Cosmetic

Abstract

To provide a powder-containing cosmetic with superior stability, dischargeability and usability.SOLUTION: A cosmetic has a container having a spout with a diameter of 1 to 9 mm, filled with an oil-in-water emulsion composition. The oil-in-water emulsion composition includes (A) a specific powder, (B) a higher alcohol, (C) a surfactant, (D) oil, and (E) water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a cosmetic preparation comprising a container equipped with a pouring spout and filled with an oil-in-water emulsion composition. [Background technology]

[0002] Conventionally, powders such as pearl pigments have been blended into makeup cosmetics to impart luster, and also into skin care cosmetics in some cases to brighten the skin condition or effectively correct unevenness of the skin. Powders such as pearl pigments have a high specific gravity and tend to settle in cosmetic compositions. Stabilizing the powder in a composition is a challenge. For example, it has been proposed to use a specific dextrin fatty acid ester in oil-based cosmetics to suppress the settling of pearl agents (Patent Document 1).

[0003] Various structures have been proposed as containers filled with liquid cosmetic compositions. Containers that use a pump structure to dispense a fixed amount of content tend to be complex in structure and expensive. In contrast, containers that do not have a pump structure or the like and have a simple structure in which the content is discharged from a spout by tilting the container tend to reduce costs. However, when using such containers, it is difficult to achieve both dischargeability at low temperatures and stability of the composition at high temperatures, and it is desirable to achieve both of these properties. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2009 / 060870 Summary of the Invention

[0005] The present inventors have surprisingly found that an oil-in-water emulsion composition comprising a specific powder, a higher alcohol, and a surfactant has excellent ejection properties even when filled into a container of a simple structure, and also has excellent stability and usability.

[0006] According to the present invention, the following inventions are provided. [1] A cosmetic preparation comprising an oil-in-water emulsion composition filled in a container having a spout with a diameter of 1 to 9 mm, The oil-in-water emulsion composition is (A) 0.05 to 2.3% by mass of a powder having a specific gravity of 1.5 to 4, based on the total amount of the oil-in-water emulsion composition; (B) higher alcohol, (C) a surfactant, (D) oil, and (E)Water A cosmetic comprising: [2] The cosmetic preparation according to [1], wherein the refractive index of component (A) is 1.6 to 2.1. [3] The cosmetic preparation according to [1] or [2], wherein component (A) is an inorganic powder. [4] The cosmetic preparation according to any one of [1] to [3], wherein the component (B) is selected from the group consisting of behenyl alcohol, stearyl alcohol, cetearyl alcohol, and cetyl alcohol. [5] The cosmetic preparation according to any one of [1] to [4], wherein the blending amount of component (B) is 0.5 to 2 mass % relative to the total amount of the oil-in-water emulsion composition. [6] The cosmetic preparation according to any one of [1] to [5], wherein the component (C) is a nonionic surfactant or an anionic surfactant. [7] The cosmetic preparation according to any one of [1] to [6], wherein component (C) is a combination of two or more selected from the group consisting of polyoxyethylene glycerin fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, and N-acyl glutamic acid salts. [8] The cosmetic preparation according to any one of [1] to [7], wherein the blending amount of component (C) is 0.1 to 3 mass % relative to the total amount of the oil-in-water emulsion composition. [9] The cosmetic preparation according to any one of [1] to [8], wherein the blending amount of component (E) is 45 to 80 mass % relative to the total amount of the oil-in-water emulsion composition.

[10] (F) The cosmetic preparation according to any one of [1] to [9], further comprising a moisturizer.

[0007] The present invention provides a pearl pigment-containing cosmetic composition that is excellent in stability, ejection property, and usability. In particular, the cosmetic composition imparts brightness to the skin and does not cause creasing or porosity during use. Furthermore, the present invention can be particularly suitably used as a skin care cosmetic composition since it gives a natural bare skin feel. Specific Description of the Invention

[0008] The present invention relates to a cosmetic product comprising a container equipped with a spout having a diameter of 1 to 9 mm and filled with an oil-in-water emulsion composition, the oil-in-water emulsion composition (hereinafter sometimes referred to as the composition) comprising (A) a specific powder, (B) a higher alcohol, (C) a surfactant, (D) an oil, and (E) water.

[0009] The container used in the present invention is a container with a spout, and is generally used by picking it up with one hand and discharging the composition into the other hand. Generally, a container with a capacity of about 50 to 300 mL is used. The diameter of the spout is 1 to 9 mm, preferably 4 to 6 mm. The container is typically a bottle container, and is preferably a bottle container with a stopper in which an inner stopper with a spout is fixed to an outer container by screwing or fitting, and a gap is provided to cover the outside of the inner stopper. Alternatively, the container may not have an inner stopper, but has an outer container integrally molded, a spout at its end, and a cap attached to cover the outside of the spout. The cap may be a one-touch type, a flat type, or the like, and is not particularly limited. These containers do not have a push-out mechanism such as a pump structure, and the contents can be discharged by tilting the container itself. The shape of the body of the container is not particularly limited, and can be selected from any cross-sectional shape such as round, oval, or rectangular, but is preferably a cylindrical container with a round cross-sectional shape. Materials for the container include glass, polypropylene (PP), polyethylene (PE), polyethylene / polyethylene / ethylene vinyl alcohol resin (PE, PP / EVOH) laminate, polypropylene / ethylene vinyl alcohol resin (PP, PP / EVOH) laminate), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS), etc., with PP being preferred.

[0010] (A) Powder The composition used in the present invention contains 0.05 to 2.3 mass % of a powder having a specific gravity of 1.5 to 4 relative to the total amount of the composition (A) (hereinafter, sometimes referred to as component (A); the same applies to other components). The specific gravity of the component (A) is from 1.5 to 4, and preferably from 2.5 to 3.5. The refractive index of the component (A) is preferably 1.6 to 2.1, and more preferably 1.8 to 2.1.

[0011] Component (A) is preferably an inorganic powder, and examples thereof include sericite, mica, kaolin, talc, silica, barium sulfate, boron nitride, titanium oxide, zinc oxide, iron oxide, pearl pigments, etc. Among these, pearl pigments are preferred, and examples of the pearl pigments include titanium oxide-coated mica, titanium oxide-coated mica, titanium oxide-coated synthetic mica, titanium oxide-coated silica, titanium oxide-coated synthetic mica, titanium oxide-coated talc, zinc oxide-coated silica, titanium oxide-coated colored mica, red iron oxide-coated mica titanium, red iron oxide-black iron oxide-coated mica titanium, carmine-coated mica titanium, and konjou-coated mica titanium, and titanium oxide-coated mica titanium is preferred. The average particle size of the component (A) is preferably 1 to 70 μm, and more preferably 3 to 30 μm. The average particle size can be measured, for example, by a laser diffraction scattering method.

[0012] The component (A) may be one type or a combination of two or more types. The blending amount of the component (A) is preferably 0.1 to 1.2 mass %, more preferably 0.3 to 1 mass %, and even more preferably 0.3 to 0.7 mass %, based on the total amount of the oil-in-water emulsion composition.

[0013] (B) Higher alcohol The composition used in the present invention comprises (B) a higher alcohol. In this specification, the higher alcohol refers to a monohydric aliphatic alcohol having, for example, 6 or more carbon atoms. There are no particular limitations on component (B) so long as it can be used in the cosmetic field, but it is preferably selected from the group consisting of behenyl alcohol, stearyl alcohol, cetearyl alcohol, and cetyl alcohol.

[0014] The component (B) may be one type or a combination of two or more types. The blending amount of the component (B) is preferably 0.5 to 2 mass %, more preferably 0.5 to 1.7 mass %, based on the total amount of the oil-in-water emulsion composition.

[0015] (C) Surfactant The composition used in the present invention comprises (C) a surfactant. The component (C) is preferably a nonionic surfactant or an anionic surfactant, and more preferably a nonionic surfactant.

[0016] The (C) component is preferably selected from the group consisting of polyoxyethylene glycerin fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, and N-acylglutamic acid salts, more preferably selected from the group consisting of polyoxyethylene glycerin fatty acid esters and glycerin fatty acid esters, and more preferably a combination of two or more thereof. Examples of polyoxyethylene glycerin fatty acid esters include polyethylene glycol laurate, polyethylene glycol palmitate, polyethylene glycol stearate, polyethylene glycol isostearate, polyethylene glycol distearate, polyoxyethylene (caprylic / capric acid) glyceryl, polyoxyethylene coconut oil fatty acid glycerin, polyoxyethylene glyceryl monooleate, polyoxyethylene glyceryl monomyristate, polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, and polyoxyethylene glyceryl triisostearate. Examples of polyoxyethylene alkyl ethers include polyoxyethylene cetyl ether, polyoxyethylene oleyl ether, polyoxyethylene behenyl ether, and polyoxyethylene stearyl ether. Examples of polyoxyethylene sorbitan fatty acid esters include polyoxyethylene (20) sorbitan monostearate, polyoxyethylene (20) sorbitan monopalmitate, polyoxyethylene (20) sorbitan monooleate, and polyoxyethylene (20) sorbitan monoisostearate. Examples of glycerin fatty acid esters include glyceryl monostearate, glyceryl distearate, glyceryl monoisostearate, and eicosadioic acid behenate. Examples of N-acyl glutamate include sodium stearoyl glutamate, N-cocoyl glutamate, N-lauroyl glutamate, N-myristoyl glutamate, N-palmitoyl glutamate, N-stearoyl glutamate, and N-oleoyl glutamate. Preferred counter ions include sodium, potassium, and triethanolamine.

[0017] The blending amount of component (C) is preferably from 0.1 to 3 mass %, and more preferably from 0.2 to 2.5 mass %, relative to the total amount of the oil-in-water emulsion composition.

[0018] (D) Oil The composition used in the present invention comprises an oil (D). In the present invention, the oil (D) does not include compounds corresponding to the higher alcohol (B) described above. Examples of component (D) include silicone oils, hydrocarbon oils, ester oils, liquid oils, and alcohols other than component (B).

[0019] Examples of silicone oils include linear polysiloxanes (e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.), cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), silicone resins forming a three-dimensional network structure, silicone rubber, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.), acrylic silicones, etc., and linear polysiloxanes are preferred.

[0020] Examples of hydrocarbon oils include isododecane, isohexadecane, isoparaffin, mineral oil, hydrogenated polyisobutene, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0021] Examples of ester oils include octyl octanoate, nonyl nonanoate, cetyl octanoate, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, ethylhexyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, and tetraethylhexane. Pentaerythrityl acid, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, tripropylene glycol pivalate, diisostearyl malate, glycerin di-2-heptylundecanoate, glycerin diisostearate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, glycerin tri-2-ethylhexanoate, glycerin trioctanoate, glycerin triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate-2-ethylhexyl palmitate, glycerin trimyristate, tri-2-heptylundecanoate glyceride, castor oil fatty acid methyl ester, oleyl oleate, acetoglyceryl Examples of suitable oleic acid salts include 2-hexyldodecyl palmitate, 2-heptylundecyl adipate, diisobutyl adipate, N-lauroyl-L-glutamic acid 2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, triethyl citrate, and cetyl ethylhexanoate.

[0022] Examples of liquid oils and fats include avocado oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese tung oil, Japanese tung oil, jojoba oil, germ oil, and triglycerin.

[0023] The component (D) may be one type or a combination of two or more types. The blending amount of the component (D) is preferably 7 to 15 mass %, more preferably 8 to 12 mass %, based on the total amount of the oil-in-water emulsion composition.

[0024] (E)Water The composition used in the present invention contains water (E). As the component (E), water used in cosmetics, quasi-drugs, etc., can be used, such as purified water, ion-exchanged water, tap water, etc. The blending amount of component (E) is preferably 45 to 80 mass %, and more preferably 50 to 75 mass %, relative to the total amount of the oil-in-water emulsion composition.

[0025] (F) Moisturizer The composition used in the present invention may further comprise (F) a moisturizing agent. Examples of component (F) include dipropylene glycol (DPG), butylene glycol (BG), polyethylene glycol, propylene glycol, isoprene glycol, isopentyl diol, glycerin, diglycerin, decaglycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, erythritol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, hydrolyzed corn starch, atelocollagen, cholesteryl-12-hydroxystearate, bisPEG-18 methyl ether dimethylsilane, sodium lactate, bile salts, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa rugosa extract, Achillea millefolium extract, and Melilot extract. The component (F) may be one type or a combination of two or more types. The blending amount of the component (F) is preferably 15 to 35 mass %, more preferably 20 to 30 mass %, based on the total amount of the oil-in-water emulsion composition.

[0026] Optional components other than those mentioned above include components commonly used in cosmetics, such as thickeners, bactericides, preservatives, pH adjusters, UV absorbers, antioxidants, fragrances, pigments, dyes, whitening agents, vitamins, and various amino acids.

[0027] The viscosity of the composition used in the present invention, measured at 30° C. using a B-type rotational viscometer, is preferably 2000 to 8000 mPa·s, and more preferably 3000 to 7000 mPa·s. The composition according to the present invention can be prepared according to a conventional method.

[0028] Examples of the cosmetic according to the present invention include skin care cosmetics (e.g., lotion, milky lotion, cream, serum, pack, mask, etc.), skin cleansing agents (e.g., face wash, makeup remover, etc.), sunscreen cosmetics, ointments, etc., and preferably skin care cosmetics. Note that these forms are merely examples, and the cosmetic according to the present invention is not limited to these forms. EXAMPLES

[0029] The present invention will be described in detail with reference to the following examples, but the present invention is not limited to these examples. The contents are expressed as mass % relative to the total amount unless otherwise specified.

[0030] [Examples 1 to 12 and Comparative Examples 1 to 8] Oil-in-water emulsion compositions of Examples 1 to 12 and Comparative Examples 1 to 8 were prepared according to the formulations shown in Tables 1 and 2. [Table 1] [Table 2] In the table, Pearl pigment 1: titanium dioxide, mica, "Temilon-MP1005" (Merck), specific gravity 2.71, average particle size 3-10μm, Pearl pigment 2: titanium dioxide, mica, "Flamenco Velvet" (BASF), specific gravity 3, average particle size 12 μm, Silica: "Sunsphere H-52" (AGC Si-Tech Co., Ltd.), specific gravity 1.8, average particle size 4-6 μm Synthetic gold mica: "Mica PDM-9L-20" (Topy Industries, Ltd.), specific gravity 2.8, average particle size 5-7μm, Boron nitride: "Lube Shine" (Kawasaki Steel Corporation), specific gravity 3.48, average particle size 5.8 μm, Bismuth oxychloride: "Ronaflare-LF-2000" (Merck), specific gravity 7.7, average particle size 10 μm It is. The compositions of Example 1 and Comparative Example 8 were measured at 30° C. using a B-type rotational viscometer to find that they were 4700 mPa·s and 1700 mPa·s, respectively.

[0031] [High temperature stability evaluation] The composition prepared above was stored at 50° C. for 28 days, and the powder state was observed and evaluated according to the following criteria. A: No powder settling was observed. B: Slight unevenness is observed, but when the container is tilted, it returns to its original state. C: Powder settling is observed.

[0032] [Low temperature discharge evaluation] The composition prepared above was filled into a container with an inner stopper and a spout having a diameter of 4 mm. The container was cooled to 10° C., and the dischargeability was evaluated according to the following criteria. A: Simply tilt the container to dispense continuously. B: If the container has a large amount of remaining liquid, it will be discharged continuously. However, it is difficult to discharge by simply tilting the container, so it will be discharged by turning the container upside down. The remaining amount is 10% or more of the filled weight. C: The container will not dispense unless it is shaken.

[0033] [Usability evaluation] A panel of experts applied the compositions prepared above to the skin and evaluated them in terms of "crease and chipping," "skin correction effect," and "lack of glare" according to the following criteria. "Hey Polokas" A: No creasing or chipping occurs during or after application. B: No creasing or chipping occurs during application. C: Creases and chips occur during application. "Skin correction effect" A: After application, the skin becomes brighter. B: After application, the skin becomes slightly brighter. C: There is no change in skin brightness before and after application. "No glare" A: It doesn't feel concealing or shiny, and looks like natural bare skin. B: There is a slight sense of concealment and glare. C: There is a strong sense of concealment and glare, which makes it seem unnatural.

[0034] [Example 13 and Comparative Example 9] Oil-in-water emulsion compositions of Example 13 and Comparative Example 9 were prepared according to the formulations shown in Table 3. [Table 3] In the table, Pearl pigment 1: titanium dioxide, mica, "Temilon-MP1005" (Merck), specific gravity 2.71, average particle size 3-10μm. The compositions of Example 13 and Comparative Example 9 were measured at 30° C. using a B-type rotational viscometer to find that they were 2930 mPa·s and 3500 mPa·s, respectively.

[0035] [Long-term stability evaluation] The compositions of Example 13 and Comparative Example 9 were left to stand at room temperature for three years, and the state of the powder was observed. No settling was observed in Example 13, but settling was observed in Comparative Example 9.

Claims

1. A cosmetic product comprising an oil-in-water emulsion composition filled in a container having a spout with a diameter of 1 to 9 mm, The oil-in-water emulsion composition is (A) 0.05 to 2.3% by mass of a powder having a specific gravity of 1.5 to 4, based on the total amount of the oil-in-water emulsion composition; (B) a higher alcohol, (C) a surfactant, (D) oil, and (E) Water A cosmetic comprising:

2. The cosmetic preparation according to claim 1, wherein the refractive index of component (A) is 1.6 to 2.

1.

3. 3. The cosmetic preparation according to claim 1, wherein the component (A) is an inorganic powder.

4. 3. The cosmetic preparation according to claim 1, wherein the component (B) is selected from the group consisting of behenyl alcohol, stearyl alcohol, cetearyl alcohol, and cetyl alcohol.

5. 3. The cosmetic preparation according to claim 1, wherein the blending amount of component (B) is 0.5 to 2 mass % relative to the total amount of the oil-in-water emulsion composition.

6. 3. The cosmetic preparation according to claim 1, wherein the component (C) is a nonionic surfactant or an anionic surfactant.

7. 3. The cosmetic preparation according to claim 1, wherein the component (C) is a combination of two or more selected from the group consisting of polyoxyethylene glycerin fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, and N-acyl glutamic acid salts.

8. 3. The cosmetic preparation according to claim 1, wherein the blending amount of component (C) is 0.1 to 3 mass % relative to the total amount of the oil-in-water emulsion composition.

9. 3. The cosmetic preparation according to claim 1, wherein the blending amount of component (E) is 45 to 80 mass % relative to the total amount of the oil-in-water emulsion composition.

10. The cosmetic preparation according to claim 1 or 2, further comprising (F) a moisturizing agent.

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