Cosmetic

Abstract

To provide a pearl pigment-containing cosmetic with superior stability and superior dischargeability.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 pearl pigment with an average particle size of 1-70 μm, (B) a higher fatty acid, (C) a thickener, (D) oil, (E) water, and (F) a higher alcohol.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 pearl pigment having a specific average particle size, a higher fatty acid, a thickener, and a higher alcohol has excellent dischargeability, stability, and usability even when filled into a container of a simple structure.

[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) a pearl pigment having an average particle size of 1 to 70 μm; (B) Higher fatty acids, (C) a thickener, (D) Oil, (E) water, and (F) Higher alcohol A cosmetic comprising: [2] The cosmetic preparation according to [1], wherein the blending amount of the component (A) is 0.1 to 2 mass % based on the total amount of the oil-in-water emulsion composition. [3] The cosmetic preparation according to [1] or [2], wherein the component (B) is a linear higher fatty acid having 16 to 25 carbon atoms. [4] The cosmetic preparation according to any one of [1] to [3], wherein the blending amount of component (B) is 0.5 to 1.4 mass % relative to the total amount of the oil-in-water emulsion composition. [5] The cosmetic preparation according to any one of [1] to [4], wherein the component (C) is selected from the group consisting of polysaccharides and vinyl polymers. [6] The cosmetic preparation according to [5], wherein the blending amount of the polysaccharide is 0.05 to 0.5 mass % based on the total amount of the oil-in-water emulsion composition. [7] The cosmetic preparation according to [5] or [6], wherein the polysaccharide comprises at least one of succinoglycan and xanthan gum. [8] The cosmetic preparation according to any one of [1] to [7], wherein the ratio of the blending amount of component (C) to the blending amount of component (B) (component (C) / component (B)) is, in mass ratio, 0.2 to 0.4. [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] (G) The cosmetic preparation according to any one of [1] to [9], further comprising a glycerin monoalkyl ether.

[11] (H) The cosmetic preparation according to any one of [1] to

[10] , further comprising a nonionic surfactant.

[12] (I) The cosmetic preparation according to any one of [1] to

[11] , further comprising a moisturizer.

[0007] The present invention provides a pearl pigment-containing cosmetic composition that is excellent in stability and ejection properties. The present invention also has excellent usability. In particular, the cosmetic composition imparts brightness and moisture to the skin. Furthermore, the present invention can be suitably used, in particular, as a skin care cosmetic composition, due to its natural pearly 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 pearl pigment having an average particle size of 1 to 70 μm, (B) a higher fatty acid, (C) a thickener, (D) an oil, (E) water, and (F) a higher alcohol.

[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) Pearl pigment The composition used in the present invention contains (A) a pearl pigment having an average particle size of 1 to 70 μm (hereinafter, sometimes referred to as component (A). The same applies to other components). Examples of component (A) 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 oxide-coated mica titanium, red oxide / black iron oxide-coated mica titanium, carmine-coated mica titanium, and konjou-coated mica titanium, with titanium oxide-coated mica being preferred. The average particle size of the component (A) is from 1 to 70 μm, preferably from 1 to 60 μm, and more preferably from 1 to 40 μm. The average particle size can be measured, for example, by a laser diffraction scattering method.

[0011] 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 2 mass %, more preferably 0.2 to 1.5 mass %, and even more preferably 0.3 to 0.8 mass %, based on the total amount of the oil-in-water emulsion composition.

[0012] (B) Higher fatty acids The composition used in the present invention comprises (B) a higher fatty acid. The (B) component is "R 1 COOH" and R 1 R is a saturated or unsaturated hydrocarbon group, preferably a saturated hydrocarbon group. 1 R can be a straight-chain or branched hydrocarbon group, preferably a straight-chain hydrocarbon group. 1 The carbon number is preferably 8 or more, and more preferably 16 to 25. In a preferred embodiment, the component (B) is a linear higher fatty acid having 16 to 25 carbon atoms. Specifically, the component (B) may be one or a combination of two or more of behenic acid, palmitoleic acid, oleic acid, isomyristic acid, isopalmitic acid, and isostearic acid. The component (B) is preferably two or more, more preferably three or more, and even more preferably a combination of three.

[0013] The blending amount of component (B) is preferably 0.5 to 1.4 mass %, and more preferably 0.5 to 1.0 mass %, relative to the total amount of the oil-in-water emulsion composition.

[0014] The composition used in the present invention may contain an alkali constituting a salt of a higher fatty acid as a neutralizing agent. Examples of the neutralizing agent include inorganic alkalis such as potassium hydroxide and sodium hydroxide, organic alkalis such as triethanolamine, and basic amino acids such as lysine and arginine. Among these, inorganic alkalis such as potassium hydroxide are preferred.

[0015] (C) Thickener The composition used in the present invention comprises (C) a thickener. Component (C) is preferably selected from the group consisting of polysaccharides and vinyl polymers, and more preferably comprises a polysaccharide. Examples of polysaccharides include xanthan gum, gellan gum, succinoglucan, sclerotium gum, gum arabic, Alcaligenes polysaccharide, hydroxyethylcellulose, guar gum, carrageenan, hyaluronic acid, tuberose polysaccharide, Tremella fuciformis polysaccharide, locust bean gum, oxidized cellulose, etc., and among these, xanthan gum and / or succinoglycan are preferred. In a preferred embodiment, the polysaccharide comprises at least one of xanthan gum or succinoglycan, and more preferably succinoglycan. Examples of the vinyl polymer include polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, and carboxyvinyl polymer (carbomer), with carboxyvinyl polymer being preferred.

[0016] The component (C) may be one type or a combination of two or more types. The blending amount of the component (C) is preferably 0.1 to 0.6 mass %, more preferably 0.1 to 0.4 mass %, based on the total amount of the oil-in-water emulsion composition. When component (C) contains a polysaccharide, the blending amount of the polysaccharide is preferably 0.05 to 0.5 mass %, and more preferably 0.05 to 0.3 mass %, relative to the total amount of the oil-in-water emulsion composition.

[0017] The ratio of the blend amount of component (C) to the blend amount of component (B) (component (C) / component (B)) is preferably 0.2 to 0.4, more preferably 0.2 to 0.35, by mass. By satisfying this range, it is possible to improve the dischargeability at low temperatures while maintaining stability at high temperatures.

[0018] (D) Oil The composition used in the present invention contains an oil component (D). In the present invention, the oil component (D) does not include compounds corresponding to the higher fatty acid (B) described above, the higher alcohol (F) described below, and the glycerin monoalkyl ether (G). Examples of the component (D) include silicone oil, hydrocarbon oil, ester oil, and liquid oils and fats.

[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 5 to 15 mass %, more preferably 8 to 15 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 from 45 to 80 mass %, and more preferably from 50 to 70 mass %, relative to the total amount of the oil-in-water emulsion composition.

[0025] (F) Higher alcohol The composition used in the present invention comprises (F) a higher alcohol. In the present specification, higher alcohol refers to a monohydric aliphatic alcohol having a carbon number of, for example, 6 or more. Examples of higher alcohols include behenyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, and cetearyl alcohol.

[0026] The component (F) may be one type or a combination of two or more types. The blending amount of the component (F) is preferably 0.1 to 1 mass %, more preferably 0.2 to 0.8 mass %, based on the total amount of the oil-in-water emulsion composition.

[0027] (G) Glycerol monoalkyl ether The composition used in the present invention may further contain (G) a glycerin monoalkyl ether. In this specification, glycerin monoalkyl ether means a structure in which a linear saturated alkyl chain and glycerin are bonded by an ether bond. Examples of glycerin monoalkyl ether include glycerin monocetyl ether (chimyl alcohol) and glycerin monostearyl ether (batyl alcohol).

[0028] Component (G) may be one type, or a combination of two or more types. The blending amount of component (G) is preferably 0.05 to 0.5 mass %, more preferably 0.1 to 0.3 mass %, based on the total amount of the oil-in-water emulsion composition.

[0029] (H) Nonionic surfactants The composition used in the present invention may further contain (H) a nonionic surfactant. The (H) component is preferably a polyoxyethylene glycerin fatty acid ester or a glycerin fatty acid ester, more preferably a polyoxyethylene glycerin fatty acid ester. Examples of the (G) component include PEG-5 glyceryl stearate, PEG-60 glyceryl isostearate, and glyceryl stearate. Component (H) may be one type or a combination of two or more types. The blending amount of component (H) is preferably 0.5 to 4 mass %, more preferably 1 to 3 mass %, based on the total amount of the oil-in-water emulsion composition.

[0030] (I) Moisturizer The composition used in the present invention may further comprise (I) a moisturizing agent. Examples of component (I) 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 (I) may be one type, or a combination of two or more types. The blending amount of the component (I) is preferably 5 to 35 mass %, more preferably 10 to 30 mass %, based on the total amount of the oil-in-water emulsion composition.

[0031] Optional components other than those mentioned above include components commonly used in cosmetics, such as bactericides, preservatives, pH adjusters, UV absorbers, antioxidants, fragrances, pigments, dyes, whitening agents, vitamins, and various amino acids.

[0032] The viscosity of the composition used in the present invention, measured at 30° C. using a B-type rotational viscometer, is preferably 2500 to 6500 mPa·s, and more preferably 3000 to 6000 mPa·s. The composition according to the present invention can be prepared according to a conventional method.

[0033] Examples of the cosmetic according to the present invention include skin care cosmetics (e.g., lotion, milky lotion, cream, serum, pack, mask, etc.), makeup cosmetics (e.g., foundation, makeup base, 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

[0034] 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.

[0035] [Examples 1 to 9 and Comparative Examples 1 to 5] According to the formulations shown in Table 1, oil-in-water emulsion compositions of Examples 1 to 9 and Comparative Examples 1 to 5 were prepared. [Table 1] In the table, Pearl pigment 1: titanium dioxide, mica, "Temilon-MP1005" (Merck), average particle size 3-10 μm, Pearl pigment 2: titanium dioxide, mica, "Flamenco Velvet" (BASF), average particle size 12 μm, Pearl pigment 3: titanium dioxide, mica, "Ronapearl MP45" (Merck), average particle size 49-57 μm, Pearl pigment 4: Titanium oxide, mica, "Twinkle Pearl 500WS" (Nihon Koken Kogyo Co., Ltd.), average particle size 90 μm, Pearl pigment 5: borosilicate (Ca / Al), titanium oxide, tin oxide, "Metashine MC1120RS" (Nippon Sheet Glass Co., Ltd.), average particle size 120 μm, Xanthan gum 1: "Nomcort ZZ" (Nisshin Oillio Group, Ltd.), Xanthan gum 2: "Keltrol" (Sansho Co., Ltd.) It is. The compositions of Example 1 and Comparative Example 1 were measured at 30° C. using a B-type rotational viscometer to find that they were 4200 mPa·s and 5300 mPa·s, respectively.

[0036] [High temperature stability evaluation] The compositions prepared as above were stored at 50° C. for 28 days, and those in which sedimentation of the pearl pigment was observed were rated as ×, and those in which no sedimentation was observed were rated as ◯.

[0037] [Low temperature discharge evaluation] The composition prepared above is filled into a container with an inner stopper and a spout with a diameter of 4 mm. The container is cooled to 10°C and tilted at about 90° to check the dischargeability. The composition that could be continuously discharged was evaluated as ◯, and the composition that could not be continuously discharged was evaluated as ×.

[0038] [Usability evaluation] A panel of experts applied the compositions prepared above to the skin and evaluated "skin correcting effect," "moisturizing effect," and "absence of glare" according to the following criteria. "Skin correction effect" A: After application, the skin becomes brighter. B: After application, the skin becomes slightly brighter. C: There is no change in the brightness of the skin before and after application. "Moist" A: After application, the skin feels moisturized. B: After application, the skin feels slightly moisturized. C: Skin does not feel moisturized after application. "No glare" A: It has a natural pearly feel and is suitable as a skin care cosmetic. B: There is a slight pearly sheen, but it can be used as a skin care cosmetic. C: The pearls sparkle more brightly.

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) a pearl pigment having an average particle size of 1 to 70 μm; (B) higher fatty acid, (C) a thickener, (D) oil, (E) water, and (F) Higher alcohol A cosmetic comprising:

2. 2. The cosmetic preparation according to claim 1, wherein the blending amount of component (A) is 0.1 to 2 mass % relative to the total amount of the oil-in-water emulsion composition.

3. 3. The cosmetic preparation according to claim 1, wherein the component (B) is a linear higher fatty acid having 16 to 25 carbon atoms.

4. 3. The cosmetic preparation according to claim 1, wherein the blending amount of component (B) is 0.5 to 1.4 mass % relative to the total amount of the oil-in-water emulsion composition.

5. 3. The cosmetic preparation according to claim 1, wherein the component (C) is selected from the group consisting of polysaccharides and vinyl polymers.

6. The cosmetic preparation according to claim 5, wherein the blending amount of the polysaccharide is 0.05 to 0.5% by mass based on the total amount of the oil-in-water emulsion composition.

7. The cosmetic preparation according to claim 5 , wherein the polysaccharide comprises at least one of succinoglycan and xanthan gum.

8. 3. The cosmetic preparation according to claim 1, wherein the ratio of the blending amount of component (C) to the blending amount of component (B) (component (C) / component (B)) is 0.2 to 0.4 in terms of mass ratio.

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. 3. The cosmetic preparation according to claim 1 or 2, further comprising (G) a glycerin monoalkyl ether.

11. 3. The cosmetic preparation according to claim 1, further comprising (H) a nonionic surfactant.

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

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