JPS6141322B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a make-up cosmetic containing a colored processed powder that maintains the surface characteristics of an inorganic powder and has an unprecedented coloring effect. Conventionally used inorganic or organic powders for cosmetics include talc, kaolin, titanium dioxide, zinc oxide, sericite, synthetic mica, muscovite, magnesium carbonate, calcium carbonate, bentonite, magnesium silicate, etc. Inorganic powders and organic powders include microcrystalline cellulose, silk powder, nylon powder, polyethylene powder, magnesium stearate, zinc myristate, etc., but most are white to whitish-gray in color. These powders are usually Red No. 226, Red No. 202, Red No. 206,
Organic pigments such as orange No. 203, yellow No. 4 aluminum lake, carbon black, etc. or inorganic pigments such as yellow iron oxide, red iron oxide, purple iron oxide, black iron oxide, ultramarine blue, mango violet, chromium oxide, chromium hydroxide, etc. It is possible to select the desired color of cosmetics by toning by mixing. However, in mixed cosmetics that combine several types of raw materials,
Due to differences in crystal form, affinity, specific gravity, particle size distribution, surface activity, etc. between the powder and pigment, during manufacturing, storage,
It is common for color separation, segregation, color spots, etc. to occur during transportation, which significantly deteriorates the quality of the product. Furthermore, even when cosmetics are actually applied to the skin, the pigments become wet over time due to the oil, water, salt, etc. secreted on the skin surface, so the color becomes darker. Even if it becomes slightly transparent when wet, it still appears white or whitish-gray, which causes color separation on the skin surface, resulting in poor adhesion and a floating feeling on the skin. It was not desirable because it had the disadvantage of As a result of various experimental studies aimed at solving the above-mentioned drawbacks, the present inventors have discovered a cosmetic that does not have these drawbacks. In the present invention, an inorganic powder is dispersed in purified water to which a water-soluble silicate and/or a water-soluble activator has been added, without or using an acid, and a colored powder that has been dissolved in advance with an acid or purified water is dispersed. A solution of a metal compound is added, and then an alkali is added while stirring to adjust the pH to 7.5 to 13.0, and a colored metal hydroxide is deposited on the surface of the inorganic powder.The colored metal hydroxide is then taken out, washed with water, and dried. Processed powder 0.5~98
This article relates to a make-up cosmetic containing %. In the colored processed powder applied to the present invention, the composition ratio of the inorganic powder and the colored metal compound is 1:
A range of 0.01 to 1:0.6 is appropriate, and cosmetics containing more of the former are more susceptible to changes over time, and also have a "lifting" finish, which is the object of the present invention. Not suitable for Furthermore, if the latter is present in large quantities, the "dullness" characteristic of colored metal compounds will be intensified, making it impossible to impart desirable cosmetic effects. The inorganic powder to be applied to the colored processed powder of the present invention is selected from acid-resistant, alkali-resistant, and insoluble powders, such as kaolin, kaolionite, nacrite, detsuite, halloysite, metahalloysite, hectorite, montmorillonite, and hyde. Light, nontronite, saponite, zeolite, bentonite, sericite, birophyllite, vermiculite, brabesite, barlite, waxite, soda feldspar, jadeite, nephelite, foliolite, lepidolite, betalite, mangligonite, Muscovite, phlogopite, biotite, talc,
Examples include transparent inorganic pigments such as quartz, silicon oxide, diatomaceous earth, calcium silicate, magnesium silicate, barium sulfate, and aluminum oxide, and those having an average particle size of 0.2 μ to 50 μ are preferable. Other examples include titanium oxide, zinc oxide, titanium oxide coated mica, bismuth oxychloride, bismuth coated mica, titanium oxide coated talc, and barium sulfate coated titanium oxide. However, when transparent inorganic pigments are blended into cosmetics as colored processed powders, they are significantly superior in terms of cosmetic effects such as consistency between applied color and external color, and how well they blend into the skin (adhesion). What you have is provided. In the colored processed powder used in the present invention, these inorganic powders can be used in combination with the organic powder used when obtaining the colored processed powder described in Japanese Patent Application No. 154947/1983. When an inorganic powder and an organic powder are combined in this way, colored metal hydroxides are deposited on the surfaces of each of the inorganic powder and organic powder as a result of the colored processed powder manufacturing method described below. is obtained. The colored metal compounds that can be applied to the colored processed powder of the present invention include water-soluble ones such as colored metal carbonate compounds, colored metal sulfate compounds, colored metal nitrate compounds, colored metal hydroxide compounds, and colored metal chlorides. More specifically, colored metal carbonate compounds include cobalt carbonate, iron carbonate, chromium carbonate, nickel carbonate, manganese carbonate, etc., and colored metal sulfate compounds include chromium sulfate, cobalt sulfate, and ferric sulfate. , copper sulfate, manganese sulfate, etc. Colored metal nitrate compounds include cobalt nitrate,
Chromium nitrate, nickel nitrate, etc. Colored metal hydroxide compounds include iron hydroxide, chromium hydroxide, nickel hydroxide, cobalt hydroxide, manganese hydroxide, etc. Colored metal chlorides include ferrous chloride,
These include ferric chloride, cobalt chloride, manganese chloride, etc. Next, details of the method for producing colored processed powder applied to the present invention will be explained. Method: Add 10 to 100 parts of one or more inorganic powders to 100 to 1000 parts of purified water at 5° to 80°C using 0.1 to 10% by weight of a water-soluble silicate and/or water-soluble activator while stirring. Gradually add it and continue stirring for another 15 minutes to 3 hours to disperse it, then pre-dissolve it in 100 to 1000 parts of an inorganic acid such as sulfuric acid, nitric acid, or hydrochloric acid (0.01 to 5N) or purified water at 5° to 80°C. The prepared colored metal compound solution is gradually added while stirring so that the ratio of inorganic powder to colored metal compound is 1:0.01 to 1:0.6. While stirring for another 10 minutes to 3 hours (air may be introduced here if necessary) 0.01~
When the powder is moved to an alkaline range of PH7.5 to 13.0 using an alkali such as 1N ammonia water, sodium hydroxide, or potassium hydroxide, colored metal hydroxides are deposited on the surface of the powder (impregnation adsorption). After that, take it out, wash it with water, air dry it or leave it for 40 minutes.
A colored processed powder is obtained by drying with hot air at ~100°C. Method: Add 10 to 500 parts of one or more inorganic powders to 100 to 1000 parts of purified water at 5° to 80°C using 0.1 to 10% by weight of a water-soluble silicate and/or water-soluble activator while stirring. Gradually add the mixture and continue stirring for another 10 minutes to 5 hours to disperse the solution. Add inorganic acid (0.01 to 3N) such as sulfuric acid, nitric acid, or hydrochloric acid to the dispersion solution at 5° to 80°C to adjust the pH to 2.5 to 6.5. Adjust to be in the acidic region of
While thoroughly stirring, a solution of a colored metal compound previously dissolved in 30 to 1000 parts of an inorganic acid (0.01 to 3N) such as sulfuric acid, nitric acid, or hydrochloric acid or purified water is added to the ratio of the inorganic powder to the colored metal compound. 1:0.01～
Gradually add this while stirring so that the ratio is 1:0.6, and then add 0.1 to 5N ammonia water while continuing to stir (air may be introduced here if necessary).
When the powder is brought to an alkaline range of 7.5 to 13.0 using an alkali such as sodium hydroxide or potassium hydroxide, colored metal hydroxides are deposited on the surface of the powder.
After that, take it out, wash it with water and air dry it or dry it at 40°~
A colored processed powder is obtained by drying with hot air at 100°C. The water-soluble silicates used during the manufacturing process of the colored processed powders mentioned above include sodium silicate, sodium orthosilicate, sodium sesquisilicate hydrate, sodium metasilicate, sodium trisilicate, sodium tetrasilicate, potassium metasilicate, metasilicate. Potassium hydrate, potassium disilicate, disilicate hydrate, tetrasilicate hydrate, potassium orthosilicate, lithium orthosilicate, lithium disilicate water, lithium tetrasilicate, ammonium orthosilicate, ammonium metasilicate, and As a water-soluble active agent, P.
OE sorbitan fatty acid ester, POE sorbitol fatty acid ester, POE fatty acid ester, POE higher alcohol ether, POE alkyl allyl ether, POE lanolin derivative, POE castor oil derivative, POE propylene, POE cetyl alcohol ether, POE
Nonionic surfactants with an HLB of about 10 or more such as alkylamine amides, anionic surfactants such as alkali metal salts of higher fatty acids and organic amine salts (e.g. triethanolamine), primary amine salts, quaternary Cationic surfactants such as ammonium salts and imidazole derivatives, amphoteric surfactants of alkylglycine type, betaine type, imidazoline type, polyglycolamine sulfate type and alkylamine sulfonic acid type are used. The use of these water-soluble silicates and water-soluble active agents
In obtaining the colored processed powder used in the present invention, in order to improve the dispersibility of the colored metal compound, there is almost no aggregation as a powder, and a single particle of the colored metal hydroxide is uniformly distributed on the surface of the inorganic powder. As a result, the coloring effect can be improved. For inorganic powders that are poorly compatible with water due to surface wetting problems, it is desirable to use the water-soluble silicate or water-soluble activator described above to improve wetting. In addition, in the present invention, it is also possible to achieve more stable color tone and expand the color tone range by firing the colored processed powder obtained by the method and method at 500° to 1200°C for about 1 to 24 hours. It is.
The firing atmosphere at this time is appropriately selected from a reduced pressure of 700 to 760 Hg, an oxidizing atmosphere, a reducing atmosphere, or an inert atmosphere. The colored processed powder obtained by the above method is not simply an inorganic powder with colored metal hydroxide attached to the surface, but is impregnated with colored metal hydroxide.
These components behave as one, have excellent dispersibility, and are brittle, so a particularly complicated pulverization process is not required. Moreover, it is stable and excellent against acids and alkalis. Next, an example of manufacturing colored processed powder applied to the present invention will be shown. Production Example 1 Add 10 g of POE sorbitan monolaurate to 1000 ml of purified water at 70°C and stir thoroughly for 5 minutes using a jet stirrer to obtain a uniform aqueous activator solution. 100 g of talc is gradually added to this solution and stirred for 30 minutes using a jet stirrer to disperse it, and then a solution prepared by dissolving 13 g of ferric chloride in 100 ml of purified water is gradually added. After stirring for another 20 minutes, 1N
Add sodium hydroxide solution to bring the pH to 9.5, stir for 1 hour, centrifuge sediment, repeat decantation with 1000 ml of water until the pH reaches 7.8, and dry with hot air at 100°C to create a beadless talc color. powder 92
g was obtained. The colored processed powder of Production Example 1 was placed in an oxidizing atmosphere of 800%
When baked at ℃ for 24 hours, a turquoise colored processed powder of talc was obtained. Production example 2 8 ounces of sodium metasilicate in 1000 ml of purified water at 50℃
Add g and stir with a jet stirrer for 20 minutes to make a homogeneous solution. 100 g of bentonite was gradually added to this solution and stirred for 1 hour using a jet stirrer to thoroughly disperse it. To this dispersion, 0.01N hydrochloric acid at 23°C was added to adjust the pH to 6.3. While thoroughly stirring, a solution of 13 g of cobalt carbonate dissolved in 50 ml of 0.1N hydrochloric acid was gradually added and stirred for 30 minutes. Next, air was strongly blown through the nozzle from the compressor, concentrated ammonia water was added, stirred for 1 hour, taken out, centrifuged in a centrifugal separator, and decantated repeatedly until the pH reached 7.6.
After drying at ℃, 96 g of pastel blue colored bentonite powder was obtained. The colored processed powder of Production Example 2 was heated in a weakly reducing atmosphere.
When the powder was fired at 700°C for 9 hours, a Cambridge Blue colored processed powder was obtained. Production example 3 Sodium metasilicate 5 in 1000ml of purified water at 70℃
g. Add 3 g of POE sorbitan monolaurate and stir thoroughly with a jet stirrer for 5 minutes to make a homogeneous solution. Gradually add 100g of calcium silicate to this solution and stir for 30 minutes using a jet stirrer to disperse it.
Next, a solution prepared by dissolving 13 g of ferric chloride in 100 ml of purified water is gradually added. After stirring for an additional 20 minutes, add 1N sodium hydroxide solution.
Adjust the pH to 9.5, stir for 1 hour, and then centrifuge.
Decantation was repeated with 1000 ml of water until the pH reached 7.8, followed by drying with hot air at 100°C to obtain 92 g of blue colored calcium silicate powder. The colored processed powder obtained as described above can maintain the surface characteristics of an inorganic powder like never before, and has an extremely excellent coloring effect, so it can be used in cosmetics, especially pressed powders, dusting powders, etc. When incorporated into make-up cosmetics such as foundations, it does not discolor over time and provides cosmetic effects with excellent adhesion to the skin. It prevents makeup from floating, makes it easy to match the external color with the applied color, and has high tinting power, so you can choose from a wide variety of colors, mainly skin tones. Next, we will show the sensory evaluation of the pressed powder () shown in Example 1 below and the conventional pressed powder (*) after 100 women used it for 3 weeks.

[Table] A: Very good B: Good C: Fair * Pressed powder in which the colored processed powder of Example 1 described later was replaced with talc As can be understood from the above results, Example 1 of the present invention
Compared to conventional pressed powder (), pressed powder (2018) has improved "adhesion to the skin", "consistency of applied color and external color", "color change over time",
It is extremely effective in all sensory evaluation items such as "adhesion to the skin" and "overall evaluation." In addition, the dusting powder of Example 2 of the present invention described later, the foundation of Example 4 of the same,
The face powder of Example 7 was also subjected to sensory evaluation based on comparison with conventional products, and in all cases, better results were obtained with the present invention. The following examples of the cosmetics of the present invention are shown below. The mixing ratio of each component is in parts by weight.

[Table] Pass through the take-out sifter and press to make the product.

[Table] Fill the container with a sifter.
It is considered as a product.

[Table] Pass through the take-out shifter and press
Fill it and make it into a product.

[Table] Fill the container with a sifter.
It is considered as a product.

Claims (1)

[Claims] 1 An inorganic powder is dispersed in purified water to which a water-soluble silicate and/or a water-soluble activator has been added, without or using an acid, and a colored metal compound that has been previously dissolved in an acid or purified water is added to the inorganic powder. Add the solution;
Next, add alkali while stirring to adjust the pH.
7.5 to 13.0, a colored metal hydroxide is deposited on the surface of an inorganic powder, the powder is taken out, washed with water and dried, and a colored processed powder is blended therein.