JP2008044920A - Cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic having high transparency, not causing drabness by sweat and sebum, providing excellent smooth feeling at coating and having high adhesion to the skin and sustainability of makeup. <P>SOLUTION: The cosmetic is obtained by formulating a high-aspect-ratio mica powder having 10-20 μm average particle diameter and 70-200 average aspect ratio, preferably a high-aspect-ratio synthetic mica powder. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is blended with a high aspect ratio mica powder having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200, preferably a high aspect ratio synthetic mica powder. The present invention relates to a cosmetic that does not have a dullness due to sebum, has an excellent smooth feel upon application, and has high adhesion to the skin and high makeup sustainability.

  Conventionally, for makeup cosmetics, mica powder has been widely used for purposes such as smooth spreading, adhesion, moldability, etc., after pulverizing naturally produced mica, Synthetic mica (patent documents 1 to 3) is used. In particular, synthetic mica is used for the purpose of a transparent finish because it does not have whiteness affected by iron oxide, which is an impurity found in natural mica, particularly dullness due to sweat and sebum.

Patent 2131864 Patent No. 2132089 Patent 3010390

  Conventional mica powder has an average particle diameter in the range of 1 to 20 μm, and most of the aspect ratio is 20 to 40, up to 70. In addition, some layers have a shape that overlaps, and when these layers are applied on the skin, they cleave and give a feeling of slipping. In terms of transparency, smooth feel during application, adhesion, and makeup persistence, satisfactory products have not yet been obtained.

  Therefore, as a result of intensive studies, the present inventor has already found that the high aspect ratio mica powder having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200 has been very thin and has a thickness of 100 to 140 nm. Since the structure is maintained, it has been found that it is excellent in transparency, can give a smooth feel from the moment it is applied to the skin, and is excellent in adhesion and makeup sustainability. In addition, by using a high aspect ratio synthetic mica powder, it has been found that cosmetics that are free of color dullness due to sweat and sebum and that have excellent coloration and transparency sustaining effects can be obtained, and the present invention is completed. It came.

  That is, the present invention has a high transparency by blending a high aspect ratio mica powder having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200, preferably a high aspect ratio synthetic mica powder, There is no dullness due to sweat or sebum, it has excellent smooth feel when applied, and it has high adhesion to the skin and high makeup sustainability.

  As described above, the high aspect ratio mica powder having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200 has a very thin thickness of 100 to 140 nm and maintains an already cleaved structure. Therefore, it is clear that it is excellent in transparency, can give a smooth feel from the moment it is applied to the skin, and has excellent adhesion and makeup sustainability.

Hereinafter, the present invention will be described in detail.
The high aspect ratio mica powder used in the cosmetic of the present invention is preferably a high aspect ratio synthetic mica powder, which is obtained by an intercalation method using talc and alkali metal fluorosilicate as starting materials, or silicic anhydride , Mixed with aluminum oxide, magnesium oxide and potassium silicofluoride, or mixed with potassium carbonate, melted, crystallized, crystallized, pulverized, dried, etc. Is a powder having an average aspect ratio of 70 to 200. Further, by using this high aspect ratio synthetic mica powder, it is possible to obtain a cosmetic that is free of color dullness due to sweat and sebum and has excellent color development and transparency sustaining effects.

  In the present invention, the average particle diameter represents an average particle diameter measured by an electron microscope observation and a particle size distribution measurement method using laser diffraction / scattering.

  In the present invention, the aspect ratio is determined by dividing the average particle diameter by the thickness of the particles, and the average aspect ratio of the mica powder used in the present invention is 70 to 140. Compared to this, it shows a very high value, and therefore, it is possible to obtain a cosmetic that is excellent in transparency, can give a smooth feel from the moment it is applied to the skin, and has excellent adhesion and makeup sustainability. Can do.

  The high aspect ratio synthetic mica powder having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200 used in the present invention can be obtained by a generally known synthetic mica production method. SUBMICA FL [manufactured by LCW] can be used.

The high aspect ratio synthetic mica powder used in the cosmetic of the present invention may or may not be subjected to various conventionally known surface treatments. Examples of water-repellent surface treatments include, for example, methylhydrogenpolysiloxane treatment, silicone resin treatment, silicone gum treatment, acrylic silicone treatment, organosilicone treatment such as fluorinated silicone treatment, zinc stearate, acylated amino acid metal salt treatment Fluorine such as metal soap treatment, silane coupling agent treatment, silane treatment such as alkyl silane treatment, organic titanate treatment, organic aluminate treatment, perfluoroalkyl silane, perfluoroalkyl phosphate ester salt, perfluoropolyether treatment Compound treatment, amino acid treatment such as N-lauroyl-L-lysine treatment, oil treatment such as squalane treatment, or acrylic treatment such as alkyl acrylate treatment, etc. can be used, and one or more of these can be used in combination. That. Examples of the hydrophilic surface treatment include agar treatment, deoxyribonucleic acid treatment, lecithin treatment, polyacrylic acid treatment, silica treatment, alumina treatment or zirconia treatment.

  In the cosmetic of the present invention, the composite pigment can be blended in the range of 0.1 to 99% by mass with respect to the total amount of the cosmetic.

  In the cosmetics of the present invention, oil agents, surfactants, pigments, preservatives, fragrances, moisturizers, ultraviolet absorbers, salts, solvents, resins, antioxidants, chelating agents, neutralizing agents that are usually used in cosmetics. Various components such as a pH adjuster, 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, jojoballow, 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; diglyceryl myristate; 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 powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzoguanamine powder, poly Tetrafluoroethylene powder, polymethylmethacrylate powder, cellulose, silk powder 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, magnesium stearate, Zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, sodium cetyl phosphate, etc .; as colored pigments, inorganic red pigments such as iron oxide, iron hydroxide, iron titanate inorganic red pigments, γ-iron oxide, etc. Pigment 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 and cobalt titanate Inorganic green pigments, inorganic blue pigments such as bitumen and ultramarine blue, 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 lacquering natural dyes, and these Synthetic resin powders, etc., which are composites of the above powders; Pearl pigments include titanium oxide coated mica, titanium oxide coated mica, bismuth oxychloride, bismuth oxychloride coated bismuth oxychloride, talc coated talc, fish scale foil, titanium oxide coated Colored mica etc .; Metal powder pigments include aluminum powder, copper powder, stainless powder It includes powders selected from the 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.

  As the cosmetics of the present invention, foundations, makeup base materials, white powder, lipsticks, lipstick base materials, concealers, blushers, eye shadows, eye shadow base materials and the like are preferable. Examples of the dosage form of the cosmetic of the present invention include powders, solid forms, sticks, multi-layer separation types, solid emulsion forms, pouring, creams, and emulsions, but are not particularly limited.

  The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto. The evaluation in each example and comparative example is a case where 10 female panelists are used and the test product is used and the feeling of use is answered in a questionnaire format. The score was 5 and the average score of the panelists was used as the evaluation result. Therefore, the higher the score, the better the evaluation.

[Example 1]
Production Example of High Aspect Ratio Synthetic Mica Powder Potassium silicofluoride is mixed in a proportion of 20% by weight of the total amount of talc having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200, and put into a magnetic crucible. And kept in an electric furnace at 800 ° C. for 1 hour. The average particle size of the obtained powder was 18.4 μm (measured using a laser diffraction particle size distribution meter), the appearance was white, and when observed with a scanning electron microscope, a plate as shown in FIG. 1 and FIG. It had a particle shape.

[Example 2, Comparative Examples 1-3]
Using the high aspect ratio mica powder prepared in Example 1, a powdery eye shadow was prototyped according to the formulation and production method shown in Table 1. The unit of the blending amount is mass%.

Production Method All ingredients were mixed well using a mixer. The obtained mixed powder was filled in a container to obtain a product.

  From the results in Table 1, it can be seen that Example 2 of the present invention shows excellent characteristics in each evaluation item. On the other hand, Comparative Examples 1 and 2 had a considerably lower aspect ratio than that of the Examples, and the evaluation was low overall because they were naturally produced powders. Moreover, since Comparative Example 4 was synthetic mica, the absence of dullness due to sweat and sebum was highly evaluated. However, since the aspect ratio was lower than that of the Example, the transparency, smoothness during application, Low values in terms of adhesion and makeup sustainability. The powdered eye shadow of Example 2 was excellent in all of transparency, smoothness at the time of application, adhesion to the skin, makeup persistence, no dullness due to sweat and sebum.

[Example 3, Comparative Examples 4 to 6]
A powdered blusher was prototyped according to the formulation and manufacturing method shown in Table 2. The unit of the blending amount is mass%.

Production Method All ingredients were mixed well using a mixer. The obtained mixed powder was filled in a container to obtain a product.

  From the results in Table 2, it can be seen that Example 3 of the present invention shows excellent characteristics in each evaluation item. On the other hand, Comparative Examples 1 and 2 had a considerably lower aspect ratio than that of the Examples, and the evaluation was low overall because they were naturally produced powders. Moreover, since Comparative Example 4 was synthetic mica, the absence of dullness due to sweat and sebum was highly evaluated. However, since the aspect ratio was lower than that of the Example, the transparency, smoothness during application, Low values in terms of adhesion and makeup sustainability. The powdered blusher of Example 3 was excellent in all of transparency, good color development, smoothness during application, makeup persistence, sweat and no dullness due to sebum.

[Example 4, Comparative Example 7]
An O / W-type eye shadow base material was prototyped according to the formulation and manufacturing method shown in Table 3. 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, cooled slowly, and then filled into a container to obtain a product.

  The eye shadow base material of Example 4 of the present invention was excellent in all of transparency, good color development, smoothness during application, makeup persistence, no dullness due to sweat and sebum. Further, when Example 4 and Comparative Example 7 were each used as a base for an oil-based solid eye shadow, as shown in FIG. 3, those using the eye shadow base material of Example 4 had no eye shadow and makeup. Sustainability was good.

Example 5
A powder foundation was prototyped according to the formulation and manufacturing method shown in Table 4. The unit of the blending amount is mass%.

Manufacturing method While mixing component A well using a mixer, add component B, which has been uniformly heated and dissolved, and mix further, pulverize, pass through a mesh, and then mold into a mold using a mold And got the product.

  The obtained powder foundation was highly transparent, excellent in smooth feel during application, and excellent in all of adhesion to the skin, makeup persistence, no dullness due to sweat and sebum.

Example 6
A liquid foundation was produced by the formulation and production method shown in Table 5. The unit of the blending amount is mass%.

  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 liquid foundation was high in transparency, excellent in smooth feel at the time of application, and excellent in all of adhesion to the skin, makeup persistence, no dullness due to sweat and sebum.

Example 7
W / O-type sunscreen cosmetics were prototyped according to the formulations and manufacturing methods shown in Table 6. The unit of the blending amount is mass%.

Production Method 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 resulting W / O-type sunscreen cosmetics are highly transparent, have a smooth feel when applied, and are excellent in all of adhesion to the skin, makeup persistence, no dullness due to sweat and sebum. It was.

Example 8
An O / W-type cosmetic base material was prototyped according to the formulation and manufacturing method shown in Table 7. 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, cooled slowly, and then filled into a container to obtain a product.

  This makeup base material had good makeup paste, high transparency, excellent smooth feel when applied, and excellent in all of adhesion to the skin, makeup persistence, sweat and no dullness due to sebum. In addition, when the foundation was used from above, it was difficult for kinks to occur after time and the foundation looked bright.

Example 9
A base material for lipstick was produced according to the formulation and manufacturing method shown in Table 8. The unit of the blending amount is mass%.

Production Method Component B was heated to 60 ° C. and mixed well. Among components C, components other than spherical magnesium silicate were added and well dispersed. Component A was added thereto and dissolved using a microwave oven, and then mixed well using three rollers. Spherical magnesium silicate was added here, and it was again heated and dissolved using a microwave oven, poured into a mold, and solidified by cooling. This was set in a lipstick container to obtain a product.

  This base material for lipstick was highly transparent, had good lipstick paste, had a smooth feel when applied, and was excellent in all of adhesion to the skin and makeup sustainability. Further, when lipstick was used from above, it was difficult to sway after the passage of time and had an effect of excellent lipstick color development. Effectively concealed the downspout of the lips.

  Example of scanning electron micrograph of the composite pigment produced in Example 1   Example of scanning electron micrograph of the composite pigment produced in Example 1   Example of photographs showing the difference in the effect of shading and makeup sustainability when using the eye shadow base material prepared in Example 4 and Comparative Example 7

Claims (2)

  A cosmetic comprising a high aspect ratio mica powder having an average particle diameter of 10 to 20 μm and an average aspect ratio of 70 to 200.   A cosmetic characterized in that the high aspect ratio mica powder is a high aspect ratio synthetic mica powder.