JP6677487B2 - Makeup cosmetics - Google Patents

Description

  The present invention relates to a makeup containing a complex interference pearling agent that produces a natural, healthy and reddish skin color by applying a powder exhibiting a reflection interference color to the face and generating a hue contrast effect on the skin. Related to cosmetics.

  2. Description of the Related Art Conventionally, makeup cosmetics have been required to have an effect of hiding skin spots, freckles, uneven color, dullness, conspicuous pores, wrinkles, etc., and showing the skin neatly. In addition, it is required to naturally produce a healthy skin tone. As a method of covering skin trouble, a colored pigment having a high hiding power such as titanium oxide or iron oxide is used. In addition, spherical powder made of silica or organic powder having a high diffuse reflection property is used in order to make undesirable unevenness of the skin such as pores and wrinkles unnoticeable. Further, by controlling the skin color based on the subtractive color mixture, a blue pigment is used to give a sense of transparency, and a green pigment is used to suppress redness.

  However, if a large amount of powder having a high hiding power is added to the makeup cosmetic, the natural color tone of the original skin is lost, giving an unnatural impression. In addition, when a large amount of spherical powder having high diffuse reflection is blended, the entire face appears to be swollen, similarly giving an unnatural impression. The use of a pigment that directly colors skin covers skin troubles and causes a change in hue, but makes the texture of the entire face unnatural. Because the hue change due to coloring is based on subtractive color mixing, it lowers the saturation of the entire skin and gives the impression that the skin is dull.

  On the other hand, it is generally known that blood flow decreases with aging. However, this decrease in blood flow reduces the apparent goodness of the skin, giving the skin an unhealthy and old impression. The skin color control by subtractive color mixing as described above lowers the saturation of the skin color and makes it look dull, giving the impression of aging, so it gives a natural and good skin color without dulling the skin color There is a need for the development of makeup cosmetics.

  In order to provide a natural finish, there is a method of blending powders having a high transparency, but these powders are, in other words, powders having a high visible light transmittance. Therefore, although it is possible to give a natural impression, it is not possible to produce a healthy, beautiful and beautiful finish.

  In recent years, as a method of perceiving a hue change on the skin without coloring the skin, a method of blending a plate-like powder called a pearl agent exhibiting a reflection interference color into a cosmetic has been adopted (Patent Documents) 1). Since these plate-like powders have high specular reflection light, they give a glossy feeling and a reflection interference color is easily perceived. Therefore, they are blended in a wide variety of makeup cosmetics such as foundations and eye shadows. However, if a large amount of pearling agent is blended, it gives an unnatural glare due to high specular reflection light.

  On the other hand, Patent Literature 2 discloses a composite powder which suppresses strong luster by coating a pearl agent such as mica titanium with a spherical powder to give a transparent natural texture. However, since the surface of the pearl agent is covered with the spherical powder without gaps, the interference color inherent in the pearl agent is almost lost. Also, due to the height of the diffuse reflection light of the spherical powder covering a large amount of the surface, when the composite powder is applied to the skin, an impression that the face is swollen is brought.

  Among the pearling agents, in Patent Document 3 which has the effect of making the reflection interference color from blue to green less noticeable, the entire surface of the pearling agent is coated with a white powder such as zinc oxide or aluminum chloride. Thus, a method of using a composite pearl agent in cosmetics is disclosed. However, this also reduces the saturation of the reflection interference color and gives unnatural whiteness due to the white powder covering the surface.

  Patent Literature 4 discloses a method in which talc is used as a base powder instead of mica to prepare talc coated with titanium oxide to avoid unnatural glare caused by titanium mica. By using talc as the base material, the brightness is reduced compared to titanium mica, and it is possible to exhibit a natural luster and reflection interference color.However, since the brightness of the powder itself is considerably low, the In order to obtain the effect, it was necessary to mix a large amount.

  Under the circumstances described above, there has been a demand for the development of a makeup cosmetic that makes a skin color appear brighter and brighter without directly coloring the skin with a pigment, and provides a natural finish.

Patent No. 4068800 JP-A-2003-12461 Patent No. 3816015 JP 2004-339185 A

  Accordingly, it is an object of the present invention to provide a makeup cosmetic which makes a skin color appear bright and ruddy without coloring the skin with a coloring pigment or the like, and yet provides a natural finish.

  In order to solve such a problem, the inventors of the present application have developed a specular reflection component generated in a highlight portion (the brightest portion in a face image) without changing the diffuse reflection component of the skin in an image of the face. As a result of performing an image simulation of coloring only (reflection interference color), the color relative ratio between the highlight portion and the surrounding portion is perceived by the human eye as a color tone correction effect different from the color tone correction effect for coloring the skin. I found the effect that the skin color looks different.

  In other words, for the pearl agent contained in the actual makeup cosmetic, in other words, the interference pearl agent having a specific reflection interference color has a color relative ratio between the highlight region and its peripheral portion due to the interference color of the interference pearl agent. Can have the effect of correcting the perceived skin color while having a low coloring ability.

  Here, when one considers a case where an interference pearl agent having a green reflection interference color, which is one of the interference pearl agents having a specific reflection interference color, is applied to the face, the highlight portion is perceived as green. The above-described simulation has found that a color relative ratio occurs in which the peripheral portion is strongly perceived by red, which is a complementary color of green. Since red is a color that further enhances the skin color, this method can make the skin color look good without applying a red pigment to the skin.

  Further, the interference pearl agent having the green reflection interference color is coated with a spherical organic powder having a particle diameter of 200 to 400 nm in an amount of 2.5 to 10.0% of the total amount of the interference pearl agent, so that the reflection interference is reduced. We found that the angle dependence of the color increased, and the reflected interference color was perceived more strongly, and red was more strongly perceived around the highlights, making the skin appear brighter and more bloody.

  Among the makeup cosmetic formulations, particularly in the case of a solid powder cosmetic, a powder composition containing the interference pearl agent and a powder composition containing an oil agent, and water or a volatile solvent are mixed to form a slurry. Filling the slurry into a container and drying it to form a solid powder cosmetic product manufactured by a wet molding method enhances the adhesion of the interference pearl agent to the skin and the orientation of the adhesion, and makes the hue more noticeable. It was confirmed that the contrast was increased.

  In addition, regardless of the molding method, even if an oily component that is in the form of a paste at 25 ° C. is contained in the solid powder cosmetic, the adhesion of the interference pearl agent to the skin is enhanced, and the hue is further improved. It was confirmed that the contrast was increased.

Hereinafter, the present invention will be described in detail.

The present invention is an invention that provides a makeup cosmetic containing an interference pearl agent, which satisfies the optical index values described in (1) and (2) below.
(1) A double-sided tape was stuck on black paper, and the interference pearl agent was uniformly applied on the black paper with a cosmetic brush. In the value obtained by fitting to 1, S is 7 or more and α is 15 or more.
R = S × cos θ ＾ α + d (Equation 1)
Where R: received light amount, S: specular reflection intensity, θ: deviation angle of the received light angle from the specular reflection angle, α: dependence on the specular reflection angle, d: correction value (2) A 20 μm-thick film containing 5% by weight of resin was prepared as a measurement sample, and the spectrophotometer was used to measure the specular reflectance of the measurement sample based on the spectral reflectance of the specular reflection light in white barium sulfate. When the reflectance is measured and the L * C * h value is calculated from the obtained spectral reflectance, the h value is in the range of 140 ° to 200 ° and C * is 5 or more.
Here, the h value represents a hue angle in the L * C * h color system, the C * value represents saturation in the L * C * h color system, and L * represents lightness in the L * C * h color system.

  Among the optical index values, a commercially available gloss meter can be used as a gloss meter used for calculating S: specular reflection intensity and α: specular reflection angle dependency described in (Equation 1). A digital variable-angle gloss meter UGV-5DP manufactured by Testing Machine Co., Ltd. can be used. The fitting can be performed by, for example, known software gnuplot (www.gnuplot.info), but is not limited thereto.

  Among the optical index values, a commercially available spectrophotometer can be used as the spectrophotometer used for calculating the h value and the C * value described in (Equation 2). For example, the measurement can be performed by attaching an absolute reflectance measurement unit with a manual stage to an ultraviolet-visible infrared spectrophotometer V-660 manufactured by JASCO Corporation, but the method is not limited to this method.

  If S in the above (1) is 7 or more, it has a sufficient specular reflection intensity to perceive the reflected interference color. Further, if α is 15 or more, a hue difference between a highlight portion that emits a reflection interference color and its peripheral portion clearly appears, a contrast effect by the hue occurs more strongly, and a bright and bloody skin color is produced. Is possible. And in order to make it look more ruddy, S is preferably 8 or more and α is preferably 19 or more. When the h value in the above condition (2) is 140 ° to 200 °, a specific color name ranges from yellow-green to green and blue-green, that is, green represented by a range from yellow-green to blue-green. The surrounding color tone. Therefore, when the reflection interference color is green, red, which is a complementary color of green, is easily perceived by the contrast effect, and if C * is 5 or more, the saturation is sufficient to be recognized as green.

  Therefore, in the present invention, when the interference pearl agent identified by the optical index values of (1) and (2) is specifically described as a shape or a hue, the interference pearl agent having a green reflection interference color is used as a base powder. And a composite interference pearl agent coated with spherical organic powder having a particle diameter of 200 to 400 nm corresponding to 2.5 to 10.0% by weight of the total amount as child particles.

  The interference pearl agent as a base powder used in the present invention is obtained by forming a metal oxide coating layer containing titanium oxide as a main component on the surface of a flaky substrate, and has a particle diameter of 1 to 150 μm and a thickness. Has a thickness of 5 μm or less, preferably 1 μm or less, and a flaky substrate such as mica, synthetic mica, or glass flake is uniformly coated with titanium oxide having a crystal form such as rutile type or anatase type (each size). Is a catalog value). Although the appearance of the interference pearl agent itself is white, the pearly luster-like reflection interference color has a green tone expressed in the range from yellow-green to blue-green as described above. Further, the particle size is preferably 120 μm or less so that the glare of the interference pearl agent itself is conspicuous and the finished beauty is not lost.

  Specifically, as interference pearling agents for the mother powder, FLAMENCO SATIN GREEN, FLAMENCO SUPER GREEN, FLAMENCO GREEN, FLAMENCO SUMMIT GREEN, FLAMENCO SPARKLE GREEN (all from BASF), TIMRON GROUP REPLEMENT, TIMERION REGISTER REPERM, and TIMERION REGISTER REPERM , PRESTIGE SILK GREEN, PRESTIGE GREEN, PRESTIGE MAGIC GREEN, PRESTIGE BRIGHT GREEN, PRESTIGE BRIGHT MYSTIC GREEN, PRESTIGE SPARKLING GREENRSA, GUNDERS SHINE MT1018RG, MICROGLAS METASHINE MT1030RG, MICROGLAS METASHINE MT1080RG, MICROGLAS METASHINE MT1120RG (Nippon Sheet Glass Co., Ltd.), etc. One or more of these interference pearling agents can be used.

  In the present invention, in order to further increase S and α in the above (1), that is, to increase the specular reflection intensity of the interference pearlescent agent of the mother powder and its angular dependence to clarify the hue difference, A spherical organic powder having a particle diameter of 200 to 400 nm corresponding to 2.5 to 10.0% by weight is coated as child particles on the surface of the pearl agent. Further, the preferable coating amount of the spherical organic powder is 5.0 to 8.0% by weight. If the spherical powder is coated in an amount of more than 10.0%, both the specular reflection intensity and the specular reflection angle dependency of the interference pearl agent in the base powder are reduced, and the reflected interference color cannot be perceived. On the other hand, when the coating concentration is less than 2.5% by weight, the effect of coating the spherical organic powder on the specular reflection angle and the effect of the reflection interference color on the color relative ratio effect are insufficient.

  According to the present invention, the method for producing a composite interference pearl agent in which the interference pearl agent of the base powder is coated with the spherical organic powder includes the steps of (1) mixing the interference pearl agent and the spherical organic powder in a fixed composition ratio, (2) After uniformly dispersing a desired spherical organic powder in an aqueous alcohol solution, adding an interference pearl agent to form a slurry, and spray-drying in the same manner. (3) A method of uniformly dispersing a dispersion of an emulsion-like spherical organic powder in water, further adding an interference pearling agent, and spray-drying the same, and (4) a small amount of the spherical organic powder. After uniformly dispersing in water with the above surfactant, add an interference pearl agent and further disperse, add a small amount of coagulant such as aluminum sulfate and polyaluminum chloride, filter, wash and dry. (5) After uniformly dispersing the dispersion of the emulsion-like spherical organic powder in water, adding an interference pearl agent and further dispersing the dispersion, adding a small amount of a coagulant such as aluminum sulfate or polyaluminum chloride. This is a method of filtering, washing and drying, but is not particularly limited as long as the spherical organic powder is immobilized on the pearl pigment.

  As a preferable method for producing the composite interference pearl agent in which the interference pearl agent is coated with the spherical organic powder according to the present invention, the production methods (4) and (5) are preferable from the viewpoint of simplicity of the production method.

  The spherical organic powder coated with the interference pearl agent in the present invention includes, for example, spherical particles composed of organic natural substances such as cellulose, polyethylene, nylon, poly (meth) acrylate, polystyrene, and a methylsiloxane network polymer. Is a spherical polymer particle made of an organic compound of the above. In addition, the latter spherical powder obtained by organic synthesis is a homopolymer or a copolymer of two or more of these organic compounds, and a powder having a core-shell structure in which different organic compounds are overlapped in two or more layers. is there. In the present invention, one or more of these spherical organic powders can be used.

  In the present invention, commercially available spherical organic powders can be used, but in consideration of obtaining a desired particle size, a polystyrene-based resin, poly (meth) acryl, which can be easily controlled in particle size by emulsion polymerization or the like. It is preferable to use an acid ester-based resin, a copolymer of two or more of these, or a powder having a core-shell structure. In particular, polymethyl methacrylate, methyl methacrylate crosspolymer, acrylates crosspolymer, acrylates copolymer, (styrene / DVB) copolymer (DVB: divinylbenzene) are easy to control to various particle diameters, and are suitable for powder and emulsion-like. Many are commercially available as dispersions dispersed in water or the like.

  The obtained composite interference pearl agent may be subjected to various surface treatments such as a metal soap treatment, a silicone treatment, a fluorine-containing compound treatment, an amino acid treatment and the like in order to impart water repellency and oil repellency to the cosmetic. These treatments may be used alone or in combination of two or more.

  Then, the spherical organic powder is added to the interference pearl agent, which is identified by the optical index values of the above (1) and (2), that is, the interference pearl agent having a green reflection interference color, contained in the makeup cosmetic. The amount of the composite interference pearl agent coated as is not particularly limited, but by causing a color relative ratio between the skin region and the highlight region by the reflection interference color, the skin tone is corrected, and the skin color looks bright and bloody Therefore, 0.5 to 15.0% by weight is preferable. When the content exceeds 15.0% by weight, the color of green to blue, which is a reflection interference color, is strongly perceived, and the appearance of glare due to specularly reflected light and unnatural skin tone appears.

  Furthermore, in the present invention, the melting point is 25 ° C. or more according to the general test method and the melting point measuring method (second method) described in the oily component which is a paste at 25 ° C. (quasi-drug raw material standard 2006 (published by Yakuji Nippo). When the oily component) is contained in the makeup cosmetic, the adhesion and orientation of the interference pearl agent can be increased, and the color relative ratio can be further increased.

  In the present invention, any of the paste-like oily components that are commonly used in makeup cosmetics can be used, but vaseline, macadamia nut fatty acid phytosteryl, (hydroxystearic acid / stearic acid) (/ Rosinic acid) dipentaerythrityl, dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), and dimer dilinoleyl bis dimer dilinoleate (behenyl / isostearyl / phytosteryl) are preferred. Commercially available products include, for example, Cosmall 168ARV (manufactured by Nisshin Oillio), YOFCOMAS (manufactured by Nippon Seika), Planool-H (manufactured by Nippon Seika), Planool-S (manufactured by Nippon Seika), and Plandol- G (manufactured by Nippon Seika), Nomcoat W (manufactured by Nisshin Oillio), Chloratum V (manufactured by Croda Japan), and the like. One or more of these can be used as needed.

  The oily component is preferably contained in the composition of the makeup cosmetic in an amount of 0.1 to 2.0% by weight. Included in this range together with the interference pearl agent identified by the optical index values of (1) and (2) above, that is, an interference pearl agent having a green reflection interference color or a composite interference pearl agent coated with spherical organic powder as child particles. Then, the interference pearl agent or the composite interference pearl agent of the present invention is brought into close contact with the skin without causing a glistening and stickiness due to the paste-like oily component film, and the light-reflecting powder surface is oriented in a certain direction. By increasing the property, it is possible to more efficiently present the reflection interference color on the skin. Therefore, it is possible to further exert the effect of making the skin color appear bright and ruddy.

  The present invention is a makeup cosmetic containing the above-mentioned interference pearl agent, specifically, an emulsion, a makeup base, a powder foundation, a cream foundation, a liquid foundation, an oily solid foundation, an emulsified solid foundation, and a face powder. , Concealer, control color, cheek color, eyeshadow, etc.

  Among these, in the case of makeup cosmetics in the form of solid powder such as powder foundation, teak color and eyeshadow, the filling and molding method is a dry mixing press step (compression molding of a powder composition containing a powder and a binder such as an oil agent). Make-up cosmetics in the form of a solid powder obtained by the wet mixing press process can more efficiently exhibit the reflection interference color on the skin and exhibit the effect of making the skin color appear brighter and more vivid than that of It is.

  Here, the wet mixing press step is performed by using the COSMETIC STAGE Vol. 4, No. 8, pages 5 to 11 (2010), as disclosed in JP-A-56-108703, JP-A-2014-101293, etc., together with a powder or a binder constituting a solid powder cosmetic, once with an aqueous solvent. A slurry is prepared by adding a solvent such as a volatile solvent or a volatile solvent, and the slurry is poured into a mold, pressed and dried while being subjected to suction or the like, and is then molded.In the cosmetics industry in recent years, particularly as a `` wet powder foundation, '' It has come to be seen as a product.

As a feature of the solid powder cosmetic obtained by the wet mixing press process, if the powder and binder constituting the solid powder cosmetic are the same, the shear adhesion stress τ _c obtained from the powder layer shear force measurement is a dry type. It has a feature that it is higher than τ _{c in the} mixing press step, and more efficiently presents the reflection interference color on the skin, and makes the skin color appear bright and sultry. In the solid powder cosmetic obtained by the wet mixing press step in the present invention, the τ _c value is 1.2 times or more as good as the τ _c value of the dry mixing press step, and produces a good effect, and further 1.5 times. As described above, the reflection and the color relative ratio were particularly good.

The measurement of the powder layer shearing force is performed by the following procedure as an example.
(1) Filling the inside of a cylindrical cell (upper fixed cell, lower movable cell) with powder (powder obtained by unraveling each press-formed product, or punched-out press-formed product into a cylindrical shape), and keeping the vertical stress constant Load slowly at speed.
(2) After reaching the prescribed value of the vertical stress, the application of the vertical stress is stopped, and a relaxation time for the powder layer is provided in a constant volume state.
(3) After sufficient stress relaxation occurs, a horizontal external force is applied to the cell at a constant speed.
(4) After the shear reaches a steady state (a state in which the values of the vertical stress and the shear stress are constant), the vertical stress is gradually attenuated while maintaining the external force in the horizontal direction.
(5) The shear stress τ (vertical axis: y-axis) corresponding to each vertical stress σ (horizontal axis: x-axis) obtained by detecting the vertical stress and the shear stress in the damping process is plotted, and the shear adhesion is plotted. The stress τ _c (τ value when σ = 0) is obtained.

Therefore, with a 1.2-fold or more tau _c values than tau _c values of the obtained solid powder cosmetic from dry mixing pressing step, determines that the pressed powder cosmetic obtained by the wet mixing pressing process is preferred in the present invention Thus, the solid powder cosmetic obtained by the wet mixing press process can be clearly distinguished from that of the dry mixing press process by τ _c .

  The makeup cosmetic of the present invention includes, in addition to the above-mentioned interference pearl agent, water, oils and fats, which are components to be added to ordinary cosmetics, as long as the effects of the present invention are not impaired, if necessary. , Hydrocarbons, fatty acids, alcohols, alkyl glyceryl ethers, esters, silicone oils, fluorine oils, polyhydric alcohols, sugars, polymers, surfactants, humectants, ultraviolet absorbers, chelating agents, pH adjusters, antioxidants Agents, sequestering agents, disinfectants / preservatives, dyes, fragrances, pigments, plasticizers, organic solvents, drugs, animal and plant extracts, general pearling agents, surface-treated powders, composite pigments, amino acids and peptides, vitamins, etc. Can be appropriately blended, but is not particularly limited thereto.

  The makeup cosmetic of the present invention has an effect of producing a vivid and vivid skin color by directly increasing the redness of the surrounding skin color in which the reflection interference color is perceived without directly coloring the skin. Such an effect that causes a color relative ratio between a highlight portion having a high reflection interference color and a portion around the highlight portion enhances the apparent three-dimensional appearance by being included in a paint of a building, etc., in addition to makeup cosmetics. Alternatively, it can be used in other fields because it has the effect of enhancing the attractiveness.

  Next, the present invention will be described in more detail with reference to examples and examples of a compound interference pearl agent as an interference pearl agent identified by a specific optical index value, but the invention is not limited thereto.

Composite interference pearl agent 1 (2.5% by weight 300 nm methyl methacrylate crosspolymer / particle diameter 8 to 36 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 1.25 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 48.75 g of an interference pearling agent (Flamenco Summit Green manufactured by BASF) was added, and the mixture was ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and the mixture was further stirred. The mixture was continued for 10 minutes, followed by filtration and washing with water. After drying, a complex interference pearl agent was obtained.

Composite interference pearl agent 2 (7.5% by weight 300 nm methyl methacrylate crosspolymer / particle diameter 8-36 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 3.75 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 46.25 g of an interference pearl agent (Flamenco Summit Green manufactured by BASF) was added and ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and stirring was further continued. The mixture was continued for 10 minutes, followed by filtration and washing with water. After drying, a complex interference pearl agent was obtained.

Composite interference pearl agent 3 (10.0 wt% 300 nm methyl methacrylate crosspolymer / particle diameter 8 to 36 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 5.00 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 45.00 g of an interference pearl agent (Flamenco Summit Green manufactured by BASF) was added, and the mixture was ultrasonically dispersed for about 5 minutes. Then, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added while stirring with a magnetic stirrer, and stirring was further continued. The mixture was continued for 10 minutes, followed by filtration and washing with water. After drying, a complex interference pearl agent was obtained.

Composite interference pearl agent 4 (5.0% by weight 300 nm acrylate copolymer / particle diameter 8 to 36 μm interference pearl agent)
30 g of an acrylate copolymer as a spherical organic powder (average particle diameter: about 300 nm, core-shell type), 70 g of ion-exchanged water, and 0.5 g of sodium lauryl sulfate were mixed and dispersed by ultrasonic waves for 1 hour. Thereafter, separately from this, 1.66 g of this emulsion-like dispersion was added to a slurry in which 9.50 g of an interference pearl agent (Flamenco Summit Green manufactured by BASF) was dispersed in 100 g of ion-exchanged water, and ultrasonic dispersion was performed. Performed for 5 minutes. While stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, stirring was continued for about 10 minutes, followed by filtration and washing with water, followed by drying to obtain a composite interference pearl agent.

Composite interference pearl agent 5 (5.0% by weight of 400 nm (styrene / DVB) copolymer / particle diameter of 8-36 μm interference pearl agent)
30 g of (styrene / DVB) copolymer as spherical organic powder (average particle diameter: about 400 nm), 70 g of ion-exchanged water, and 0.5 g of sodium lauryl sulfate were mixed and dispersed by ultrasonic waves for 1 hour. Thereafter, separately from this, 1.66 g of this emulsion-like dispersion was added to a slurry in which 9.50 g of an interference pearl agent (Flamenco Summit Green manufactured by BASF) was dispersed in 100 g of ion-exchanged water, and ultrasonic dispersion was performed. Performed for 5 minutes. While stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, stirring was continued for about 10 minutes, followed by filtration and washing with water, followed by drying to obtain a composite interference pearl agent.

Composite interference pearl agent 6 (5.0% by weight 300 nm methyl methacrylate crosspolymer / particle size 18-25 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 2.5 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 47.5 g of an interference pearling agent (Timiron super Green, manufactured by Merck) was added, and the mixture was ultrasonically dispersed for about 5 minutes. Then, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added while stirring with a magnetic stirrer. The mixture was continued for 10 minutes, followed by filtration and washing with water. After drying, a complex interference pearl agent was obtained.

Composite interference pearl agent 7 (10.0 wt% 300 nm methyl methacrylate crosspolymer / particle size 18-25 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 5.0 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 45.0 g of interference pearling agent (Timiron super Green, manufactured by Merck) was added, and the mixture was ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and stirring was further continued. The mixture was continued for 10 minutes, followed by filtration and washing with water. After drying, a complex interference pearl agent was obtained.

Composite interference pearl agent 8 (5.0% by weight 300 nm methyl methacrylate crosspolymer / particle size 20-120 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 2.5 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 47.5 g of interference pearling agent (Prestress Sparkling Green, manufactured by Eckart) was added and ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and stirring was further continued. The mixture was continued for 10 minutes, followed by filtration and washing with water. After drying, a complex interference pearl agent was obtained.

Comparative powder 1 (1.0% by weight, 300 nm methyl methacrylate crosspolymer / particle size of 8 to 36 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 0.50 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 49.50 g of an interference pearl agent (Flamenco Summit Green manufactured by BASF) was added thereto, and the mixture was ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and the mixture was further stirred. This was continued for 10 minutes, followed by filtration and washing with water. After drying, a comparative powder was obtained.

Comparative powder 2 (15.0% by weight 300 nm methyl methacrylate crosspolymer / particle size 8 to 36 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 7.5 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 42.5 g of an interference pearl agent (Flamenco Summit Green manufactured by BASF) was added and ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and stirring was further continued. This was continued for 10 minutes, followed by filtration and washing with water. After drying, a comparative powder was obtained.

Comparative powder 3 (5.0% by weight of 500 nm methyl methacrylate crosspolymer / particle diameter of 8 to 36 μm interference pearl agent)
30 g (average particle diameter: about 500 nm) of methyl methacrylate crosspolymer as a spherical organic powder was dispersed in 70 g of a 30% by weight aqueous solution of methanol by ultrasonic waves for 1 hour. Thereafter, 1.66 g of this dispersion, 0.002 g of sodium lauryl sulfate, and 90 g of ion-exchanged water were mixed and dispersed by ultrasonic waves for 5 minutes, and 9.50 g of interference pearling agent (Flamenco Summit Green manufactured by BASF) was added. Further ultrasonic dispersion was performed for 5 minutes. While stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, stirring was continued for about 10 minutes, followed by filtration and washing with water, followed by drying to obtain a comparative powder.

Comparative powder 4 (5.0% by weight, 100 nm methyl methacrylate crosspolymer / particle size 7-35 μm interference pearl agent)
30 g (average particle size: about 100 nm) of methyl methacrylate crosspolymer as a spherical organic powder was dispersed in 70 g of a 30% by weight aqueous solution of methanol by ultrasonic waves for 1 hour. Thereafter, 1.66 g of this dispersion, 0.002 g of sodium lauryl sulfate, and 90 g of ion-exchanged water were mixed and dispersed by ultrasonic waves for 5 minutes, and 9.50 g of interference pearling agent (Flamenco Summit Green manufactured by BASF) was added. Further ultrasonic dispersion was performed for 5 minutes. While stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, stirring was continued for about 10 minutes, followed by filtration and washing with water, followed by drying to obtain a comparative powder.

Comparative powder 5 (2.5% by weight of 300 nm methyl methacrylate crosspolymer / particle size of 8 to 36 μm interference pearl agent)
0.01 g of sodium lauryl sulfate was dissolved in 450 g of ion-exchanged water, and 1.25 g of methyl methacrylate crosspolymer as a spherical organic powder having an average particle diameter of 300 nm was ultrasonically dispersed for about 5 minutes. Thereafter, 48.75 g of an interference pearl agent (Flamenco Summit Blue manufactured by BASF) was added and ultrasonically dispersed for about 5 minutes. Then, while stirring with a magnetic stirrer, an appropriate amount of a commercially available aqueous solution of polyaluminum chloride was added, and stirring was further continued. This was continued for 10 minutes, followed by filtration and washing with water. After drying, a comparative powder was obtained.

Comparative powder 6 (2.5% by weight 300 nm methyl methacrylate crosspolymer / particle diameter 8 to 36 μm interference pearl agent)
97.5 g of interference pearl agent (Flamenco Summit Green manufactured by BASF) and 2.5 g of methyl methacrylate crosspolymer which is a spherical organic powder having an average particle diameter of 300 nm were mixed with a Henschel type mixer for 5 minutes, Next, a pulverization treatment was performed with an atomizer to obtain a comparative powder in which only two kinds of powders were mixed.

<Evaluation of optical characteristics of composite interference pearl agent and comparative powder>
The optical characteristics of the composite interference pearl agent and the comparative powder were evaluated as follows. First, the specular reflection intensity and the specular reflection angle dependency of the composite interference pearl agent were measured by the following methods. A double-sided tape was stuck on black paper, and each composite interference pearl agent was uniformly applied with a brush on the double-sided tape, and the gloss intensity was measured using a digital variable-angle gloss meter UGP-5DP manufactured by Suga Test Instruments Co., Ltd. did. The amount of received light at each light receiving angle obtained by a gloss meter was obtained, and the obtained data was fitted to (Equation 1) to calculate the values indicating the specular reflection intensity and the specular reflection angle dependency. The fitting was performed by known software gnuplot (www.gnuplot.info).
(Equation 1) R = S × cos θ ＾ α + d
Here, R: received light amount, S: specular reflection intensity, θ: deviation angle of light reception angle from regular reflection angle, α: dependence on specular reflection angle, d: correction value

  The color tone of the reflection interference color of the composite interference pearl agent was measured as follows. A film having a thickness of 20 μm in which each composite interference pearl agent was mixed with 5% by weight of a silicone resin (a silicone resin obtained by mixing 90% by weight of KE1300T manufactured by Shin-Etsu Silicone and 10% by weight of CAT1300 manufactured by the company) as a sample for measurement. Produced. By attaching an absolute reflectance measurement unit with a manual stage to the UV-Vis infrared spectrophotometer V-660 manufactured by JASCO Corporation, for the measurement based on the spectral reflectance of specular reflection light in white barium sulfate. The spectral reflectance of the specular reflection light of the sample is measured, and the L * C * h value is calculated from the obtained spectral reflectance. The h value is the hue of the reflection interference color, and the C * value is the saturation value of the reflection interference color. did. Table 1 shows the values obtained by the above method.

  The complex interference pearl agents 1 to 3 are obtained by coating mother powder of the same interference pearl agent with different weight% concentrations or different types of spherical particles. When the coating concentration of the spherical particles is in the range of 2.5 to 10% by weight, the hue of the reflection interference color hardly changes. On the other hand, the angle dependence of the specular reflection became the highest value in the composite interference pearl agent coated with 7.5% by weight of spherical particles. The complex interference pearl agents 6 and 7 have smaller particle diameters than the base powder of the interference pearl agents used in the complex interference pearl agents 1 to 5, and the obtained composite interference pearl agents have a lower chroma of the reflection interference color. Met. The specular reflection intensity and the same angle dependency due to the composite of the spherical particles have the same tendency as that of the composite interference pearlescent agents 1 to 5. As the composite interference pearl agent 8, an interference pearl agent having a large particle diameter was used as the base powder, but the angle dependence of mirror reflection and the strength were good. Compared with the composite interference pearl agents 1 to 3, Comparative Powders 1, 3, and 4 had lower specular reflection intensity and the same angle dependence, and Comparative Powder 2 had lower specular reflection intensity. Comparative powder 5 did not exhibit a green color. Comparative powder 6 which was only mixed had insufficient angle dependence and intensity of specular reflection.

Actually, 5% by weight of each of these complex interference pearl agents was contained in a makeup base having the following formulation (described as a powder examined in the formulation), and a doll for makeup training (Bioskin Doll F-100 manufactured by Bureaux Co., Ltd.) was used. ) And photographed, and evaluated by three experts based on the photographed images. Table 2 shows the type of each complex interference pearl agent contained in each formulation example and comparative example, and also shows the evaluation results. The evaluation results were scored from 1 to 5 as to whether the perception of reflected interference light, which is a condition for generating the contrast effect, the effect of correcting the skin color brightly and well, and the beautiful finish, were clearly perceivable. (5: very good, 4: somewhat good, 3: neither good, 2: not very good, 1: not good at all) , “4.0 or more:」 ”,“ 3.0 or more and less than 4.0: ○ ”,“ 2.0 or more and less than 3.0: Δ ”, and“ less than 2.0: x ”.
(Makeup base)
Ingredient Content (% by weight)
(1) Sesquistearate methylglucoside 1.00
(2) Sodium stearoyl lactate 0.20
(3) Hardened rapeseed oil alcohol 3.50
(4) Squalane 6.00
(5) Octyldodecyl myristate 6.00
(6) Methylphenyl polysiloxane 6.00
(7) Vaseline 2.00
(8) Polyglyceryl triisostearate 1.00
(9) Butyl paraben 0.10
(10) Purified water 52.24
(11) Synthetic sodium magnesium silicate 1.00
(12) hydroxyethanediphosphonic acid 0.06
(13) Xanthan gum 0.20
(14) 1,3-butylene glycol 10.00
(15) Methyl paraben 0.20
(16) Diglycerin 5.00
(17) Each complex interference pearl agent 5.00
(18) Methyl polysiloxane 0.50
Total 100.00
(Preparation method)
The aqueous phase components (10) to (13) are stirred and mixed and heated to 85 ° C. The components (1) to (9) in the oil phase are mixed and dissolved by heating to 80 ° C. Thereafter, the above-mentioned aqueous phase portion was added to the oil phase portion to carry out preliminary emulsification, and after uniform emulsification with a homomixer, the components (14) to () obtained by dissolving the component (15) while the homomixer was stopped and stirring was continued. Add the mixture up to 17). Subsequently, cooling is started, and the component (18) is added at about 70 ° C., and further cooled to 35 ° C. to obtain a decorative base.

  From the results in Table 2, it is found that in Prescription Example 2 containing the complex interference pearl agent 2, the interference color of the complex interference pearl agent 2 has a high specular reflection intensity and angle dependence, and a green hue as a reflection interference color is perceived. Was highly evaluated in all items because it had sufficient saturation. The same evaluation was obtained in Formulation Examples 4 and 5 having the same optical index value as the composite interference pearl agent 2. On the other hand, the complex interference pearl agent 1 contained in the prescription example 1 has a lower angle dependence of specular reflection than the complex interference pearl agent 2, so that the evaluation of the perception of the reflection interference color is slightly inferior. Since the saturation of the colors was equally high, the effect of showing a bright and reddish color by the contrast effect was highly evaluated. In Formulation Example 6 in which the complex interference pearl agent 6 was contained, although the effect of showing a brighter and brighter color was lower than in Formulation Examples 2, 4, and 5, the reflected interference color was perceptible, and the beauty of the finish was evaluated well. It became. Formulation Example 3 and Formulation Example 7, in which the coating concentration of the spherical powder to be coated is 10% by weight, are different from Formulation Example 2, which has the highest evaluation, in that both of the included complex interference pearl agents 3 and 7 have reflection interference colors. Although the perception is slightly inferior, it is a range that can be sufficiently perceived, and as a result, the beauty of the finish is also highly evaluated.

  On the other hand, in Comparative Example 1 containing the comparative powder 1 in which the coated spherical powder is 2.5% by weight or less, the perception of the reflection interference color and the beauty of the finish are low because the angle dependence of the specular reflection is low. Was inferior. In Comparative Example 2 containing Comparative Powder 2 coated with spherical powder in an amount of more than 10% by weight, the optical properties of the composite interference pearl agent were not exhibited in the cosmetic formulation, and the desired bright and ruddy finish was obtained. Could not. In Comparative Example 3 containing Comparative Powder 3 coated with a spherical powder having a large particle diameter, light was diffused, and good results could not be obtained in all evaluation items. In Comparative Example 4 containing Comparative Powder 4 coated with a spherical powder having a fine particle diameter, the angle dependence of specular reflection was low and the beauty of the finish was inferior. In Comparative Example 5, which contained the comparative powder 5 compounded with an interference pearl agent having a blue reflection interference color, the effect of showing the blood color well and the beauty of the finish were inferior. In Comparative Example 6 in which the interference pearl agent and the organic spherical powder were dry-mixed and contained in the makeup cosmetic without being compounded, it was possible to make the reflection interference color of green close, but a bright and ruddy finish was obtained. Was less effective.

  In other words, the results in Table 2 are summarized in that a makeup cosmetic containing a composite interference pearl agent coated with 2.5 to 10% by weight of organic spherical particles as a mother powder using an interference pearl agent having a green reflection interference color. If so, the reflected interference color of green is perceived, red is perceived around the highlight due to the hue contrast effect, and the effect of making the skin look bright and bloody is enhanced, and a beautiful finish can be obtained. Particularly, a preferable effect can be obtained by a composite plate-like powder coated with 5.0 to 8.0% by weight of organic spherical particles. Furthermore, when these composite interference pearling agents satisfy the following optical index values obtained by the above-described measurement method, the intended effect is further enhanced. That is, the powder satisfies the specular reflection angle dependence index value of 15 or more, the specular reflection intensity index value of 7 or more, the hue of the reflection interference color from 140 ° to 200 °, and the saturation of the reflection interference color of 5 or more. The particle diameter of the interference pearl agent to be coated is preferably 120 μm or less. As the results of Formulation Example 8 show, when the particle size increases, the pearl itself becomes noticeable and the tendency to reduce the beauty of the finished product begins to appear. Further, the interference pearl agent and the organic spherical powder, which are to be the bases, need to be compounded through some kind of wet dispersion step, and the effect obtained by simply mixing the components by a dry method does not exert the desired effect.

  Next, in order to study the content of the composite interference pearl in the makeup cosmetic, the amount of the component (17) of the above-mentioned makeup base formulation and the amount of the composite interference pearl 2 were changed. Table 3 shows detailed contents and evaluation results in each formulation. A composition containing 5.00% by weight of the composite interference pearl agent 2 corresponds to the above-mentioned formulation example 2 in Table 2. The evaluation was performed in the same manner as in Example 1.

From the results in Table 3 , it can be seen that the reflection interference color can be perceived from the content of 0.5% by weight of the composite interference pearl agent, the effect of making the blood color bright and well-colored can be perceived, and that the beauty of the finish can be evaluated well. I understood. Although the above effect could be felt by the increase in the content, the glare was noticeable when the content was as high as 20% by weight as in Formulation Example 5 , and the reflection interference color was obtained. Since the green color was too strong and unnatural, it was considered that the preferable content was up to about 15% by weight.

  Next, in order to determine the effect of combining the complex interference pearl agent and the oily component in a paste state at 25 ° C. in a makeup cosmetic in the present invention to make it look bright and well-colored, the formulation shown in Table 3 below was used. And, a powder foundation was prepared by the following production method, and evaluated by the following evaluation methods and criteria, and the results are shown in Table 3. In the following formulation, the composite interference pearl agent 2, which was most highly evaluated in Example 1, was selected and contained as the composite plate-like powder.

(Method for preparing powder foundation)
Components (1) to (17) were uniformly mixed with a Henschel mixer, and pulverized with an atomizer. Further, the mixed and pulverized product of the components (1) to (17) and the components (18) to (22), which have been heated and mixed in advance, are added to a Henschel mixer and uniformly mixed. Then, the powder was pressed on a middle plate to obtain a powder foundation.

(Evaluation method)
Three panelists specializing in cosmetics use the powder foundations of the above-mentioned prescription examples and comparative examples, and use human faces instead of dolls under the same observation conditions as in the evaluation of the three-dimensional feeling and lift-up feeling using dolls described above. evaluated. The evaluation results were scored from 1 to 5 as to whether the perception of reflected interference light, which is a condition for generating the contrast effect, the effect of correcting the skin color brightly and well, and the beautiful finish, were clearly perceivable. (5: very good, 4: somewhat good, 3: neither good, 2: not very good, 1: not good at all) , “4.0 or more:」 ”,“ 3.0 or more and less than 4.0: ○ ”,“ 2.0 or more and less than 3.0: Δ ”, and“ less than 2.0: x ”.

  From the results in Table 4, in Formulation Examples 1 to 3 in which vaseline in a paste state at 25 ° C. was contained in the range of 0.5 to 2.0, the effect of showing bright and reddish color was high, and the beautiful finish was also highly evaluated. there were. On the other hand, in Comparative Example 7 containing no oily component in a paste state at 25 ° C. or in Comparative Example 8 containing heavy liquid isoparaffin which is a high-viscosity oil, no favorable evaluation was obtained. Therefore, it can be said that it is preferable that the make-up cosmetics contain the paste oily component in the range of 0.5 to 2.0% by weight. If the ratio exceeds this range, the stickiness due to the oily component and the state of adhesion of the composite interference pearl agent to the skin are not uniform, and the effect of the reflection interference color by the composite interference pearl agent is not exhibited.

(Solid powder teak color (hoho red))
A complex interference pearl agent 2, a macadamia nut fatty acid phytosteryl as an oily component in paste form at 25 ° C., and a solid powder teak color having the following formulation were prepared.
Ingredient Content (% by weight)
(1) Complex interference pearl agent 2 2.00
(2) Silicone treated sericite 15.00
(3) Remaining talc (4) Titanium mica 10.00
(5) Synthetic phlogopite 5.00
(6) Silicic anhydride 1.50
(7) Bengala 2.00
(8) Yellow iron oxide 0.50
(9) Titanium oxide 0.20
(10) Methyl paraben 0.20
(11) Methyl polysiloxane 5.50
(12) Di-2-ethylhexyl succinate 5.00
(13) Macadamia nut fatty acid phytosteryl 2.00
(14) Sorbitan sesquioleate 1.00
Total 100.00

(Preparation method)
Components (1) to (10) were uniformly mixed with a Henschel mixer and pulverized with an atomizer. Further, the mixed and pulverized product of the components (1) to (10) and the components (11) to (14) previously heated and mixed are added to a Henschel mixer and uniformly mixed. , Pressed on a middle plate to obtain a teak color.

  When the obtained teak color of Example 4 was applied to the face, the cheek color containing the interference pearling agent having a green interference color in which the spherical powder was not complexed was compared with the cheek color containing a cheek color that was not complexed. The effect of contrast of the hue due to the reflection interference color was strongly exhibited, and the effect of making the surrounding area bright and bloody was further enhanced.

(Solid powder eye shadow)
A solid powder eyeshadow having the following formulation was prepared using the composite interference pearl agent 2 and dipentaerythrityl (hydroxystearic acid / stearic acid / rosinic acid) which is a paste-like oily component at 25 ° C.
Ingredient Content (% by weight)
(1) Complex interference pearl agent 2 5.00
(2) Remaining amount of siliconized sericite (3) Siliconized mica 25.00
(4) Silicone treated talc 15.00
(5) Titanium mica 10.00
(6) Carmine coated mica titanium 5.00
(7) Synthetic phlogopite 5.00
(8) Boron nitride 5.00
(9) Spherical silicone powder 2.00
(10) Silicic anhydride 1.00
(11) Bengala 0.65
(12) Yellow iron oxide 0.20
(13) Titanium oxide 0.20
(14) Red No. 226 0.30
(15) Methyl paraben 0.50
(16) Methyl polysiloxane 5.00
(17) Di-2-ethylhexyl succinate 8.00
(18) (hydroxystearic acid / stearic acid / rosinic acid)
Dipentaerythrityl 2.00
(19) Tocopherol 0.05
Total 100.00

(Preparation method)
Components (1) to (15) were uniformly mixed with a Henschel mixer, and pulverized with an atomizer. Further, the mixed and pulverized product of the components (1) to (15) and the components (16) to (19) previously heated and mixed are added to a Henschel mixer and uniformly mixed. And pressed into a middle plate to obtain an eye shadow.

  The obtained eye shadow of Example 5 has the highest position of the eyelid as compared with the case where an interference pearl agent having a green interference color in which a spherical powder is not composited is used instead of the composite interference pearl agent 2. Since the redness of the surrounding area is felt high, a healthy impression can be given with good blood color.

(W / O emulsion type foundation)
A sunscreen cream having the following formulation was prepared using the composite interference pearl agent 2 and vaseline, which is a paste-like oily component at 25 ° C.
Ingredient Content (% by mass)
(1) Cyclopentasiloxane 10.00
(2) diphenylsiloxyphenyltrimethicone 5.00
(3) Isotridecyl isononanoate 8.00
(4) Diisopropyl sebacate 5.00
(5) Disteardimonium hectorite 0.20
(6) PEG-9 dimethicone 1.00
(7) PEG-9 methyl ether dimethicone 1.00
(8) PEG-30 dipolyhydroxystearate 1.00
(9) Ethylhexyl methoxycinnamate 4.00
(10) Silicone-treated fine particle titanium oxide 5.00
(12) Silicone-treated yellow iron oxide 1.68
(13) Silicone treated bengala 0.25
(14) Siliconized black iron oxide 0.16
(15) 3% by weight siliconized product of composite interference pearl agent 5.00
(16) Dimethylsilylated silica 3.00
(17) Vaseline 1.00
(18) Remaining purified water (19) 1,3-butylene glycol 10.00
(20) Pentylene glycol 1.00
(21) Xanthan gum 0.30
Total 100.00

(Preparation method)
Components 1 to 17 were uniformly dispersed to obtain an oil phase. Components 18 to 21 were uniformly dispersed to obtain an aqueous phase. The aqueous phase was gradually added to the oil phase with stirring, and emulsified at normal temperature. After emulsification, defoaming was performed to obtain a makeup base.

  The obtained W / O emulsified foundation of Example 7 was able to produce a beautiful finish by the effect of making the complex interference pearl agent look bright and reddish.

(Difference between wet mixing press process and dry mixing press process)
In order to examine the difference in effect due to the filling and molding method, a powder foundation having the following formulation was prepared up to the stage before filling and molding.

With respect to Formulation Examples 1 and 2, the components (1) to (15) were uniformly mixed with a Henschel mixer, and pulverized with an atomizer. Further, the mixed and pulverized product of the components (1) to (15) and the components (16) to (19), which have been heated and mixed in advance, are added to a Henschel mixer and uniformly mixed. did. Thereafter, in a wet mixing press process, a powdery powder foundation and a 10% by weight aqueous ethanol solution are mixed before molding to form a slurry having an appropriate fluidity, and the slurry is poured into an inner plate, and pressed while performing suction. And dried to obtain a powder foundation W by a wet mixing press. In the dry mixing press step, the powdery powder foundation was taken on a middle plate as it was before molding, and pressed to obtain a powder foundation D by a dry mixing press.
In addition, the powder foundation by the wet mixing press in Formulation Example 1 was W1, the powder foundation by the dry mixing press was D1, and similarly in Formulation Example 2, was W2 and D2.

For each powder foundation, the press-formed product was punched out in a columnar shape, and the vertical stress was set to 180N, and the shear adhesion stress τ _c was determined. The result is as follows.
Powder foundation Shear adhesion stress τ _c (kPa)
W1 1.83 (1.22 times D1)
D1 1.50
W2 3.40 (1.67 times D2)
D2 2.04

From the results of the respective shear adhesion stresses, the powder foundation by the wet mixing press has a feature that τ _c is higher than that of the dry mixing press, and if the powder and binder constituting the powder foundation are the same, τ _{c is used} . It can be clearly distinguished between dry and dry. Further, in W1 and W2, the effect of showing the reflection interference color on the skin more efficiently and showing the skin color brighter and more brilliant was higher than D1 and D2, respectively, and in particular, W2 according to Prescription Example 2 had a higher effect than W1. .

  The composite interference pearl agent used in the present invention has the ability to increase the angle dependence of the reflected light and further increase the redness of colors other than the highlight portion of the coated surface by the color relative ratio effect provided by the green reflected interference color. Therefore, it is possible to add and use not only makeup cosmetics but also architectural paints and printing inks.

Claims (4)

A composite interference pearl agent coated with 2.5 to 10.0% by weight of an interference pearl agent having a green reflection interference color as a base powder and spherical organic powder having a particle diameter of 200 to 400 nm as child particles. ) And (2) a makeup cosmetic containing a complex interference pearl agent.
(1) A double-sided tape was stuck on black paper, and the interference pearl agent was uniformly applied on the black paper with a cosmetic brush. In the value obtained by fitting to 1, S is 7 or more and α is 15 or more.
R = S × cos θ ＾ α + d (Equation 1)
Here, R: received light amount, S: specular reflection intensity, θ: deviation angle of the received light angle from the specular reflection angle, α: dependence on the specular reflection angle, d: correction value (2) The interference pearl agent is changed to a silicone resin. A film having a thickness of 20 μm mixed with 5% by weight was prepared as a measurement sample, and the spectrophotometer measured the specular reflectance of the specular light of the barium sulfate based on the specular reflectance of the specular light of the barium sulfate. Is measured, and when the L * C * h value is calculated from the obtained spectral reflectance, the h value is in the range of 140 ° to 200 ° and C * is 5 or more. (The h value represents a hue angle in the L * C * h color system, the C * value represents saturation, and L * represents lightness.)   The spherical organic powder is one or more selected from polymethyl methacrylate, methyl methacrylate crosspolymer, acrylates crosspolymer, acrylates copolymer and (styrene / DVB) copolymer. The makeup cosmetics as described.   The makeup cosmetic according to claim 1 or 2, wherein the particle diameter of the interference pearl agent of the mother powder is 120 µm or less.   The makeup cosmetic according to any one of claims 1 to 3, which contains 0.1 to 2.0% by weight of a paste-like oily component at 25 ° C.