JP2875600B2 - Cosmetics containing a coloring base with excellent covering power - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a cosmetic containing a coloring base, mainly a make-up cosmetic.

[Prior art] Conventional cosmetics, for example, make-up cosmetics, include talc, titanium oxide, mica, kaolin,
White pigments such as zinc oxide and magnesium carbonate and coloring pigments such as iron oxide, carbon black and lake pigments, and dyes;
Oils, fats, emulsifiers, fragrances, etc. are appropriately blended to make cosmetics such as white powder, solid white powder, emulsion type foundation, water dispersion type foundation, oil dispersion type foundation, lipstick and the like.

[Problems to be Solved by the Invention] However, these cosmetics obtained by blending as described above cause skin troubles (stains, freckles, nevus, etc.) in a natural form (thickening, whitening). It is difficult to cover it without any discomfort such as This is a well-known fact. That is, as a cosmetic base used in conventional cosmetics to increase the covering power, for example,
There are titanium dioxide, zinc white, etc.
%, Its hiding power is not enough,
Those that are 100% used can no longer be used as cosmetics.

An object of the present invention is to provide a cosmetic that solves the above-mentioned problems of the prior art.

[Means and Actions for Solving the Problems] According to the present invention, the following objects can be achieved by the following cosmetics.

Aluminum particles and pigment particles coating the aluminum particles, the pigment particles containing at least a white inorganic pigment, and a coloring group fixed to the aluminum particles by a binder formed by a water-soluble or oil-soluble polymer. Cosmetics made by blending agents.

 The coloring base may be subjected to a water-repellent treatment.

The coloring base compounded in the cosmetic of the present invention comprises aluminum particles and pigment particles covering the aluminum particles. The pigment particles contain at least a white inorganic pigment and are formed of a water-soluble or oil-soluble polymer. Since the particles are fixed to the aluminum particles by a binder, they are excellent in covering power, adhesion power, spreadability, coloring power and hiding power. Since the cosmetic of the present invention contains the coloring base, skin problems such as spots, freckles, nevus and the like can be naturally caused (uncomfortable feeling such as thickening, steps, and whitening). No condition).

Since the aluminum particles are covered with at least pigment particles containing a white inorganic pigment (hereinafter, referred to as "pigment particles") and have no metallic luster, the above problem does not occur even if a predetermined amount of the aluminum particles is blended as a cosmetic. .

First, the basic idea of completing the present invention will be outlined below.

As a result of searching for a cosmetic base having good spreadability and high covering power to solve the problems of the conventional cosmetics,
We focused on aluminum powder. However, when a cosmetic using aluminum powder itself as a base is applied, the coating power, hiding power, spreadability, and adhesion are good, but the metallic luster is strong, the dullness peculiar to the metal occurs, and the whiteness is lacking. Practical application is difficult. In order to erase the color of the aluminum powder itself, it is necessary to further apply a skin color cosmetic thereon. In this case, in order to eliminate the aluminum powder color, it is necessary to apply a large amount of a dark skin color cosmetic, thereby resulting in a multi-layered structure, giving a sense of incongruity due to the thickness. Also, no matter how much the coating is applied, the surface of the aluminum powder itself is exposed, so that dullness occurs due to friction or aging. Furthermore, there is a drawback such that adhesion is not obtained depending on the skin color cosmetic applied on the top.

Accordingly, as a result of intensive studies on coating each of the aluminum powder particles with white inorganic pigment particles such as titanium oxide, the present invention has been completed.

Preferred Embodiment Coloring Base The coloring base is composed of aluminum particles and pigment particles covering the aluminum particles, the pigment particles including at least a white inorganic pigment, and formed of a water-soluble or oil-soluble polymer. Is fixed to the aluminum particles by a binder.

The preferred diameter of the aluminum particles is 5 to 50 μm (more preferably 5 to 20 μm).

The pigment particles are pigment particles containing at least a white inorganic pigment. The white inorganic pigment particles may be used alone or may be a combination of white inorganic pigment particles and colored inorganic pigment particles or organic pigment particles. Surface treatment or the like may be performed accordingly. In order to suppress the metallic luster on the surface of the aluminum particles, the content of the white inorganic pigment contained in the pigment particles is preferably 50% by weight or more. White inorganic pigments are composed of colorless inorganic compounds having a high refractive index, such as titanium oxide (including those coated with fatty acids),
There are zinc oxide, talc, mica, mica titanium and the like, but titanium oxide is preferred in terms of hiding power.

The colored inorganic pigment contains a colored transition element and the like. For example, V, Cr, Mn, Fe, Co, Ni, Cu, Mo, W, Hg, Pd, Sb, S,
It comprises at least one of Se, Sn and the like. In particular,
There are yellow iron oxide, iron sesquioxide, iron sesquioxide and the like.

Examples of organic pigments include tar pigments such as Red No. 202, Red No. 204, Yellow No. 401, and Orange No. 203.

The diameter of the pigment particles should be at least as large as it can cover the aluminum particles, but for fine and uniform coating, the smaller the particle size, the better, preferably 0.01 to 5.0 μm.
(More preferably 0.01 to 0.5 μm). When the pigment is titanium oxide, fine particles of titanium oxide are preferably used for aluminum particles having a particle size of about 5 to 10 μm (preferable particle size).
0.01 to 0.10 μm). For aluminum particles with a particle size of about 10 to 50 μm, titanium oxide with a particle size of more than 1.0 μm may be used.
Fine particles of about 0.05 μm or less are used.

The binder formed by a water-soluble or oil-soluble polymer (hereinafter referred to as "soluble polymer") is sufficient if the amount is such that the pigment particles can be fixed to the aluminum particles. The pigment particles are coated with a binder formed by the soluble polymer and can adhere to the aluminum particles.

The binder formed by the soluble polymer can be formed by drying a solution (or an emulsion, if desired) in which the soluble polymer is dissolved or dispersed in a solvent. By appropriately selecting the polymer and the dispersion medium, the binder may be formed by both a water-soluble polymer and an oil-soluble polymer.

The soluble polymer is, for example, one or more of styrene maleic anhydride copolymer resin, polycarbonate resin, polyacrylic resin, styrene resin, styrene / octyl acrylate copolymer resin, vinyl acetate resin, methyl cellulose, ethyl cellulose, polyvinyl alcohol, and the like. Is good.

Further, the coloring base is subjected to a water-repellent treatment with a water-repellent agent, so that a makeup cosmetic comprising the treated coloring base is mixed with the water repellency and the adhesion to the skin. Improvement can be achieved.

Examples of the water repellent used in such a case include higher fatty acids such as lauric acid, myristic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, undecylenic acid, lanolinic acid, tall oil, isostearic acid, dimer Acids and the like, and silicone oils such as methylhydrogenpolysiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, and structural analogs thereof, and the like, are used as one kind or as a mixture of two or more kinds.

As a specific water repellent treatment method, a coloring base is dissolved in a solution obtained by dissolving a water repellent in a volatile organic solvent, for example, acetone, ethyl acetate, isopropanol, ethanol or the like in an amount of about 0.1 to 20% by weight. After stirring for about 5 minutes to 2 hours, the solvent is heated and volatilized, if necessary, with stirring, and the surface of the colored base is 1 to 10 μm.
Cover the film formed with a water-repellent agent of about m. Alternatively, when the water-repellent agent is only higher fatty acids, uniformly mix 0.1 to 20% by weight of higher fatty acids with the coloring base. After that, if the pressure is reduced to a vacuum state and the mixture is agitated at 60 to 120 ° C., coating with a film formed by the same water repellent as described above can be performed. However, when selecting a solvent, it is necessary to select a solvent that does not dissolve the binder in the coloring base.

Method for producing coloring base The coloring base is obtained by dispersing pigment particles containing at least a white inorganic pigment onto a water-soluble or oil-soluble polymer by adsorption and polymer-coated pigment particles and aluminum particles in a dispersion medium. The dispersion medium mixture can be produced by atomization and drying. According to this production method, since the polymer-coated pigment particles are uniformly coordinated on the surface of the aluminum particles, aggregation of the aluminum particles is less likely to occur, and the coloring base can be efficiently produced.

The dispersion medium mixture is composed of polymer-coated pigment particles and aluminum particles dispersed in a dispersion medium. The polymer-coated pigment particles are obtained by adsorbing a water-soluble or oil-soluble polymer onto pigment particles containing at least a white inorganic pigment and coating the polymer particles with the pigment particles.

The dispersion medium mixture is obtained by dispersing or dissolving pigment particles and a soluble polymer (which may be in an emulsion state if desired) in a dispersion medium to obtain a pigment paste (polymer-coated pigment particles). It can be obtained by uniformly mixing (in some cases, mixing the pigment particles again here).

The dispersion medium may be one in which aluminum particles and pigment particles are dispersed and soluble polymer is dissolved (soluble polymer may be an emulsion), and may be appropriately selected according to pigment particles and soluble polymer.
A volatile dispersion medium is preferably used so as to be easily dried after atomization. Depending on the types of the water-soluble polymer and the oil-soluble polymer, a dispersion medium that dissolves both of them may be used.

Examples of the volatile dispersion medium include toluene, xylene, methyl ethyl ketone, methanol, ethanol, propyl alcohol, benzene, methylene chloride, perchrene (tetrachloroethylene), methyl isobutyl ketone, and water.

When dispersing or dissolving the pigment particles and the soluble polymer in the dispersion medium, a surfactant or methyl isobutyl ketone may be added. The surfactant can satisfactorily disperse the pigment particles and the aluminum particles in the dispersion medium, and can modify the surface of the obtained coloring base. Methyl isobutyl ketone can change the polarity of the dispersion medium to disperse pigment particles and aluminum particles in the dispersion medium well.

Aluminum particles that have been treated with a fatty acid coating or the like may be used. When an organic solvent is used as the dispersion medium, the intended coloring base can be obtained although the coating layer may be dissolved.

In order to disperse or dissolve pigment particles and a soluble polymer in a dispersion medium, a ball mill, a coball mill, a dyno
Any of wet dispersion using a mill or the like, liquid dispersion using a vessel and a disperser, and dry dispersion using a Henschel mixer may be used, but preferably a wet or liquid dispersion method is used.

In order to uniformly mix the aluminum particles, the pigment paste, and the dispersion medium, any of the wet, liquid, and dry dispersion methods can be used, but a wet or liquid dispersion method is preferably used.

The composition of the pigment paste can be a dispersion medium of 10 to 50% by weight (hereinafter,%), pigment particles of 10 to 85%, and a soluble polymer of 2 to 15%.

The weight ratio of aluminum particles: pigment particles: soluble polymer: dispersion medium in the dispersion medium mixture is, for example, 2: 7: 1:
Can be 5-20.

The dispersion medium mixture is atomized using an atomizing device such as a spray nozzle, and can be dried by being retained in a medium flow such as heated air or nitrogen. Alternatively, the dispersion medium mixture may be atomized and dried by passing the dispersion medium mixture through a tube heated to, for example, about 30 to 300 ° C. in a reduced-pressure or vacuum state. The former method can be performed by using, for example, a spray dryer or the like, and the latter method can be performed by using, for example, a CRUX system manufactured by Hosokawa Micron Corporation.

Cosmetic The cosmetic of the present invention comprises the above-mentioned coloring base and can be used mainly as a makeup cosmetic. When used as a makeup cosmetic,
Depending on the type and use, it may be composed of only a coloring base, and may be composed of one or more of inorganic powder, organic powder, pigment, oil and water in addition to the coloring base. You can also Furthermore, surfactants, moisturizers, ultraviolet absorbers, preservatives, antioxidants, fragrances, and other commonly used cosmetics may be added as necessary.

Make-up cosmetics include base make-up and point make-up. The cosmetics of the present invention are made by blending the above-mentioned coloring base, and particularly require a covering power (covering power) for stains, freckles, nevus and the like. Since it is effective as a cosmetic, it is suitable as a base makeup.

The base make-up includes base materials such as under-make-up, foundations such as liquid foundation, emulsification-type foundation, oil gel-type foundation and powder foundation, and finishing materials such as loose powder and pressed powder. Point makeup includes eye makeup such as eye color, eye liner, eyebrow and mascara, cheek color and lip color.

The compounding ratio of the coloring base in various makeup cosmetics is as follows.

In the case of under makeup or liquid foundation, it can be blended up to about 25% by weight due to its dosage form or feeling of use (ease of use, etc.).
0 to 20% by weight is blended.

In the case of an emulsion type foundation, it can be blended up to about 35% by weight, preferably 15 to 30% by weight, due to its dosage form or feeling of use (ease of use).

In the case of an oil gel type foundation (dispersion type of oil, wax, etc. in the oil phase), the relationship between the dosage form and the feeling of use (restrictions on the manufacturing method, moldability, removal into puff, color tone control, etc.) % By weight, preferably 40 to 70% by weight.

In the case of powder foundation and pressed powder, it can be blended up to 100% by weight, but its dosage form or feeling of use (puff removal, moist feeling, adhesion, makeup, color control, moldability, oil coating, etc.) Taking into account the relationship (2), it can be blended up to about 95% by weight, preferably 80 to 90% by weight.

In the case of a loose powder-like foundation, up to 100% by weight of a coloring base can be incorporated, and the coloring base is coated with a small amount of oil (for example, 1 to 7% by weight of the blended coloring base). Adhesiveness is improved by blending them. A preferred coloring base compounding ratio is 90.
~ 96% by weight.

Inorganic powders, organic powders, pigments and oils that can be blended in addition to the coloring base are as follows.

Average particle size 1.0-20μ as inorganic powder and organic powder
m is preferable, and there is no particular limitation as long as it is used for cosmetics.
Kaolin, sericite, muscovite, synthetic mica, phlogopite, mica, biotite, lithia mica, vermiculite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate, calcium silicate, aluminum silicate, barium silicate , Strontium silicate, metal tungstate, α-iron oxide, hydrated iron oxide, silica, hydroxyapatite, and the like. Organic powders include acrylic resin, polyethylene, nylon, Teflon, and polystyrene. In order to obtain a remarkable effect on lightness, spreadability, and prevention of caking, it is preferable to select and use spherical ones as appropriate.

Pigments having an average particle size of 0.01 to 10 μm are preferable, and inorganic white pigments such as titanium oxide and zinc oxide, inorganic red pigments such as iron oxide (petal oxide) and iron titanate, iron oxide yellow,
Inorganic yellow pigments such as loess, inorganic purple pigments such as mango violet and cobalt violet, inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; inorganic blue pigments such as ultramarine blue and navy blue; Pearlescent pigments such as titanium mica, titanium oxide coated bismuth oxychloride, bismuth oxychloride, titanium oxide coated barium sulfate, titanium oxide coated talc, fish phosphor foil, colored titanium oxide coated mica, aluminum powder, copper powder, etc. And the like metal powder pigments.

These inorganic powders, organic powders, and pigments are used in an auxiliary manner for the coloring base, and therefore, their respective blending amounts are set in relation to the amount of the coloring base to be used.

The oil agent may be any oil agent that can be applied to cosmetics, such as squalane, liquid paraffin, vaseline, microcrystalline wax, ozokerite, ceresin, myristic acid, palmitic acid, stearic acid, oleic acid,
Isostearic acid, cetyl alcohol, oleyl alcohol, 2-octyl dodecyl myristate, 2-octyl dodecyl gum ester, 2-octyl dodecyl aviate, 2-octyl dodecyl oleate, isopropyl myristate, isostearic acid triglyceride, coconut oil triglyceride, Various hydrocarbons such as olive oil, avocado oil, beeswax, myristyl myristate, orica oil, mink oil, and lanolin, higher fatty acids, oils and fats, higher alcohols, waxes, and the like are selected and used.

[Examples] Production examples of the coloring base are shown in Production Examples 1 to 4 below.

Production Example 1 140 parts of fine particle titanium oxide (0.01 to 0.1 μm), octyl acrylate / styrene copolymer (soluble polymer) 14
Parts, 100 parts of polypropyl alcohol and 1 part of methyl isobutyl ketone were placed in a wet ball mill and mixed and dispersed for 24 hours to obtain a pigment paste.

Next, 2000 parts of a mixed solvent of propyl alcohol / methyl isobutyl ketone = 9/1, 200 parts of the above-mentioned pigment paste, 20 parts of aluminum powder (5 to 15 μm), and 300 parts of titanium oxide (0.5 to 5 μm) were placed in a wet dispersing machine. Then, the mixture was sufficiently stirred and dispersed to form a dispersion medium mixture, and the dispersion medium mixture was sprayed and dried at 130 to 150 ° C. with a spray drier to obtain a desired coloring base.

Production Example 2 130 parts of fine particle titanium oxide (0.01 to 0.1 μm), 10 parts of iron oxide (0.1 to 0.5 μm), 14 parts of octyl acrylate / styrene copolymer (soluble polymer), propyl alcohol
100 parts and 1 part of methyl isobutyl ketone were put into a wet ball mill and mixed and dispersed for 24 hours to obtain a pigment paste.

Then, in a wet disperser, 2000 parts of a mixed solvent of propyl alcohol / methyl isobutyl ketone = 9/1, 200 parts of the above-mentioned pigment paste, 20 parts of aluminum powder (5 to 15 μm), 323 parts of titanium oxide (0.5 to 5 μm), 16 parts of iron oxide and 1 part of ultramarine blue are added, and the mixture is sufficiently stirred and dispersed to form a dispersion medium mixture. The dispersion medium mixture is sprayed and dried at 130 to 150 ° C. with a spray drier to obtain a desired coloring base. Was.

Production Example 3 130 parts of fine particle titanium oxide (0.01 to 0.1 μm), 10 parts of iron oxide (0.1 to 0.5 μm), 14 parts of octyl acrylate / styrene copolymer (soluble polymer), propyl alcohol
100 parts and 1 part of methyl isobutyl ketone were put into a wet ball mill and mixed and dispersed for 24 hours to obtain a pigment paste.

Then, in a wet disperser, 2000 parts of a mixed solvent of propyl alcohol / methyl isobutyl ketone = 9/1, 200 parts of the above-mentioned pigment paste, 20 parts of aluminum powder (5 to 15 μm), 270 parts of titanium oxide (0.5 to 5 μm), Spherical acrylic powder (8
10 parts), 20 parts of mica, 25 parts of mica titanium, and 17 parts of iron oxide (0.1 to 0.5 μm) were sufficiently stirred and dispersed to form a dispersion medium mixture. Spraying and drying at ~ 150 ° C gave the desired colored base.

Production Example 4 90 parts of fine particle titanium oxide (0.01 to 0.1 μm), 40 parts of zinc oxide (0.01 to 0.1 μm), and iron oxide (0.1 to 0.5 μm) 5
Parts, 15 parts of a vinyl acetate polymer (soluble polymer), 80 parts of benzene, and 20 parts of toluene were placed in a wet ball mill and mixed and dispersed for 24 hours to obtain a pigment paste.

Next, 2,000 parts of toluene, 200 parts of the above-mentioned pigment paste, and 25 parts of aluminum powder (5 to 15 μm) were placed in a liquid dispersing machine, and sufficiently stirred and dispersed to form a dispersion medium mixture. And dried at 150-180 ° C to obtain the desired colored base.

(Measurement of covering power) The covering power of the coloring base was measured by the following hiding power test, colorimetric test and light transmittance test.

(1) Opacity test <Sample> 1 part of the coloring base obtained in Production Example 1 is well kneaded with 4 parts of castor oil, and opacity measurement paper (JIS-K5400, manufactured by Taiyo Kiki Co., Ltd.) using a doctor blade. Was applied to a thickness of 5 mils as a sample.

Instead of the coloring base, the following comparative bases (a) to (f)
Comparative Samples (a) to (f) corresponding to the respective comparative bases were obtained in the same manner as described above except that each of the above was used.

Comparative base (a): aluminum particles (particle size: 5 to 15 μm) alone Comparative base (b): 1 part by weight of aluminum particles (particle size: 5 to 15 μm) and 7 parts by weight of fine titanium oxide particles (particle size: 0.01 to 0.1 μm) Mixture with 1 part by weight Comparative base (c): Mixture of 1 part by weight of aluminum particles (particle size: 5 to 15 μm) and 15 parts by weight of titanium oxide (particle size: 0.5 to 5 μm) Comparative base (d): Aluminum particles (particles) A mixture of 1 part by weight of 5 to 15 μm in diameter, 7 parts by weight of fine particle titanium oxide (particle diameter of 0.01 to 0.1 μm) and 15 parts by weight of titanium oxide (particle diameter of 0.5 to 5 μm) Comparative base (e): fine particle titanium oxide ( Comparative particle (f): titanium oxide (particle size: 0.5 to 5 μm) <Evaluation method> Returned light among the reflected light (irregular reflection) of each sample is visually judged. That is, the blackness of the opacity measuring paper
The evaluation was made at a rate at which a white border was visible. The case where no boundary was visible was set to 10, and the case where the black and white original ground itself was visible was set to 0.

<Results> Sample using the colored base of Production Example 1 ... 8 Opacity comparison sample (a) ... 10 Opacity comparison sample (b) ... 4 Opacity comparison sample (c) ... 6 Opacity comparison sample (d) 5) Hiding power comparison sample (e) ... 1 Hiding power comparison sample (f) ... 3 The coloring base of the present invention has a slightly lower hiding power than aluminum particles alone, but is usually mixed with titanium oxide or the like. It had a higher hiding power than the product and did not show any metallic luster peculiar to aluminum.

(2) Colorimetric test <Sample> One part of the coloring base obtained in Production Example 3 was well kneaded with 4 parts of castor oil, and opacity measurement paper (JI
S-K5400 (manufactured by Taisuke Kiki Co., Ltd.) with a thickness of 5 mils was used as a sample.

As a comparative base, commercially available powder foundations, Polar D & D Powder Foundation (Comparative Base <A>) and Polar Rejunoal Powder Foundation (Comparative Base <B>) were used.

<Evaluation Method> Using a colorimeter, the L value, a value, and b value (Hunter Lab color system) in the white portion and the black portion of the opacity measurement paper were measured.

<result> According to Table 1, it can be seen that the coloring base according to the present invention has substantially the same lightness (L value) in both the white part and the black part, and has excellent covering power (covering power). In addition, it can be seen that the coloring base can be used simply as it is as a cosmetic.

(3) Light transmittance test <Sample> 1 part of the coloring base obtained in Production Example 3 was well kneaded with 4 parts of castor oil, and the mixture was applied to a quartz glass plate using a doctor blade.
The sample applied at a thickness of 5 mils was used as a sample. Further, a sample was obtained in the same manner as described above except that 50% by weight of the coloring base was replaced with the comparative base <B>.

Light transmission comparative samples <AA> and <BB> corresponding to each comparative base were obtained in the same manner as above except that the comparative bases <A> and <B> were used instead of the coloring bases. .

<Evaluation method and results> The light transmittance of each sample was measured using a spectrophotometer UV-240 manufactured by Shimadzu Corporation. The result is shown in FIG. FIG. 1 shows the following.

The light transmittance of the comparative sample <AA> is 20% or more in a region having a light wavelength of 300 nm or more, and is about 60% or more in a region of 340 nm or more.

The light transmittance of the comparative sample <BB> is 10% or more in the region of the light wavelength of 300 nm or more, 30% or more in the region of 330 nm or more, and about 40% or more in the region of 400 nm or more.

On the other hand, the light transmittance of the sample using the coloring base obtained in Production Example 3 is about 3% or less. Also, 50% by weight of the comparative base <B> and 50% by weight of the coloring base obtained in Production Example 3.
The light transmittance of the sample using the mixture of the above is about 10% or less.

Therefore, it is understood that the coloring base hardly transmits light from the visible part to the ultraviolet part.

Next, examples of cosmetics manufactured by blending the coloring bases manufactured in the above manufacturing examples will be described. In addition, each of the following cosmetics was manufactured in the same manner as each conventional cosmetic manufacturing method except that a part or all of the conventional cosmetic base was replaced with the coloring base of the present invention.

Example 1 Oil gel type foundation Colored base (Production Example 2) 70 (parts by weight) Candelilla wax 1.5 Carnauba wax 0.5 Microcrystalline wax 1 Tri-2-ethylhexanoic acid glycerin 21 Dimethyl polysiloxane 4 1,3-butylene glycol 2 Antioxidant Appropriate amount Preservative Appropriate amount Fragrance Appropriate amount Example 2 Loose powder (white powder) Coloring base (Production example 1) 49 (parts by weight) Talc 33 Spherical calcium silicate 4 Mica 1.5 Mica titanium 6 Iron oxide 0.3 Ultramarine blue 0.02 Glycerin tri-2-ethylhexanoate 2 Dimethylpolysiloxane 2 Cetyl octanoate 2 Antioxidant Suitable amount Preservatives Suitable amount Fragrance Suitable amount Example 3 Oil gel type foundation Coloring base (Production example 3) 70 (parts by weight) Can Delila Wax 1.5 Carnauba Wax 0.5 Microcrystalline Wax 1 Glycerin tri-2-ethylhexanoate 21 Dimethylpolysiloxane 4 Glycerin 2 Antioxidant Appropriate amount Preservative Appropriate amount Fragrance Appropriate amount Example 4 Powder foundation Coloring base (Production example 3) 43.8 (parts by weight) Talc 6.5 Titanium oxide 14.0 Silica Beads 5.5 Mica 8.0 Mica Titanium 7.0 Iron oxide 2.7 Ultramarine 0.1 Glycerin tri-2-ethylhexanoate 4.5 Dimethyl polysiloxane 4.0 Glycerin isostearate 4.0 1,3-butylene glycol 0.1 Preservatives Appropriate Antioxidant Appropriate Fragrance Appropriate Example 5 Lipstick squalane 4.6 (parts by weight) Candelilla wax 8.8 Liquid lanolin 28 Diisostearyl malate 10 Isopropyl myristate 24 Colored base (Production Example 4) 10 Tar dye paste 14.6 Antioxidant Appropriate amount Perfume Appropriate amount (cosmetics) Evaluation as a raw material) Cosmetics and conventional cosmetics of the force) test <Evaluation Method> In the present invention, the following (a) ~
The coating was performed as in (d), and the usability, finish, covering power and stacking were evaluated.

(A) The oil gel type foundation of Example 1 is applied to nevus Ota.

(B) After the above (a), a general finishing material (loose powder) is further applied and applied to form two layers.

(C) After (a), the colored base obtained in Production Example 2 is further applied to form two layers.

(D) A base material containing aluminum powder (conventional product) is applied to the nevus of Ota, and a general foundation is further applied to the applied surface to form a two-layered structure.

<Results> Table 2 shows the results of evaluating each of the above (a) to (d) in terms of usability, finish, covering power, and stacking. According to (a) to (c) in Table 2, it can be seen that the cosmetic of the present invention can cover the Ota mother point with a natural finish, is easy to use, and is easy to overlap. On the other hand, in the case of (d) in which the cosmetic of the present invention is not used,
Despite the covering power, there is a problem that the cosmetic is thickly applied and a step is formed, and the usability and the stacking are troublesome.

The reason why the colored base obtained in Production Example 2 was used was as follows.
This is because it can be used as a finish (loose powder) itself.

[Effects of the Invention] The coloring base contained in the cosmetic of the present invention is such that the aluminum particles are coated with the pigment particles fixed to the aluminum particles via the binder formed by the soluble polymer. Excellent covering power, adhesion power, spreadability, coloring power and hiding power.

Since the cosmetic of the present invention contains the above-mentioned coloring base, the skin troubles such as spots, freckles, nevus and the like can be naturally formed (thickness, steps, whitening, etc.). (There is no discomfort).

[Brief description of the drawings]

FIG. 1 shows the results of each sample for a light transmittance test using the coloring base and the comparative base blended in the cosmetic of the present invention.
It is a figure which shows the light transmittance with respect to a light wavelength.

Claims (2)

(57) [Claims] An aluminum particle and pigment particles covering said aluminum particles, said pigment particles containing at least a white inorganic pigment and fixed to said aluminum particles by a binder formed of a water-soluble or oil-soluble polymer. A cosmetic comprising a coloring base as described above. 2. The cosmetic according to claim 1, wherein the coloring base has been subjected to a water-repellent treatment.