WO2022079886A1

WO2022079886A1 - Solid cosmetic and production method for solid cosmetic

Info

Publication number: WO2022079886A1
Application number: PCT/JP2020/039060
Authority: WO
Inventors: 彩や香湊; ひろみ老川; 希佳高橋; 竹生山脇
Original assignee: 株式会社資生堂
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-04-21
Also published as: JPWO2022079886A1

Abstract

[Problem] This solid cosmetic has a three-dimensional gradation having depth. In addition, provided is a production method for the solid cosmetic. [Solution] A solid cosmetic comprising: a magnetic body; and a base agent, wherein the base agent is transparent or translucent, and the magnetic body is oriented in a non-random manner to form one or more patterns. In addition, a production method for a solid cosmetic, the method comprising: mixing a composition containing magnetic bodies and a transparent or translucent base agent; melting the mixed composition; applying a magnetic field to the melted composition so that the magnetic bodies are aligned in a non-random manner to form one or more patterns; and thereafter, solidifying the composition, wherein the viscosity of the melted composition as measured using a Type B viscometer is at most 300000 mPa·s.

Description

Solid cosmetics and manufacturing method of solid cosmetics

The present invention relates to solid cosmetics, and more particularly to solid cosmetics containing a magnetic substance and a method for producing the same.

Conventionally, in cosmetics, as a method of forming desired characters and patterns in a single container, a method of forming desired characters and patterns by pressing or the like on the surface of powdered cosmetics, and a partition in the container are provided. A method of filling each chamber formed by this partition with a powder having a different color tone by slurry filling or the like, and then removing the partition for molding. A powder having a color tone different from that of this solid cosmetic is placed on the surface of the solid cosmetic. A method of dispersing the dispersion in a volatile solvent, adhering the dispersion liquid according to the contours of desired characters, patterns, etc., and then evaporating the powder to form the desired characters-patterns, etc. on the surface of the solid cosmetic, molded. Place a screen mesh with the desired characters and patterns on the surface of the powdered cosmetics, and let the powder of a different color from the ground powdered cosmetics pass from above the screen meshille, and put it on the ground powdered cosmetics. A manufacturing method for crimping a desired character or pattern is known.

Further, in Patent Document 1, as a solid cosmetic in which a three-dimensional image is developed, a composite in which a magnetic material is coated on a mica is mixed in a cosmetic base and mixed, and then a magnetic field is applied in a flowing state of the mixture. A solid cosmetic is described in which an image formed by controlling the strength and direction of the magnetic flux is developed on the surface by applying the mixture and then solubilizing the mixture to form a molded product. By using a magnetic field, this solid cosmetic can be applied with desired characters and patterns on the surface of the cosmetic, and can be developed as a three-dimensional image.

Patent Document 2 contains one or more magnetic materials in the form of a product cast with a stick or cupel, having an outer surface and a non-zero magnetic susceptibility, the magnetism thereof. A solid composition is described in which the body is non-randomly oriented in the solid composition on at least a portion of the outer surface to form one or more patterns on the outer surface.

Japanese Patent No. 3279659 Special Table 2015-503604A

The solid cosmetics described in

Patent Documents

1 and 2 all use a magnetic material to form a three-dimensional image or a pattern on the surface (or outer surface) of the solid cosmetic, and have a viewpoint of making the appearance beautiful. Therefore, the stereoscopic image and pattern need to be clear. For this reason, forming a so-called gradation in which colors and shades are expressed by continuous gradation leads to obscuring a three-dimensional image or pattern that must be clear, and is not considered in the first place.

Now, when the inventors have manufactured a solid cosmetic by combining a transparent base and a magnetic substance, a three-dimensional gradation with a depth that cannot be imagined from a conventional solid cosmetic using a non-transparent base is produced. We found that it could be formed and came up with the present invention.

That is, an object of the present invention is to provide a solid cosmetic containing a magnetic substance using a transparent base, which can form a deep three-dimensional gradation, and a method for producing the solid cosmetic. It is something to do.

The solid cosmetic of the present invention is
A solid cosmetic containing a magnetic substance and a base.
The base is transparent or translucent,
The magnetic material is non-randomly oriented to form one or more patterns.

It is preferable that the magnetic material gradually decreases and orients in the pattern in a predetermined direction, and the pattern is visually recognized in a gradation on the surface of the cosmetic.

The predetermined direction may be the thickness direction of the cosmetic.

The solid cosmetic of the present invention preferably has a melting point or heat transition temperature of more than 25 ° C. and a hardness of 5 gf or more.

The base preferably contains a gelling agent.

Gelling agents are dextrin palmitate, dibutyllauroylglutamide, dibutylethylhexanoylglutamide, polyamide-8, hydrogenated vegetable oil trifatty acid (C10-18) glyceryl, and hydrogenated soybean polyglyceriz (C15-23) alkane. , (Ethylene / propylene / styrene) copolymer, (butylene / ethylene / styrene) copolymer, at least one selected from them is preferable.

When the solid cosmetic of the present invention further contains powder, the powder is preferably 5% by mass or less based on the total amount of the cosmetic.

When the magnetic material contains a base material and a magnetic material, the magnetic material is preferably 3% by mass or more based on the total amount of the magnetic material.

The base material is preferably at least one selected from aluminum, alumina, glass, natural mica, synthetic mica, talc and silica.

In the method for producing a solid cosmetic of the present invention, a composition containing a magnetic substance and a transparent or translucent base is mixed, the mixed composition is melted, and a magnetic field is applied to the molten composition to form the magnetic substance. It is a method for producing a solid cosmetic that is non-randomly oriented to form one or a plurality of patterns and then solidifies, and the viscosity of the B-type viscometer of the melt composition is 300,000 mPa · s or less.

The solid cosmetic of the present invention is
A solid cosmetic containing a magnetic substance and a base.
The base is transparent or translucent,
Since the magnetic material is non-randomly oriented to form one or more patterns, it is possible to form a three-dimensional gradation with depth.

FIG. 1 is a front view showing a first aspect of the solid cosmetics of the present invention. FIG. 2 is a cross-sectional view taken along the line I-I of FIG. 1 (for convenience, the arrangement of the magnetic device is also shown). FIG. 3 is a front view showing a second aspect of the solid cosmetics of the present invention. FIG. 4 is a sectional view taken along line II-II of FIG. 3 (for convenience, the arrangement of the magnetic device is also shown). FIG. 5 is a schematic diagram showing a third aspect of the solid cosmetics of the present invention (for convenience, the arrangement of magnetic devices is also shown).

The solid cosmetic of the present invention is
A solid cosmetic containing a magnetic substance, a magnetic substance, and a base.
The base is transparent or translucent,
The magnetic material is non-randomly oriented to form one or more patterns. Hereinafter, the present invention will be described in detail.

[Magnetic material]
The magnetic material contained in the solid cosmetic of the present invention may contain a base material and a magnetic material, or may be composed of only a magnetic material without a base material (the magnetic material is 100% by mass), for example. Only plate-shaped black iron oxide may be used. When the magnetic material contains a base material and a magnetic material, for example, the magnetic material may be a base material coated with a magnetic material, or the base material may be coated with a non-magnetic material (for example, titanium oxide). A multilayer structure may be formed on the top so as to further cover the magnetic material.

Examples of the magnetic material include iron, magnetite, hematite, neodymium, boron, nickel, cobalt, gadolinium, terbium, dysprosium, erbium, alloys and oxides thereof, for example, iron oxide (Fe ₃ O ₄ ) and the like. When the magnetic material contains a base material and a magnetic material, the magnetic material is preferably 3% by mass or more, more preferably 10% by mass or more, and further preferably 15% by mass or more with respect to the total amount of the magnetic material. .. When the magnetic material is 3% by mass or more with respect to the total amount of the magnetic material, a more three-dimensional gradation can be formed.

When the magnetic material contains a base material, the base material is preferably at least one selected from aluminum, alumina, glass, natural mica, synthetic mica, talc and silica.

When the magnetic material has, for example, a multi-layer structure, the non-magnetic material that may be contained is not particularly limited, but is not particularly limited, such as titanium oxide, red iron oxide, yellow iron oxide, silica, tin oxide, carmine, and dark blue. Can be mentioned.

The size of the magnetic material is preferably an average diameter of 0.5 to 30 μm, more preferably 2 to 20 μm. When the average diameter is 0.5 μm or more, there is a pearly feeling and a three-dimensional gradation can be formed. The average thickness of the magnetic material is preferably 0.3 μm or less, and the plate-like ratio is preferably 10: 1 to 500: 1. When the average thickness is 0.3 μm or less and the plate-like ratio is 10: 1 or more, a three-dimensional gradation can be formed.

The magnetic material may be a commercial product, such as Melk's Colorado Black Star Green, Colorado Black Star Blue, Colorado Black Star Red, Colorado Black Star Gold, Colorado Mica Black, and BASF's Cloisone Nu Antique. Rouge flambe, Chimica Nu anti-black copper and the like can be preferably mentioned.

The blending amount of the magnetic material varies depending on the composition and number of patterns, and therefore cannot be unequivocally determined, but it is preferably 0.05 to 10% by mass, more preferably 0.1 to 5% by mass, based on the total amount of the solid cosmetics. Is. When the magnetic substance is 0.05% by mass or more with respect to the total amount of solid cosmetics, a three-dimensional gradation can be formed, and when it is 10% by mass or less, the cosmetics having a good balance with the base. Can be.

(Orientation of magnetic material)
The magnetic material is non-randomly oriented to form one or more patterns. Since the base of the solid cosmetic of the present invention is transparent or opaque, the state in which the magnetic material is non-randomly oriented when viewed from the surface (outer surface) of the solid cosmetic is visually recognized as a gradation in the pattern. To.
Hereinafter, the description will be described in more detail with reference to the drawings.

FIG. 1 is a front view showing a first aspect of the solid cosmetics of the present invention, FIG. 2 is a sectional view taken along line I-I of FIG. 1, and FIG. 2 also shows an arrangement of magnetic devices for convenience. As shown in FIG. 1, the magnetic material 2 is non-randomly oriented to form a plurality of (three in FIG. 1) patterns 3. More specifically, the magnetic material 2 gradually decreases and is oriented in a predetermined direction, that is, from the bottom surface of the cosmetic (the bottom surface portion of the cosmetic corresponding to the magnet 5 arranged in the magnetic device 4 shown in FIG. 2). Pattern 3 is formed. In the first aspect, at least a part of the predetermined direction in which the magnetic material gradually decreases and orients is in the thickness direction of the cosmetic. Then, this pattern 3 is visually recognized as a deep gradation from the surface of the cosmetic (upper side of the paper surface in FIG. 1). The pattern 3 shown in FIG. 1 can be manufactured by a magnetic device 5 provided with a wavy magnet 4, but the pattern is not limited to this, and the pattern is not limited to this, and is leaf vein-shaped, diagonal line-shaped, dot-shaped, check-shaped, herringbone-shaped, and paisley-shaped. It can be a continuous pattern such as, or a single pattern such as a circle, a square, a triangle, a heart, a clover, a diamond, a spade, a star, or the like.

3 is a front view showing a second aspect of the solid cosmetic of the present invention, FIG. 4 is a sectional view taken along line II-II of FIG. 3, and FIG. 4 shows an arrangement of magnetic devices for convenience as in FIG. Also shows. In FIGS. 3 and 4, the same elements as those shown in FIGS. 1 and 2 are numbered the same, and description thereof will be omitted unless otherwise specified (the same applies hereinafter). As shown in FIG. 3, the magnetic material 2 is non-randomly oriented to form one pattern 3. More specifically, the magnetic material 2 gradually decreases and orients in a predetermined direction, that is, radially from the bottom surface of the cosmetic to form one pattern 3. Also in the second aspect, at least a part of the predetermined direction is the thickness direction of the cosmetic. Then, this pattern 3 is visually recognized as a deep gradation from the surface of the cosmetic (upper side of the paper surface in FIG. 3).

FIG. 5 is a schematic view showing a third aspect of the solid cosmetics of the present invention, and similarly to FIGS. 2 and 4, the arrangement of the magnetic device is also shown for convenience. The solid cosmetic shown in FIG. 5 is a bottle gloss in a transparent container. As shown in FIG. 5, the pattern 3 is formed on the side surface of the solid cosmetic, and the magnetic material 2 is oriented by gradually decreasing at least in the thickness direction of the cosmetic. Then, this pattern 3 is visually recognized as a deep gradation from the side surface of the cosmetic container, in other words, the outer surface of the cosmetic. As described above, in the present invention, the cosmetic surface when "the pattern is visually recognized in a gradation on the cosmetic surface" is not limited to the upper surface when the so-called cosmetic is used, and the cosmetic such as the side surface of the container. It means that it also includes the outer surface of. Although FIG. 5 shows an example of bottle gloss, it can also be applied to so-called stick-shaped solid cosmetics without a bottle.

The solid cosmetics of the first aspect and the second aspect are both provided by a magnetic device 5 provided with a magnet 4 from the bottom surface of the solid cosmetics 1, and the solid cosmetics of the third aspect are the side surfaces of the solid cosmetics 1. A magnetic field is applied by a magnetic device 5 provided with a magnet 4, but the arrangement of the magnetic device may be such that a magnetic field may be applied from a corner in the solid cosmetics of the third aspect, in which case the corner is applied. The magnetic material is radially oriented in the center and gradually decreases in the direction away from the corner. In the solid cosmetics of the first to third aspects, the embodiment in which the magnetic device is arranged on one surface of the cosmetic is shown, but the magnetic device may be arranged on a plurality of surfaces or corners. Often (for example, the magnetic devices are placed on the sides and corners in FIG. 5), such placement makes it possible to express more diverse and complex gradations.

[Base]
The base contained in the solid cosmetic of the present invention is a transparent or translucent base (also simply referred to as a transparent base in the present specification). Here, transparent or translucent is transparent in the sense generally used in the field of cosmetics as long as a magnetic substance that is non-randomly oriented from the surface of the cosmetic to form one or more patterns can be visually recognized. Includes the range from to translucent. More specifically, a cell filled with a base having an optical path length of 10 mm, cooled and solidified, is left at 25 ° C. for 1 hour, and then a spectrophotometer having a light transmittance of at least 50% at 900 nm is used. means. Since the base of the solid cosmetic of the present invention is transparent or translucent, it is possible to visually recognize a magnetic substance formed by non-random orientation to form one or more patterns from the surface of the cosmetic in a gradation pattern. can.

The base in the present invention may be in the form of only an oily component, or in an emulsified form such as a water-in-oil type or an oil-in-oil oil type containing an aqueous component, as long as it satisfies the above-mentioned requirement of transparency or translucency. .. Further, it may be colorless or colored as long as transparency can be ensured.

The viscosity of the base in the molten state by a B-type viscometer is 300,000 mPa · s or less. When the viscosity is 300,000 mPa · s or less, the movement of the magnetic material becomes good, and a three-dimensional gradation can be formed.

The base contained in the solid cosmetic of the present invention preferably contains a gelling agent.
The gelling agent is preferably a dextrin fatty acid ester, a glyceryl fatty acid ester, an amino acid gelling agent, a sucrose fatty acid ester, a fatty acid or a salt thereof, a copolymer, or a silicone wax.

The dextrin fatty acid ester is an ester of dextrin or reduced dextrin and a higher fatty acid, and can be used without particular limitation as long as it is generally used in cosmetics. It is preferable to use dextrin or reduced dextrin having an average degree of polymerization of 3 to 100. Further, as the constituent fatty acid of the dextrin fatty acid ester, it is preferable to use a saturated fatty acid having 8 to 22 carbon atoms. Specific examples thereof include dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristic acid, and (palmitic acid / 2-ethylhexanoic acid) dextrin.

The glyceryl fatty acid ester is an esterification reaction product obtained by reacting glycerin, a dibasic acid having 18 to 28 carbon atoms and a fatty acid having 8 to 28 carbon atoms (excluding dibasic acid), and is a cosmetic. Any of the commonly used ones can be used without particular limitation. Specifically, hydrogenated vegetable oil trifatty acid (C10-18) glyceryl, hydrogenated soybean polyglyceriz (C15-23) alkane, (behenic acid / isostearic acid / icosane diic acid) glyceryl, (behenic acid / icosane di). Acid) glyceryl, (behenic acid / icosane diic acid) polyglyceryl-10 and the like can be mentioned.

Amino acid gelling agents include N-lauroyl-L-glutamic acid dibutylamide (dibutyllauroyl glutamid), N-2-ethylhexanoyl-L-glutamic acid dibutylamide (dibutylethylhexanoylglutamide), polyamide-8, and polyamide-. 3 mag can be mentioned.

As the sucrose fatty acid ester, those in which the fatty acid is linear or branched, saturated or unsaturated, and has 12 to 22 carbon atoms can be preferably used. Specifically, sucrose caprylic acid ester, sucrose capric acid ester, sucrose lauric acid ester, sucrose myristic acid ester, sucrose palmitate ester, sucrose stearate ester, sucrose oleic acid ester, sucrose elca. Examples thereof include acid esters.

As the fatty acid, a fatty acid that is solid at room temperature can be used, and examples thereof include myristic acid, palmitic acid, stearic acid, behenic acid, and 12-hydroxystearic acid. Examples of the fatty acid salt include calcium salts, magnesium salts, aluminum salts and the like.

Examples of the copolymer include (ethylene / propylene / styrene) copolymer, (butylene / ethylene / styrene) copolymer and the like.

The silicone wax is not particularly limited as long as it is a raw material that can be usually blended in cosmetics, but is highly polymerized methylpolysiloxane such as highly polymerized dimethylpolysiloxane, highly polymerized methylphenylsiloxane, and highly polymerized methylvinylpolysiloxane, and highly polymerized amino-modified methyl. Examples thereof include polysiloxane, alkyl-modified silicone (for example, stearyldimethicone, alkyl (C30-C45) methicone, etc.), polyamide-modified silicone, long-chain alkoxy-modified silane (stealoxytrimethylsilane, etc.) and the like.

The blending amount of the gelling agent is preferably adjusted so that the hardness of the solid cosmetic gelled by the gelling agent is 5 gf or more. The specific blending amount can be appropriately changed depending on the type of gelling agent to be used, but is generally 2 to 20% by mass, more preferably 4 to 16% by mass, based on the total amount of the cosmetic. Further, it is 6 to 14% by mass.

The base may appropriately contain a liquid oil so that the viscosity of the B-type viscometer in the melted composition to which a magnetic field is applied is 300,000 mPa · s. The liquid oil content is not particularly limited as long as it can be thickened (gelled) by a gelling agent to form a transparent base, and is selected from the liquid oil content at room temperature (25 ° C.) normally blended in cosmetics. be able to. As a representative example, a liquid oil content selected from hydrocarbon oils, ester oils, silicone oils, and liquid fats and oils is preferably used. Specific examples are shown below, but the present invention is not limited thereto. The liquid oil component may be used alone or in combination of two or more.

Examples of the hydrocarbon oil include liquid paraffin, hydrogenated polydecene, squalane, pristane, paraffin, squalene, triethylhexanoin, α-olefin oligomer, isododecane, isohexadecane, and light isoparaffin.

As ester oils, isopropyl myristate, cetyl octanate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, Lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkylglycol monoisostearate, neopentyl glycol dicaprate, malic acid Diisostearyl, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, glycerin tri-2-ethylhexanoate, Trimethylol propane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate, glyceride tri-2-heptylundecanoic acid, methyl ester of castor oil fatty acid, oleyl oleate, acetoglyceride, 2 palmitic acid -Heptylundecyl, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipylate, ethyllaurate, di-2-ethylhexyl sebacate, 2-hexyl myristate Decyl, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, isodecyl pivalate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, triethyl citrate, tri (caprylic acid / capric acid) glyceryl, etc. Can be mentioned.

Examples of the silicone oil include chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and diphenylsiloxyphenyltrimethicone, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and hexamethylcyclotri. Examples thereof include cyclic polysiloxane such as siloxane.

Liquid fats and oils include, for example, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern ka oil, castor oil, and flaxseed oil. , Saflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, cinnamon oil, Japanese millet oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, triisopalmitic acid Glycerin and the like can be mentioned.

The blending amount of the liquid oil is not particularly limited, but is usually in the range of 20 to 99.5% by mass, preferably 50 to 90% by mass with respect to the total amount of the transparent base, depending on the form and hardness of the target cosmetic. It will be decided as appropriate.

In addition to the gelling agent and the liquid oil component, the transparent base may contain other optional components within a range that does not impair the effects of the present invention. Other optional ingredients include, but are not limited to, solid or semi-solid oils, moisturizers, aqueous ingredients, preservatives, antioxidants, UV absorbers, polymers, surfactants, dyes, dyes, pigments, defoamers. Examples thereof include agents (simeticone, etc.), various agents (tocopherol, etc.), lower alcohols (less than 6 carbon atoms), solvents, fragrances, and the like.

The solid or semi-solid oil content is not particularly limited as long as it can be blended in cosmetics.
Examples of solid fats and oils include coconut oil, palm oil, horse oil, hardened palm oil, palm oil, beef fat, sheep fat, hardened beef fat, palm kernel oil, pork fat, beef bone fat, mokurou kernel oil, hardened oil, and beef. Examples include leg fat, mokurou, and hydrogenated castor oil.

Examples of waxes include honey wax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibotarou, whale wax, monttan wax, nukarou, lanolin, capoc wax, liquid lanolin, lanolin, lanolin fatty acid isopropyl, reduced lanolin, lanolin, hard lanolin, and serrac wax. , POE lanolin alcohol ether (POE is an abbreviation for polyoxyethylene, the same applies hereinafter), POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether and the like.

Examples of the hydrocarbon oil (solid or semi-solid) include ozokerite, selecin, petrolatum, microcrystalline wax and the like.

Examples of higher alcohols include linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol and cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), 2-decyltetradecinol and lanolin. Examples thereof include branched chain alcohols such as alcohol, cholesterol, phytosterol, hexyldodecanol, and octyldodecanol.

Examples of the moisturizing agent include polyhydric alcohols and sugar alcohols, and specific examples thereof include glycols such as dipropylene glycol and 1,3-butylene glycol, glycerin, mannitol, sorbitol and the like.

[Powder]
When the solid cosmetic of the present invention further contains a powder (the powder does not contain a magnetic substance), the powder is preferably 5% by mass or less based on the total amount of the cosmetic. By setting the powder to 5% by mass or less with respect to the total amount of cosmetics, a deep three-dimensional gradation can be further emphasized.

Specific examples of the powders that can be blended include, but are not limited to, talc, kaolin, mica, silk mica (serisite), white mica, black mica, gold mica, synthetic mica, permiculite, magnesium carbonate, calcium carbonate, etc. Aluminum silicate, barium silicate, calcium silicate, magnesium silicate, metal salt of tungsten acid, magnesium, silica, zeolite, cerium oxide, zirconium oxide, tin oxide, aluminum oxide, magnesium oxide, barium sulfate, barium titanate, firing Inorganic powder of calcium sulfate, baked sekko, calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder, metal soap (zinc myristate, calcium palmitate, aluminum stearate, etc.); polyamide resin powder (nylon powder, etc.), polyethylene powder, poly Organic powders such as methyl methacrylate powder, polystyrene powder, PMMA (Poly Methyl Methacrylate) powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder; titanium oxide, zinc oxide Inorganic white pigments such as; Inorganic red pigments such as iron oxide (Bengala) and iron titanate; Inorganic brown pigments such as γ-iron oxide; Inorganic yellow pigments such as yellow iron oxide and ocher; Black iron oxide Inorganic black pigments such as carbon and low-order titanium oxide; inorganic purple pigments such as mango violet and cobalt violet; inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate, and inorganic blue such as ultramarine and dark blue. System pigments; pearl pigments such as titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, colored titanium oxide-coated mica, bismuth oxychloride, fish scale foil; metal powder pigments such as aluminum powder and copper powder; red 202 Organic pigments such as No., Red No. 205, Red No. 220, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, Blue No. 404; Red No. 3, Red No. 104, Organic pigments such as zirconium, barium, aluminum lake such as red 227, red 401, orange 205, yellow 4, yellow 202, green 3 and blue 1; natural pigments such as chlorophyll and β-carotene. Can be mentioned.
The powder may be used alone or in combination of two or more.

(Physical characteristics of solid cosmetics)
The solid cosmetic of the present invention preferably has a melting point or heat transition temperature of more than 25 ° C. and a hardness of 5 gf or more. Depending on the composition, the melting point or heat transition temperature is higher than 25 ° C., and the hardness is 5 gf or more, so that the cosmetic can be solidified and the transferred magnetic material can be better retained. Can be. The melting point or heat transition temperature of the solid cosmetic may be more preferably in the range of 25 to 200 ° C., more preferably 30 to 200 ° C., and particularly 45 to 200 ° C. The hardness may be more preferably in the range of 15 to 6000 gf, and further may be in the range of 30 to 6000 gf.

Here, the melting point or the thermal transition temperature can be measured with a differential scanning calorimeter (DSC). The hardness is the entry hardness when the leometer adapter is immersed in the sample (solid cosmetics). At a measurement temperature of 25 ° C, an 11.3 mmφ adapter is inserted into the sample from above at a speed of 20 mm / min to 3 mm. It is the peak value (unit: gf) of the stress when it is made to enter.

(Manufacturing method of solid cosmetics)
The method for producing a solid cosmetic product of the present invention will be described by taking as an example a solid cosmetic product in which a middle plate is provided in a container and the composition is composed of a magnetic substance and a transparent base. First, the magnetic material and the transparent base are mixed. The mixed composition is melted and the melted composition is filled in the inner dish of the container. A magnetic field is applied to the molten composition from the bottom of the inner pan. At this time, the viscosity of the molten composition (melted state) is in the range of 10 to 300,000 mPa · s (B-type viscometer), preferably in the range of 10 to 200,000 mPa · s, and further in the range of 10 to 100,000 mPa · s. Is desirable. When the viscosity of the melt composition is in the range of 10 to 300,000 mPa · s, the movement of the magnetic material becomes good, and a three-dimensional gradation can be formed. The application of a magnetic field causes the magnetic material to be non-randomly oriented to form one or more patterns. The solid cosmetic of the present invention can be produced by solidifying the molten composition by leaving it to stand or cooling it in a state where a magnetic field is applied.

The magnetic field melts the mixed composition and when the base is in a molten state, the bottom surface of the container (position of the magnetic device 4 in FIGS. 2 and 4), the side surface (position of the magnetic device 4 in FIG. 5), or the container. Apply from a corner or the like. By bringing a magnet having a shape corresponding to the pattern to be obtained close to the base in a molten state, the magnetic material can be non-randomly oriented to form one or more patterns. The position of the magnetic device that generates the magnetic field can be adjusted so as to obtain a desired pattern. As the magnetic field, a rubber magnet, a sintered magnet, an electromagnet, or the like having a surface magnetic flux density of 100 to 50,000 gauss can be used. The application time of the magnetic field varies depending on the blending amount and type of the magnetic material, the strength of the magnetic field, and the like, but the application may be terminated when a desired gradation is formed and the gradation is solidified. The application time cannot be unequivocally stated, but is preferably in the range of 1 second to 10 minutes.

The product form of the cosmetic product of the present invention is not particularly limited, and examples thereof include solid cosmetic products such as lipstick, lip gloss, and eye shadow.

Next, the present invention will be described in more detail with reference to examples. The present invention is not limited to the following examples.

[Examples 1 to 17, Comparative Examples 1 and 2]
With the formulations shown in Tables 1 and 2, the magnetic material, the base and (with the coloring material if included) were mixed and the mixed composition was melted at 100 ° C. A magnetic device equipped with an electromagnet having a surface magnetic flux density of 5000 gauss was placed on the bottom surface of the inner plate (aluminum) of the cosmetic container. After filling the middle dish with the melt composition, a magnetic field was applied for 60 seconds. A solid cosmetic was obtained by cooling the molten composition in a state where a magnetic field was applied.

(Measurement of base viscosity)
For the bases of the formulations shown in Tables 1 and 2, the viscosity in the molten state (100 ° C.) was measured by a VDA type viscometer (DIGITAL VISMETRON VDA, Shibaura System Co., Ltd.), rotor No. 6. The measurement was performed under the conditions of a rotation speed of 10 rpm and 1 minute.

(Evaluation of three-dimensional effect)
The produced solid cosmetics were evaluated according to the following criteria by observing the pattern formed by the magnetic material.
AA: A clear three-dimensional gradation can be seen A: A three-dimensional gradation can be seen B: A blurred three-dimensional gradation can be seen C: A gradation cannot be seen

The evaluation results are shown in Tables 1 and 2 together with the prescription.
The details of the product names of the raw materials in the table are as follows.
-Iron oxide / Mica * 1: Colorona Black Star Red (black iron oxide 0.52) (manufactured by Merck)
-Iron oxide / Mica * 2: Colorona Black Star Gold (black iron oxide 0.44) (manufactured by Merck)
・ Mica / Titanium oxide / Iron oxide * 3: Chimika Nu Antik Silver (iron oxide content 0.15) (manufactured by Engelhard Corporation)
-Mica / Titanium oxide / Iron oxide * 4: Gemtone amber (iron oxide content 0.10) (manufactured by BASF Corporation)
・ Mica / Titanium oxide / Iron oxide * 5: Timica Brilliant Gold (iron oxide content 0.03) (manufactured by BASF Corporation)
-Iron oxide / mica / titanium oxide * 6: Cloisone Nu anti-cruge F (black iron oxide 0.15) (manufactured by Merck)

Examples 1 to 5 in Table 1 have different types of magnetic materials, and Examples 6 to 1 have different amounts of coloring materials, but all of Examples 1 to 7 have a three-dimensional effect. A certain gradation was obtained. On the other hand, in Comparative Example 1, since the coloring material (powder) is 5% by mass with respect to the total amount of the cosmetic, the transparency of the cosmetic is lowered (the transparency is even worse than the translucent state) from the surface of the cosmetic. I couldn't see the gradation. In Examples 8 to 11 of Table 2, the blending amount of the magnetic substance was changed, and in Examples 12 to 2 were changed in the melt viscosity, but in Examples 8 to 17, all of them had a three-dimensional gradation. was gotten. On the other hand, in Comparative Example 2, since the viscosity of the base when melted is 398,000 mPa · s, the magnetic material is difficult to move even when a magnetic field is applied, the magnetic material cannot form a pattern, and the gradation cannot be seen from the surface of the cosmetic. rice field.

[Examples 18 to 20 and Comparative Example 3]
Solid cosmetics were obtained in the same manner as in Example 1 with the formulations shown in Table 3. The hardness of the obtained cosmetics was measured and the three-dimensional effect was evaluated. The hardness was measured as follows.

(Measurement of hardness)
With respect to the cosmetic obtained above, a stress peak value (unit: gf) was measured by inserting an adapter of 11.3 mmφ into the sample from above at a speed of 2 cm / min at a measurement temperature of 25 ° C.

As shown in Table 3, in Examples 18 to 20, a three-dimensional gradation was obtained, but in Comparative Example 3, the gradation could not be maintained because the base after solidification was soft (not solid). ..

[Example 21]
The magnetic material and the base were mixed according to the formulations shown in Table 4, and the mixed composition was melted at 200 ° C. A magnetic device equipped with an electromagnet having a surface magnetic flux density of 5000 gauss was placed on the side surface of a stick-shaped molding die (aluminum). After filling the mold with the melt composition, a magnetic field was applied for 300 seconds. A stick-shaped solid cosmetic was obtained by cooling the molten composition in a state where a magnetic field was applied. In the obtained cosmetics, a three-dimensional gradation was visually recognized from the side surface.

1 Solid cosmetics 2 Magnetic material 3 Pattern 4 Magnetic device 5 Magnet

Claims

A solid cosmetic containing a magnetic substance and a base.
The base is transparent or translucent and
A solid cosmetic product in which the magnetic material is non-randomly oriented to form one or more patterns.
The solid cosmetic according to claim 1, wherein in the pattern, the magnetic material gradually decreases and is oriented in a predetermined direction, and the pattern is visually recognized in a gradation on the surface of the cosmetic.
The solid cosmetic according to claim 2, wherein the predetermined direction is the thickness direction of the cosmetic.
The solid cosmetic according to claim 1, 2 or 3, wherein the melting point or the heat transition temperature is larger than 25 ° C. and the hardness is 5 gf or more.
The solid cosmetic according to any one of claims 1 to 4, wherein the base contains a gelling agent.
The gelling agents are dextrin palmitate, dibutyllauroylglutamide, dibutylethylhexanoylglutamide, polyamide-8, hydrogenated vegetable oil trifatty acid (C10-18) glyceryl, and hydrogenated soybean polyglyceriz (C15-23). The solid cosmetic according to claim 5, which is at least one selected from alkanes, (ethylene / propylene / styrene) copolymers, and (butylene / ethylene / styrene) copolymers.
The solid cosmetic according to any one of claims 1 to 6, further comprising a powder, wherein the powder is 5% by mass or less based on the total amount of the cosmetic.
The solid cosmetic according to any one of claims 1 to 7, wherein the magnetic material contains a base material and a magnetic material, and the magnetic material is 3% by mass or more with respect to the total amount of the magnetic material.
The solid cosmetic according to claim 8, wherein the base material is at least one selected from aluminum, alumina, glass, natural mica, synthetic mica, talc and silica.
A composition containing a magnetic material and a transparent or translucent base is mixed, the mixed composition is melted, and a magnetic field is applied to the molten composition to orient the magnetic material in a non-random manner. Alternatively, a method for producing a solid cosmetic that solidifies after forming a plurality of patterns, wherein the viscosity of the B-type viscometer of the melt composition is 300,000 mPa · s or less.