JP5368043B2 - Powdered solid cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powdery solid cosmetic that exhibits unprecedentedly high effects in moist feeling, spreadability on application, and gloss and a transparent feeling after application, and is excellent in impact resistance and designability of external appearances. <P>SOLUTION: The powdery solid cosmetic comprises the following components (A)-(E): (A) boron nitride having an average particle size of 9-25 &mu;m, (B) vaseline, (C) an ester oil, (D) a metallic soap, and (E) a glass flake having an average particle size of 65-180 &mu;m, wherein the mass ratio of the component (A) to the component (D), (A):(D), is 3:1 to 15:1. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a powder solid cosmetic having excellent characteristics, and in particular, a powder solid excellent in moist feel, elongation at the time of application, gloss and transparency after application, impact resistance, and appearance design. Regarding cosmetics.

  Conventionally, powdered solid cosmetics such as eye shadows tend to produce a brightly applied part such as eyelids, and therefore consumers tend to prefer products with higher gloss after application. Further, since these are often applied with a finger, they tend to be preferred to be more moist and feel better when applied. However, when trying to add a large amount of plate-like powder with a large particle size in order to increase the gloss after coating and the elongation at the time of coating, the impact resistance of the cosmetics deteriorates and the consumer is using it. There are disadvantages peculiar to powdered solid cosmetics, such as cracking.

  Such a problem of impact resistance becomes more prominent when a three-dimensional stamped pattern is applied, and the impact resistance is significantly deteriorated when a three-dimensional pattern with a difference in elevation is applied to improve the design. Tended to be. Therefore, there has been a drawback that if an attempt is made to add a large amount of a highly polar oil agent in order to enhance impact resistance and to give a moist feel, the elongation at the time of application deteriorates and the usability deteriorates.

Various ideas have been made so far to solve these problems (for example, Patent Documents 1 and 2). However, in any of the inventions, there is still no moist feeling, elongation at the time of coating, gloss and transparency after coating, high effects in all of the design characteristics of the appearance, impact resistance and appearance. The two effects were never enough and did not satisfy consumer satisfaction.
JP 7-215822 A JP 2000-186012 A

  The object of the present invention is a powder solid that has a moist feel, elongation at the time of coating, gloss after coating and a transparent effect that is unprecedented, and has excellent impact resistance and appearance design. To provide cosmetics.

  As a result of intensive research in order to achieve the above object, the present inventor has a moist feeling that has been conventionally applied only when a specific component is blended under a specific condition. The present inventors have found that a powdered solid cosmetic that exhibits a dramatic effect on gloss and transparency and that is excellent in impact resistance and appearance design can be obtained.

That is, the present invention provides the following components (A) to (E);
(A) Boron nitride (B) Vaseline (C) Ester oil (D) Metal soap (E) Glass flakes having an average particle size of 65 to 180 μm, containing component (A) and component (D ) With a mass ratio of (A) :( D) = 3: 1 to 15: 1
It is a powder solid cosmetic characterized by being.

  According to the present invention, a powder that has a conventional and moist feel, exhibits dramatic effects in elongation at the time of coating, gloss and transparency after coating, and has excellent impact resistance and appearance design. A solid cosmetic is obtained.

  Hereinafter, the best embodiment of the present invention will be described in detail.

  The boron nitride of component (A) used in the present invention can be used without particular limitation as long as it is generally used in cosmetics. Examples of the form of boron nitride include hexagonal crystals, wurtzite structures, cubic crystals, rhombohedral crystals, and turbostratic structures, but hexagonal crystals are most preferable from the viewpoint of usability. In the present invention, those having an average particle diameter of 9 to 25 μm are used, and more preferably 10 to 20 μm. The effects of the present invention which are not so conventional, moist feel, elongation during coating, gloss and transparency after coating, and impact resistance are exhibited only when those having a particle size within the above range are used. Examples of such commercially available products include SHP-5 and SHP-6 (manufactured by Mizushima Alloy Iron Company).

  Since boron nitride has difficulty in freely controlling the aspect ratio, it is very important in the present invention that the average particle diameter of the major axis is controlled within the above range. In this specification, the particle size is measured using a laser diffraction / scattering particle size distribution analyzer: LA-920 (manufactured by Horiba Ltd.), and the “average particle size” is D50 (cumulative) in the obtained cumulative particle size distribution curve. It means the point of the particle size where the particle size distribution is 50%.

  As the component (A), boron nitride can be used by appropriately selecting one or more kinds, and the blending amount thereof is 1 to 40% by mass (hereinafter simply “%”) based on the total amount of the cosmetic. It is preferable to be 3) to 30%, more preferably 5 to 25%. When used within these ranges, the effects of the present invention are particularly exhibited.

  The petrolatum (B) used in the present invention is not particularly limited as long as it is generally used in cosmetics. Usually, petrolatum has an occlusive property, so it is used for the purpose of imparting a smooth feel, but in the present invention, it has a moist feel, elongation during application, gloss and transparency after application, and all effects of impact resistance. Contribute to. As this commercially available product, there is Chloratum V (manufactured by Croda Japan).

  In the present invention, one or two or more of these can be selected and used as appropriate, and the blending amount is preferably 0.1 to 15%, more preferably 1 to 15% based on the total amount of the cosmetic. 10%. When used within these ranges, the effects of the present invention, such as the traditionally moist feel, elongation at the time of application, gloss and transparency after application, and impact resistance, are particularly exhibited.

As the ester oil (C) used in the present invention, any ester oil that is liquid at 25 ° C. and generally used in cosmetics can be used without particular limitation. Specifically, olive oil, castor oil, jojoba oil, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, cetyl 2-ethylhexanoate, isocetyl stearate, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, Glyceryl diisostearate, 2-ethylhexyl adipate, diisostearyl malate, glyceryl tri (caprin / caprylate), trimethylolpropane trioctanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, di-2 -Neopentyl glycol ethylhexanoate, propylene glycol dicaprate and the like. In particular, when diisostearyl malate is selected and used, the moist feel, gloss after application, and impact resistance, which are the effects of the present invention, are maximized.

  In the present invention, one or more of these can be selected and used from time to time, and the blending amount is preferably 1 to 20%, more preferably 2 to 2, based on the total amount of cosmetics. 15%. When used within these ranges, the effect of the present invention is maximized.

The metal soap of component (D) used in the present invention has a general formula of (RCOO) _n M (wherein R represents an aliphatic hydrocarbon group having 10 to 18 carbon atoms. M represents Na, K, Rb, Any metal other than Cs and Fr, and aluminum, zinc, magnesium, calcium, lithium, and the like can be used) and is not particularly limited as long as it is generally used in cosmetics. Can also be used. For example, zinc myristate, magnesium myristate, zinc palmitate, zinc stearate, magnesium stearate, aluminum stearate, calcium stearate and the like can be mentioned. In particular, when zinc myristate and / or magnesium myristate is selected and used, the moist feel, gloss after application, and impact resistance, which are the effects of the present invention, are maximized. Examples of such commercially available products include powder base M (zinc myristate, manufactured by NOF Corporation). Moreover, these may be mix | blended directly with cosmetics and may be mix | blended indirectly as surface treatment agents, such as extender.

  In the present invention, one or more of these can be selected and used as appropriate. The blending amount is preferably 0.01 to 5%, more preferably 0.1 to 4% based on the total amount of the cosmetic. When used within these ranges, the effect of the present invention is maximized.

  The glass flake of component (E) used in the present invention can be used without particular limitation as long as it is generally used in cosmetics, and is described in detail in Japanese Patent No. 3702742. These glass flakes may be coated with one or more precious metals, metal oxides, and / or silica, such as titanium oxide coated glass flakes, silver coated glass flakes, gold coated glass flakes, iron oxide coated glass flakes. Furthermore, these may be subjected to a surface treatment such as a hydrophobic treatment with a general oil agent, silicone oil, fluorine oil or the like by a known method. Moreover, the average particle diameter of the major axis is 65 to 180 μm, and the shape is not particularly limited and can be used. The effects of the present invention which are not so conventional, moist feel, elongation at the time of application, gloss and transparency after application, impact resistance, and design properties can be exhibited only when a product having a particle size within the above range is used. The Examples of such commercially available products include Metashine MC1080 (titanium oxide-coated glass flake) manufactured by Nippon Sheet Glass Co., Ltd.

  In the present invention, one or more of these can be selected and used as appropriate, and the blending amount is preferably 0.1 to 40%, more preferably based on the total amount of cosmetics. 1-30%. When used within these ranges, the effect of the present invention is maximized.

  Moreover, the mass ratio of the component (A) and the component (D) in the present invention is (A) :( D) = 3: 1 to 15: 1, more preferably (A) :( D) = 5: 1-12: 1. In the present invention, only when blended within these ranges, dramatic effects such as a conventionally soft feel, elongation at the time of application, gloss and transparency after application, and impact resistance are exhibited.

  In addition, the powdered solid cosmetic composition according to the present invention exhibits a moist feel and a high design appearance by using a known method such as compression molding so that the surface has a three-dimensional pattern with a height difference. It is preferable in that it can be performed. Moreover, in addition to the point that the height difference between the deepest portion and the topmost portion is 0.5 mm or more, this solid pattern contributes to the maximum benefit of the impact resistance effect of the present invention. In view of this, it is more preferable to be 1.0 mm or more.

  The “three-dimensional pattern” in the present specification refers to a pattern having at least one convex / concave portion having a height difference. In particular, in the present invention, when this three-dimensional pattern has at least two or more repeating units and is applied to the cosmetic surface, not only can a higher design property be exhibited, but also higher impact resistance is required. Therefore, it is preferable. In addition, the “repeating unit” in the present specification refers to one unit of a three-dimensional pattern in the case where at least two or more of the above-mentioned three-dimensional patterns having the same shape are repeated on the cosmetic surface.

  Further, the powdered solid cosmetic composition according to the present invention has a moist feeling when glass flakes having an average particle diameter of 20 to 60 μm are attached to the surface of the three-dimensional pattern having at least two or more repeating units. Since elongation at the time of application, gloss after application, and high designability can be obtained, it is preferable. Furthermore, at that time, it is more preferable that the adhered glass flakes form a uniform thin film layer different from the powdered solid cosmetic.

  The method for adhering the glass flakes to the surface of the powdered solid cosmetic in the present invention is not particularly limited, but is performed by a known method such as spraying using an organic solvent after applying a solid pattern to the powdered solid cosmetic. This is preferable because glass flakes can be deposited most uniformly and easily. Such an adhesion method is disclosed in, for example, Japanese Patent Application Laid-Open No. 2007-186437. The average particle diameter of the major axis of the glass flakes to be adhered is 20 to 60 μm. When the particle size is within this range, the effects of the present invention such as moist feel, elongation at the time of application, and gloss after application are maximized. In addition to the glass flakes, glass flakes having a particle size not falling within the above range, or bright pigments such as general pearl pigments may be mixed and adhered.

  It does not specifically limit as a manufacturing method of the powder solid cosmetics of this invention, It can manufacture by the well-known method generally used for cosmetics. For example, a cosmetic base mixed with powder and oil is filled into a container, etc., and a dry molding method in which compression molding is performed, or a container obtained by mixing the cosmetic base with a solvent into a slurry is filled. In addition, there is a wet molding method in which the solvent is removed by natural drying, warm drying, warm air drying, vacuum suction, etc. after compression molding, and any method can be used in the present invention.

  The powdered solid cosmetic obtained by the above method can be used as, for example, eye shadow, eye liner, teak, eyebrow, face color, foundation, etc. Among them, eye shadow is most suitable in terms of its product characteristics. .

In the present invention, pigments other than the component (A) boron nitride, the component (D) metal soap, and the component (E) glass flakes can be used to the extent that the present invention is not impaired. These may be any as long as they are usually used in cosmetics. The form is not particularly limited by the shape such as plate shape, spindle shape, needle shape, particle diameter, particle structure such as porous or nonporous. For example, inorganic powders, glitter powders, organic powders, pigment powders, composite powders and the like can be mentioned, and one kind or a combination of two or more kinds can be used. Specifically, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, titanium / titanium oxide sintered product, cerium oxide, magnesium oxide, zirconium oxide, antimony oxide, magnesium carbonate, calcium carbonate , Chromium oxide, chromium hydroxide, aluminum silicate, magnesium silicate, calcium silicate, barium silicate, magnesium aluminum silicate, magnesium magnesium silicate, mica, synthetic mica, synthetic sericite, sericite, talc, muscovite , Phlogopite, red mica, biotite, kaolin, barium sulfate, bentonite, smectite, diatomaceous earth, hydroxyapatite and other inorganic powders, bismuth oxychloride, titanium mica, titanium dioxide coated bismuth oxychloride, iron oxide coated mica , Iron oxide coated mica titanium Bituminous coated mica titanium, carmine coated mica titanium, organic pigment coated mica titanium, iron oxide / titanium oxide coated synthetic phlogopite, fish phosphorus foil, polyethylene terephthalate / aluminum / polyurethane laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / Bright powders such as polymethylmethacrylate laminated film powder, polyamide resin, polyethylene resin, polyacrylic resin, polyester resin, fluorine resin, cellulose resin, polystyrene resin, styrene-acrylic copolymer resin Copolymer resin such as polypropylene resin, silicone resin and urethane resin, organic powder such as N-acyl lysine, natural organic powder such as starch, silk powder and cellulose powder, organic tar face Dye powders such as organic pigment lake pigments, metal powders such as aluminum powder, gold powder, silver powder, fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium dioxide containing silicon dioxide And composite powders such as zinc oxide-containing silicon dioxide. Further, these dyes and pigments may be coated on the surface with silicones, lauroyl lysine, stearoyl glutamate, perfluoroalkyl phosphate diethanolamine salt, polyethylene, other oils, and the like. In addition, the powder solid cosmetics of this invention contain powder components, such as these pigments, in 60 to 90% of range.

  The powder solid cosmetic of the present invention contains various components generally used in cosmetics, for example, component (B), as necessary and within the range not impairing the effects of the present invention, in addition to the above-described components. Solid or semi-solid oil components other than petroleum jelly, liquid oil components other than ester oil of component (C), surfactants, moisturizers, thickeners, water-soluble polymers, fragrances, bactericides, preservatives, antioxidants Agents, pH adjusters, chelating agents, UV absorbers, solvents, anti-inflammatory agents, antiandrogens, hair restorers, antioxidants, refreshing agents, herbal extracts and vitamins, cuticle protection ingredients, etc. it can.

  As the above-described solid or semi-solid oily component other than petrolatum of component (B) and liquid oil other than ester oil of component (C) that can be used in the present invention, those commonly used in cosmetics If it is, it will not specifically limit, Any thing can be used. For example, waxes such as paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, ethylene / propylene copolymer, α-olefin oligomer, montan wax, Fischer-Tropsch wax, mole, beeswax, carnauba wax, candelilla wax, gay wax, rice bran wax, etc. , Organic silicone resins such as acrylic silicone / graft copolymer, trimethylsiloxysilicic acid, oil-soluble resins such as eicosene / vinyl pyrrolidone copolymer, candelilla wax resin, rosin resin, stearic acid, palmitic acid, 2 -Fatty acids such as ethylhexanoic acid, undecylenic acid, palmitooleic acid, isostearic acid, ricinoleic acid, linoleic acid, oleic acid, macadamia nut oil, olive oil Bulb oil, camellia oil, avocado oil, corn oil, castor oil, sesame oil, safflower oil, cottonseed oil, soybean oil, jojoba oil, palm oil, palm oil, hardened palm oil, hardened oil, hardened castor oil, egg yolk oil, rapeseed Oil, fat such as wheat germ oil, peanut oil, rice bran oil, cetyl alcohol, stearyl alcohol, lauryl alcohol, isostearyl alcohol, lanolin alcohol, octyldodecanol, capryl alcohol, oleyl alcohol and other higher alcohols, light liquid isoparaffin, fluid Hydrocarbons such as paraffin, squalane, polybutene, and isododecane, silicone oils such as low polymerization dimethylpolysiloxane, high polymerization dimethylpolysiloxane, and methylphenylpolysiloxane, fluorine-modified polysiloxane, perfluorodecane, perfluoroolefin Fluorine oils such as kutan and perfluoropolyether, lanolin derivatives such as liquid lanolin, lanolin acetate, lanolin fatty acid isopropyl, lanolin alcohol and the like.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, the technical scope of this invention is not limited by these Examples. In addition, the numerical value in a table | surface represents content (%). Prior to the examples, the evaluation methods employed in each example will be described.

(1) Evaluation test method for impact resistance The test article was dropped on a plywood board from a height of 50 cm in an upright direction, and an evaluation was made based on how many times it was dropped. The evaluation criteria are as follows.
(Evaluation criteria)
◎: 11 times or more ○: 7 to 10 times △: 5 to 6 times ×: 4 times or less

(2) Sensory evaluation test method Twenty female panelists applied test products to their skin and evaluated usability (moist feeling, elongation) and finish (gloss, transparency) according to the following evaluation criteria. . Moreover, about the designability with respect to the external appearance of a test article, I had you evaluate by the same evaluation criteria by visual observation.
(Evaluation criteria)
More than 17 people answered good
12-16 people who answered good; ○
8-11 people who answered that it was good;
The number of people who answered that it is good is 7 or less; ×
(Evaluation item)
a. Usability (moist feeling)
b. Usability (elongation)
c. Finish (Glossy)
d. Finish (transparency)
e. Appearance of design

Preparation method A of powder solid cosmetic (eye shadow): Components (9) to (20) are uniformly mixed with a Henschel mixer.
B: Components (1) to (8) are mixed and dissolved by heating at 90 ° C.
C: B was added to A and mixed uniformly, then pulverized, and press-filled into an intermediate dish as shown in FIGS.
D: Thereafter, 50 parts by mass of the components (21) to (22) are uniformly mixed with 50 parts by mass of isopropyl alcohol, sprayed onto the surface of C using a spray, and adhered, and then the desired powdered solid cosmetic ( Eye shadow).

  Table 1 shows the component composition of each of the above compositions and the evaluation test results.

  As shown in Table 1, in Examples 1 to 5 of the present invention, the moist feel, elongation at the time of application, gloss and transparency after application, impact resistance, and design of appearance are all points. These are clearly superior to those of Comparative Examples 1-6.

  Wet powder solid cosmetics (eye shadow) were prepared according to the following component composition and preparation method, and the above evaluation tests were conducted. All of them had a moist feel, elongation during application, gloss and transparency after application, Excellent results were shown in all aspects of impact and appearance design.

Preparation method A of wet powder solid cosmetic (eye shadow): After all the components (1) to (26) are uniformly mixed at 50 ° C., the mixture is cooled to room temperature to obtain a powder cosmetic base.
B: 60 parts by mass of ethanol is added to 100 parts by mass of the powder cosmetic base and uniformly mixed to obtain a slurry.
C: This is filled into an inner dish, compression molded using a molding head, and ethanol is sucked from the back surface of the molding head at the same time.
D: After suction, the molded product is dried at 37 ° C. for half a day.
E: Thereafter, 50 parts by mass of component (27) is uniformly mixed with 50 parts by mass of isopropyl alcohol, sprayed onto the surface of D using a spray, and adhered, and then the desired powdered solid cosmetic (eye shadow) is obtained. Obtained.

Front view of eye shadow shown in the example Top view of eye shadow shown in the example AA line sectional view of the eye shadow shown in the examples BB sectional view of the eye shadow shown in the examples Reference perspective view showing the usage state of the eye shadow shown in the embodiment Reference front view showing the recessed portion of the eye shadow shown in the example Right side view of the eye shadow shown in the example Rear view of eye shadow shown in the example CC sectional view of eye shadow shown in Example

Explanation of symbols

1 Middle dish 2 Filling 3 Concave 4 Convex

Claims (4)

The following components (A) to (E);
(A) Boron nitride (B) Vaseline (C) Ester oil (D) Metal soap 0.1-5 mass% with an average particle diameter of 9-25 micrometers
(E) It contains glass flakes having an average particle size of 65 to 180 μm, and the mass ratio of component (A) to component (D) is (A) :( D) = 3: 1 to 15: 1. Powdered solid cosmetics characterized.   Component (C) is diisostearyl malate or glyceryl tri-2-ethylhexanoate, the content of component (B) is 3 to 10% by mass, and the content of component (C) is 3 to 6 The powder solid cosmetic according to claim 1, wherein the powder solid cosmetic is mass%.   The powder solid cosmetic according to claim 1 or 2, wherein a three-dimensional pattern is applied to the surface, and a difference in height between the deepest part and the top part is 0.5 mm or more.   The powder solid makeup according to any one of claims 1 to 3, wherein the surface is provided with a three-dimensional pattern having at least two repeating units, and glass flakes having an average particle size of 20 to 60 µm are adhered. Fee.

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