JP2013231020A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cosmetic excellent in soft focus effect and matting (delustering) effect of skin, and also excellent in temporal stability of smooth feeling without sticky feeling.SOLUTION: A cosmetic is combined with spherical cellulose powder in which the average primary particle diameter is ≤5 μm, the primary particle diameter of ≥90 vol% particles of the whole particles is in the range of 2-7 μm, the ratio (longest diameter/shortest diameter) of the longest diameter to the shortest diameter of spheres is in the range of 1.0-2.5, the haze value of 20 mass% silicon oil paste is ≥70%, and the total light transmission rate is ≥95%.

Description

    In the present invention, the average primary particle diameter is 5 μm or less, and the primary particle diameter of 90% by volume or more of all particles is in the range of 2 to 7 μm, and the ratio of the longest diameter to the shortest diameter of the sphere (longest diameter / shortest diameter) ) Is in the range of 1.0 to 2.5, a spherical cellulose powder having a 20% by mass silicon oil paste having a haze value of 70% or more and a total transmittance of 95% or more is blended. Further, the present invention relates to a cosmetic that has an excellent soft focus effect and has an effect of concealing skin texture, wrinkles, and vertical lines on the lips. Further, since the oil absorption of the spherical cellulose powder is as high as 200 to 300 ml / g, it is excellent in the effect of absorbing sebum and matting the skin, and supporting the oil agent on the spherical cellulose powder. Therefore, it is possible to obtain a cosmetic that has no stickiness, has a smooth feel, and has excellent long-term stability.

  Conventionally, many cosmetics exhibiting a soft focus effect have been developed. For example, makeup cosmetics (Patent Document 1) in which a flaky powder is coated with colored pigment-containing titanium oxide and the outermost layer is coated with a powder that diffuses and reflects light, and an average particle size of 0. A cosmetic comprising spherical particles coated with a plurality of polymers having a difference in refractive index of 0.05 or more and a refractive index of 1.3 to 1.7 in a range of 5 to 100 μm (Patent Document 2), a substrate, A spherical powder obtained by subjecting a spherical powder to be surface treated, and using at least two kinds of surface treatment agents having a refractive index higher than that of the spherical powder serving as the substrate, and sequentially treating them in order of increasing refractive index. And a technique (Patent Document 3) in which a surface-treated spherical powder characterized by the above is prepared and contained in a cosmetic.

JP-A-8-188723 JP 2001-294513 A JP 2005-154279 A

  All of the conventional inorganic materials exhibiting a soft focus effect retain the shape as primary particles, and obtain optical characteristics by diffusing light in the surface treatment layer. In this case, for example, if the soft focus effect is used to optically blur the texture and wrinkles, it is necessary that the particles exist in the texture and wrinkles at a high concentration, but depending on the size and shape of the particles In many cases, the particles are localized on the skin, and it is not always possible to effectively hide skin troubles.

  Therefore, as a result of intensive studies, the present inventors have found that the average primary particle diameter is 5 μm or less, the primary particle diameter of 90% by volume or more of all the particles is in the range of 2 to 7 μm, and the spherical longest diameter and shortest diameter are Spherical cellulose in which the ratio (longest diameter / shortest diameter) is in the range of 1.0 to 2.5, the haze value of a 20% by mass silicon oil paste is 70% or more, and the total transmittance is 95% or more. It was found that the powder is non-locally adhered to the skin and effectively hides skin troubles.

  That is, in the present invention, the average primary particle diameter is 5 μm or less, the primary particle diameter of 90% by volume or more of all particles is in the range of 2 to 7 μm, and the ratio of the longest spherical diameter to the shortest diameter (longest diameter / The shortest diameter is in the range of 1.0 to 2.5, and a spherical cellulose powder having a haze value of 20% by mass of silicon oil paste of 70% or more and a total transmittance of 95% or more is blended. In cosmetics.

  The second aspect of the present invention resides in the above-described cosmetic excellent in the effect of absorbing sebum and matting the skin because the oil absorption of the spherical cellulose powder is as high as 200 to 300 ml / g.

  According to a third aspect of the present invention, since the oil agent can be supported on the spherical cellulose powder, the cosmetic composition described above has a smooth feeling without stickiness and excellent long-lasting stability.

  As described above, the present invention has an average primary particle diameter of 5 μm or less, a primary particle diameter of 90% by volume or more of all particles is in the range of 2 to 7 μm, and the ratio of the longest diameter to the shortest diameter of the sphere. Spherical cellulose powder having a (longest diameter / shortest diameter) in the range of 1.0 to 2.5, a 20 mass% silicon oil paste having a haze value of 70% or more and a total transmittance of 95% or more. By blending the body, it is clear that a cosmetic with an excellent soft focus effect and an excellent effect of concealing skin texture, wrinkles, and vertical lines on the lips can be obtained. Further, since the oil absorption of the spherical cellulose powder is as high as 200 to 300 ml / g, it is excellent in the effect of absorbing sebum and matting the skin, and supporting the oil agent on the spherical cellulose powder. Therefore, it is possible to obtain a cosmetic that has no stickiness, has a smooth feel, and has excellent long-term stability.

Hereinafter, the present invention will be described in detail.
Specific embodiments of the spherical cellulose powder used in the cosmetic material of the present invention and the cosmetic material containing it will be described.

In order to produce the spherical cellulose powder used in the cosmetic of the present invention, the following procedure is adopted.
1) A calcium carbonate slurry is mixed with an alkaline anionic polymer aqueous solution as a coalescence inhibitor and stirred well.
2) Viscose and the aqueous solution of 1) above are mixed to produce a fine particle dispersion of viscose.
3) The fine particle dispersion of viscose of 2) is heated to coagulate the viscose in the dispersion, and then neutralized with an acid to produce cellulose fine particles.
4) The cellulose fine particles are separated from the mother liquor, washed with water and dried as necessary.

  Here, viscose is a raw material of cellulose, and those having a gamma value of 30 to 100% by mass and an alkali concentration of 4 to 10% by mass are optimally used. Examples of the water-soluble anionic polymer include sodium polyacrylate and sodium polystyrene sulfonate. Calcium carbonate used as a coalescence inhibitor has the effect of preventing the coalescence of viscose fine particles in the dispersion and reducing the particle size of the cellulose fine particles. The crystal form of cellulose in the spherical cellulose powder thus obtained was cellulose type II.

  An example of the calcium carbonate slurry used here is Tama Pearl TP-221GS manufactured by Okutama Kogyo Co., Ltd.

  The spherical cellulose powder used in the present invention has an average primary particle diameter in the range of 5 μm or less, preferably a maximum particle diameter in the range of 15 μm or less, particularly in the range of the average primary particle diameter of 2 to 5 μm, The primary particle diameter of 90% by volume or more of all particles is preferably in the range of 2 to 7 μm. If it is this range, there exists a merit which the target optical effect is acquired effectively. When the average primary particle size is smaller than 2 μm, there is a concern that the production efficiency is deteriorated and the cost is increased. On the other hand, when the average primary particle size is larger than 5 μm, there is a concern that a sufficient optical effect cannot be obtained because the light diffusion effect is poor.

  As a method for measuring the primary particle size of the spherical cellulose powder used in the present invention, a method of image-wise extraction and determination from a photograph observed with an electron microscope, and a particle size distribution measuring device such as a laser diffraction particle size distribution meter are used. The measurement method may be used, but a measurement method using a laser diffraction particle size distribution meter is more preferable.

  Examples of the evaluation method of the soft focus function of the spherical cellulose powder used in the present invention include a haze / transmittance meter, a variable angle spectrophotometric system, and a three-dimensional variable angle photometer. It is preferable to use a method of measuring the transmitted light rate and the diffuse transmitted light rate with a rate meter.

The spherical cellulose powder used in the present invention can be subjected to various conventionally known surface treatments. Examples of this surface treatment include the following treatments. A combination of these processes can also be used.
a) Fluorine compound treatment: perfluoroalkyl phosphate treatment, perfluoroalkylsilane treatment, perfluoropolyether treatment, fluorosilicone treatment, fluorinated silicone resin treatment, etc. b) Silicone treatment: methyl hydrogen polysiloxane Treatment, dimethylpolysiloxane treatment, vapor phase tetramethyltetrahydrogencyclotetrasiloxane treatment, etc. c) pendant treatment: treatment to add alkyl chain after vapor phase silicone treatment d) silane coupling agent treatment e) titanium Treatment with coupling agent f) Treatment with aluminum coupling agent g) Treatment with oil agent h) Treatment with N-acylated lysine i) Treatment with polyacrylic acid j) Treatment with metal soap ... Treatment with stearate or myristate k) Acrylic Resin treatment l) Metal oxide Management

  The spherical cellulose powder used in the present invention has a good touch, a transparency and a texture similar to that of the skin, and has an effect of making the unevenness, wrinkles and stains of the skin inconspicuous when blended in cosmetics. You can get a fee. In this case, as a compounding quantity, 0.1-100 mass% is preferable, More preferably, it is 0.5-60 mass%.

  In the cosmetics of the present invention, oils, surfactants, pigments, preservatives, fragrances, moisturizers, oils, ultraviolet absorbers, salts, solvents, resins, antioxidants, chelating agents, Various components such as a hydrating agent, a pH adjusting agent, an insect repellent, and a physiologically active component can be used as long as the object of the present invention is not impaired.

  Examples of oils include avocado oil, linseed oil, almond oil, ibotarou, eno oil, olive oil, cacao butter, kapok wax, kaya oil, carnauba wax, candelilla wax, kyounin oil, hydrogenated oil, wheat germ oil, sesame oil, rice Germ oil, rice bran oil, sugarcane wax, sasanqua oil, safflower oil, shea butter, cinnamon oil, cinnamon oil, jojoba wax, shellac oil, turtle oil, soybean oil, tea seed oil, camellia oil, evening primrose oil, corn oil, rapeseed Oil, Japanese Kiri oil, Nukarou, Germ oil, Persic oil, Palm oil, Palm kernel oil, Castor oil, Hardened castor oil, Castor oil fatty acid methyl ester, Sunflower oil, Grape oil, Bayberry wax, Jojoba oil, Macadamia nut oil, Beeswax, Mink oil, cottonseed oil, cotton wax, owl, owl kernel oil, montan wax Coconut oil, hydrogenated coconut oil, tricoconut oil fatty acid glyceride, peanut oil, lanolin, liquid lanolin, reduced lanolin, lanolin alcohol, hard lanolin, lanolin acetate, lanolin fatty acid isopropyl, hexyl laurate, POE lanolin alcohol ether, POE lanolin alcohol acetate, Lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, egg yolk oil, etc .; hydrocarbon oils such as ozokerite, squalane, squalene, ceresin, paraffin, paraffin wax, liquid paraffin, pristane, polyisobutylene, microcrystalline wax, petrolatum, etc .; high grade Examples of fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, oleic acid, linoleic acid, Nolenic acid, arachidonic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), isostearic acid, 12-hydroxystearic acid, etc .; higher alcohols include lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol, hexa Decyl alcohol, oleyl alcohol, isostearyl alcohol, hexyl decanol, octyldodecanol, cetostearyl alcohol, 2-decyltetradecinol, cholesterol, phytosterol, POE cholesterol ether, monostearyl glycerol ether (batyl alcohol), monooleyl glyceryl ether (Ceracyl alcohol), etc .; As ester oils, diisobutyl adipate, 2-adipate 2- Hexyldecyl, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, isononyl isononanoate, trimethylolpropane triisostearate, ethylene glycol di-2-ethylhexanoate, 2-ethylhexane Cetyl acid, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, octyldodecyl gum ester, oleyl oleate, octyldodecyl oleate, decyl oleate, isononyl isononanoate, Neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, isocetyl stearate, butyl stearate Diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptyl undecyl palmitate, cholesteryl 12-hydroxystearylate, Dipentaerythritol fatty acid ester, isopropyl myristate, octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, N-lauroyl-L-glutamate-2- Octyldodecyl ester, diisostearyl malate, etc .; glyceride oils include acetoglyceryl, glyceryl triisooctanoate, triisostearate Seryl, tri (capryl / capric acid) glycerin, glyceryl triisopalmitate, glyceryl monostearate, glyceryl di-2-heptylundecanoate, glyceryl trimyristate, diglyceryl myristate, silicone oil, dimethylpoly Examples include siloxane, biphenylsiloxane, decamethylcyclopentasiloxane, methyltrimethicone, alkyl-modified silicone, and fluorosilicone. Also included are polyhydric alcohols such as glycerin, isoprene glycol, 1,3-butylene glycol, dipropylene glycol, propylene glycol, diglycerin, maltitol, and malbit liquid.

  As the pigment, a conventionally known pigment can be used, and its shape (spherical, rod-like, needle-like, plate-like, indeterminate shape, scale-like, spindle-like, etc.), particle size (smoke-like, fine particles, pigment grade, etc.), particle Regardless of the structure (porous, non-porous, etc.), any of them can be used. For example, inorganic powder, organic powder, surfactant metal salt powder, colored pigment, pearl pigment, metal powder pigment Specifically, examples of the inorganic powder include titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, mica, Kaolin, sericite, muscovite, synthetic mica, phlogopite, sauroite, biotite, lithia mica, silicic acid, anhydrous silicic acid, aluminum silicate, magnesium silicate, aluminum silicate magnesi , Calcium silicate, barium silicate, strontium silicate, metal tungstate, hydroxyapatite, vermiculite, hydrite, bentonite, montmorillonite, hectorite, zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, nitriding Boron, boron nitride, silica, etc .; organic powders include polyamide powder, polyester powder, polyethylene powder, polypropylene powder, silicone resin powder, silicone elastomer spherical powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzoguanamine powder, Polytetrafluoroethylene powder, polymethylmethacrylate powder, cellulose, silk pow -Nylon powder, 12 nylon, 6 nylon, acrylic powder, acrylic elastomer, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, vinyl resin, urea resin, phenol resin, fluororesin, silicon resin, acrylic resin , Melamine resin, epoxy resin, polycarbonate resin, microcrystalline fiber powder, starch powder, lauroyl lysine, etc .; surfactant metal salt powder (metal soap) includes zinc stearate, aluminum stearate, calcium stearate, stearic acid Magnesium, zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, sodium cetyl phosphate, etc .; as colored pigments, inorganic red pigments of iron oxide, iron hydroxide, iron titanate, inorganics such as γ-iron oxide Brown Materials, inorganic yellow pigments such as yellow iron oxide and ocher, inorganic black pigments such as black iron oxide and carbon black, inorganic purple pigments such as manganese violet and cobalt violet, chromium hydroxide, chromium oxide, cobalt oxide, cobalt titanate Inorganic green pigments such as bituminous and ultramarine blue pigments, fine particle powders such as fine particle titanium oxide, fine particle cerium oxide and fine particle zinc oxide, those obtained by raked tar dyes, those obtained by rake natural dyes, And synthetic resin powder in which these powders are compounded; pearl pigments include titanium oxide coated mica, titanium oxide coated mica, bismuth oxychloride, bismuth oxychloride coated, bismuth oxychloride, titanium oxide coated talc, fish scale foil, oxidized Titanium-coated colored mica, etc .; metal powder pigments include aluminum powder, copper powder, stainless steel powder It includes powders selected from Zehnder like. Further, as tar pigments, Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228 , Red 230, red 401, red 505, yellow 4, yellow 5, yellow 202, yellow 203, yellow 204, yellow 401, blue 1, blue 2, blue 201, blue 404, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, Orange No. 207, etc .; , Pigments selected from calsamine, bradylin, crocin and the like. These powders may or may not be subjected to various surface treatments as described above.

  In the cosmetic of the present invention, it is also preferable to use in combination with the above composite pigment in combination with a silicone elastomer rich in light scattering properties. Examples of the silicone elastomer used herein include organosiloxaci elastomers composed of spherical powder having a primary particle size of 1 to 100 μm (for example, Toray Fill E series manufactured by Toray Dow Corning Silicone) and amorphous silicone paste ( For example, KSG series manufactured by Shin-Etsu Chemical Co., Ltd. may be mentioned. A combination with polyurethane powder and silica beads is also useful.

  The cosmetics of the present invention include various cosmetics such as makeup cosmetics, basic cosmetics, hair cosmetics, fragrances, body cosmetics, etc., especially foundations, blushers, white powders, face powders, lipsticks, eye shadows. Suitable for eyebrow, mascara, nail color, body powder, sunscreen and deodorant.

  As the form of the cosmetic of the present invention, conventionally known dosage forms such as powder form, emulsion, cream form, stick form, solid form, spray, multilayer separation type and the like can be used.

  The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto.

(Production Example: Production Example of Spherical Cellulose Powder with an Average Primary Particle Diameter of 2 to 5 μm)
130 parts by mass of viscose (cellulose concentration 9.5% by mass, gamma value 50, alkali concentration 5% by mass), 730 parts by mass of a 10% by mass aqueous solution of sodium polyacrylate solution (polymerization degree 120,000), and 50% calcium carbonate Mass parts were mixed at 1800 rpm for 30 minutes at room temperature, then heated to 80 ° C. over 20 minutes, and further mixed at 80 ° C. for 30 minutes to obtain solidified particles. The coagulated particles were filtered with a glass filter, neutralized with 0.5% by mass hydrochloric acid, washed with excess water and isopropyl alcohol, and then dried under reduced pressure to obtain spherical cellulose powder. As a result of measuring the obtained spherical cellulose powder with a laser diffraction particle size distribution meter, the average primary particle diameter was 3.9 μm, and the primary particle diameter of 90% by volume or more of all particles was in the range of 2 to 6 μm. there were. The oil absorption amount of oleic acid, which is a sebum component, was measured with reference to the JIS pigment test method to be 254.0 ml / g.

(Production comparative example: Production example of spherical cellulose powder having an average primary particle diameter of 10 to 13 μm)
130 parts by mass of viscose (cellulose concentration 9.5% by mass, gamma value 50, alkali concentration 5% by mass), 390 parts by mass of a 10% by mass aqueous solution of sodium polyacrylate solution (polymerization degree 120,000), 14 calcium carbonate Mass parts were mixed at 300 rpm for 30 minutes at room temperature, then heated to 80 ° C. over 20 minutes, and further mixed at 80 ° C. for 30 minutes to obtain solidified particles. The coagulated particles were filtered with a glass filter, neutralized with 0.5% by mass hydrochloric acid, washed with excess water and isopropyl alcohol, and then dried under reduced pressure to obtain spherical cellulose powder. As a result of measuring the obtained spherical cellulose powder with a laser diffraction particle size distribution analyzer, the average primary particle size was 12.5 μm. The oil absorption amount of oleic acid, which is a sebum component, was measured with reference to the JIS pigment test method and found to be 42.5 ml / g.

Hereinafter, evaluation of the soft focus effect of the spherical cellulose powder is shown.
(1) Measurement of haze value 0.4 g of the obtained spherical cellulose powder was dispersed in 1.6 g of silicone marketed under the name SF8417 from Toray Dow Corning, and Hoover Mara (100 rpm × 3 times) was dispersed. A paste was prepared. A sample coated on a glass plate so that the film thickness of the paste was 25 μm was measured using a haze / transmittance meter. The haze value is expressed by the following formula.
Haze value (hereinafter abbreviated as H) = {diffuse transmittance (hereinafter abbreviated as Td) / total transmittance (hereinafter abbreviated as Tt)} × 100
Here, the greater the value of Tt, the greater the amount of transmitted light, indicating that there is a sense of transparency. The greater the value of Td, the greater the amount of scattered light, indicating that the blurring effect is high, and the value of H is large. It shows that there is a soft focus effect.

  From the result of Table 1, the value of the total transmittance Tt of the spherical cellulose powder (average primary particle size: 3.9 μm) produced in the production example is 97.9%, and the spherical cellulose produced in the production comparative example When compared with 98.2% of the powder (average primary particle size: 12.5 μm), the value of the total transmittance was almost the same, suggesting that both are excellent in transparency. In addition, the diffuse transmitted light rate of the manufacturing example is 83.3%, and when compared with 32.5% of the manufactured comparative example, the value of the diffuse transmitted light rate is very high. It turned out to be excellent. Further, the haze value of the production example was 85.1%, which was high when compared with the haze value of 33.1% of the production comparative example, and it was found that the soft focus function was excellent. In the production examples, it is considered that the light diffusibility can be improved while maintaining the transparency by controlling the average primary particle size to be small.

[Example 1, Comparative Examples 1-3]
Production of Makeup Base According to the formulation and production method shown in Table 2, the time when under makeup was obtained. The unit of the blending amount is mass%.
In addition, for each makeup base, use 10 female panelists to have a test product used, and have the user feel the questionnaire in the form of a questionnaire. 0 points for poor evaluation and 5 points for good evaluation. And the average score of the panelists was used as the evaluation result. Therefore, the higher the score, the better the evaluation.

注１：ＫＳＧ−２１０（信越化学工業社製）
注２：ＫＦ−６０２８（信越化学工業社製）
注３：ＫＳＧ−１６（信越化学工業社製）

Note 1: KSG-210 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Note 2: KF-6028 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Note 3: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)

Production Method Ingredient C is dispersed in ingredient A and stirred well. Component B was added and stirred, and the resulting makeup base was filled in a container to obtain a product.

  From the results of Table 1, it can be seen that the examples of the present invention show excellent characteristics in each evaluation item. On the other hand, Comparative Example 1 was inferior to the Examples in terms of the soft focus effect and the matte feeling, although the feel during application was good. This is probably because the absorbent cellulose powder obtained in Production Comparative Example 1 has a lower haze value and oil absorption than the absorbent cellulose powder obtained in Production Example 1. . Comparative Example 2 uses spherical porous silica, but when dispersed in silicone, the respective refractive indexes are similar, so the soft focus effect cannot be evaluated, and also in terms of feel, The result was inferior. In Comparative Example 3, talc, which is an extender pigment, was used, but although good results were shown for the feel, evaluation was not improved in other respects.

  Using the spherical cellulose powder obtained in Example 1, a loose powder was prototyped according to the formulation and manufacturing method shown in Table 3. The unit of the blending amount is mass%.

Production Method While component A was mixed well using a mixer, component B was gradually added and further mixed, then pulverized, passed through a mesh, and filled into a container to obtain a product.

  The resulting loose powder is less noticeable for texture and wrinkles, absorbs sebum, and makes the skin matte (matte). Despite containing a lot of oil, oil is added to the spherical cellulose powder. Since it can be supported, it has a smooth feel without stickiness.

  Using the spherical cellulose powder obtained in Example 1, an O / W-type liquid foundation was prototyped according to the formulation and production method shown in Table 4. The unit of the blending amount is mass%.

Production Method Components A and C were mixed well at 80 ° C.
Component B was added to component C under stirring and mixed well, then component A was gradually added from above, slowly cooled, and then filled into a container to obtain a product.

The obtained O / W type liquid foundation had a smooth feel with little texture and wrinkles, excellent sebum absorption, excellent matting effect, and no stickiness.
In addition, the stability over time was excellent.

  Using the spherical cellulose powder obtained in Example 1, a base material for lipstick was prototyped according to the formulation and production method shown in Table 5. The unit of the blending amount is mass%.

Production Method Component B was heated to 60 ° C. and mixed well. Component C was added here and well dispersed. Component A was added thereto, dissolved using a microwave oven, and then mixed well. It was again heated and dissolved using a microwave oven, poured into a mold, and cooled and solidified. This was set in a lipstick container to obtain a product.

  The obtained base material for lipstick effectively masked the lip of the lips. Moreover, the stability over time was also excellent.

  Using the spherical cellulose powder obtained in Example 1, a W / O type liquid foundation was prototyped according to the formulation and production method shown in Table 6. The unit of the blending amount is mass%.

注１：ＢＹ２２−００８Ｍ（東レダウコーニンング社製）
注２：ＫＳＧ−１６（信越化学工業社製）

Note 1: BY22-008M (Toray Dow Corning)
Note 2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)

Production Method Component B was mixed well using a mixer. On the other hand, Component A was heated to 80 ° C. and mixed well so as to be uniform. To this, component B was gradually added with stirring and gradually cooled to 50 ° C. Next, Component C was heated to 80 ° C. and dissolved uniformly, and then slowly cooled to 50 ° C. Component C was added to component A under stirring, further stirred well, and cooled to room temperature. The obtained solution was filled in a container to obtain a product.

    The obtained W / O type liquid foundation had a smooth feel with little texture and wrinkles, excellent sebum absorption, excellent matting effect, and no stickiness. In addition, the stability over time was excellent.

  Using the spherical cellulose powder obtained in Example 1, a body powder was prototyped according to the formulation and manufacturing method shown in Table 7. The unit of the blending amount is mass%.

Production Method Component A was mixed well using a mixer. The obtained powder was filled in a container to obtain a product.

  The obtained body powder was excellent in matting effect and had a smooth feel without stickiness. Moreover, since the fragrance | flavor was carry | supported by the spherical cellulose powder, it was excellent also in the release property. In addition, the stability over time was excellent.

Claims (5)

  The average primary particle size is 5 μm or less, the primary particle size of 90% by volume or more of all particles is in the range of 2 to 7 μm, and the ratio of the longest spherical diameter to the shortest diameter (longest diameter / shortest diameter) is 1. A cosmetic comprising spherical cellulose powder in the range of 0 to 2.5. Contains spherical cellulose powder with 20% silicon oil paste haze value of 70% or more and total transmittance of 95% or more, excellent soft focus effect, skin texture, wrinkles, lips vertical The cosmetic according to claim 1, which has an excellent effect of concealing wrinkles. The cosmetic according to claim 1, comprising spherical cellulose powder having an oil absorption of 200 to 300 ml / g. The cosmetic according to claims 1 to 3, which has an excellent effect of making the skin matte (matte) due to the high oil absorption of the absorbent cellulose powder. The cosmetic according to claim 1, wherein the oil agent is supported on the spherical cellulose, and has a smooth feeling without stickiness and excellent durability.