JPS6155481B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention provides significantly improved powders, compact powders, cake foundations, powder foundations, cheek color powders, eye color powders, and body powders that do not cause transparency, uneven color, or makeup fading due to water, perspiration, etc. Regarding cosmetics such as. Cosmetics such as face powder, compact powder, cake foundation, and powder foundation usually contain cosmetic powders such as inorganic powders such as talc, kaolin, and mica, protein powders, and organic powders such as fish scale foil. It is obtained by mainly blending colorants such as inorganic colorants such as yellow iron oxide and red iron oxide, and organic colorants such as lake and tar pigments. Inorganic powders or inorganic coloring agents, which are ingredients of cosmetics as mentioned above, are usually oxides and have hydroxyl groups on their surfaces, and are therefore hydrophilic. Coloring agents have a small refractive index, so powders or cosmetics made by blending coloring agents easily get wet with water or secretions such as sweat or sebum, and when wet, they become transparent and reveal the skin color. The disadvantage is that the powder or coloring agent is likely to move or aggregate due to sweating, sweating, facial movements, etc., causing makeup to come off. Conventionally, there have been various methods for improving the defects of cosmetics as described below. i.e. for example magnesium stearate,
There is a method in which powder is treated with a surfactant such as zinc laurate or lecithin, and this powder is blended into cosmetics as a cosmetic powder. However, in such a method, although the resulting cosmetics are improved in terms of makeup deterioration, they have the disadvantage that they become wet with water, sweat, etc. and become transparent, revealing the color of the skin. On the other hand, there is a method in which powder is treated with a silyl compound, an alcohol compound, etc. to protect the hydroxyl groups on the surface of the powder, and this powder is blended into cosmetics. However, in such a method, although the transparency of the resulting cosmetic due to wetting is improved, it has the disadvantage that it has poor adhesion to the skin and is prone to makeup deterioration. In this way, conventional methods improve both the transparency and adhesion of cosmetics when wet, and even when they come in contact with water, sweat, sebum, and other secretions, the skin color does not appear and the makeup does not come off. You can't get a cosmetic without it. As a result of intensive research to obtain cosmetics with improved adhesion and transparency upon wetting, the inventors of the present invention have developed cosmetic powders and/or colorants that are particularly water-repellent and are made of fluorine-containing polymers. Treated with oil repellent,
By incorporating this powder and/or coloring agent into cosmetics, the adhesion and transparency due to wetting are significantly improved, and the color of the scalp is visible even when it comes in contact with water, sweat, sebum, and other secretions. It does not cause uneven coloring, powder does not move or aggregate due to sweating or facial movement, and the makeup does not come off, and the skin feels smooth.
The present invention was achieved by discovering that a cosmetic with excellent covering power can be obtained, and that the powder or colorant does not cause skin irritation. That is, the present invention provides a cosmetic composition mainly composed of cosmetic powder and colorant, which contains cosmetic powder and/or colorant treated with a water- and oil-repellent agent made of a fluorine-containing polymer. It is a cosmetic product characterized by the following. The cosmetic of the present invention can be made transparent by water, perspiration, etc.
This is a significantly improved cosmetic product that does not cause color unevenness or makeup fading, and is extremely useful for powders, compact powders, cake foundations, powder foundations, cheek color powders, eye color powders, body powders, etc. . The cosmetic of the present invention is composed of cosmetic powder and colorant as main ingredients. As the cosmetic powder used here, any commonly used cosmetic powder may be used, and examples thereof include the following powders. That is, for example, talc, kaolin, mica, titanium mica, titanium oxide, iron oxide, magnesium oxide, zinc monoxide, zinc dioxide, heavy or light calcium carbonate, dibasic calcium phosphate, aluminum hydroxide, barium sulfate, silica alumina, Silica gel, carbon black, antimony oxide,
Examples include inorganic powders such as magnesium aluminate silicate and magnesium aluminate metasilicate, organic powders such as protein powder, fish scale foil, metal soap, polyvinyl chloride, nylon 12, and microcrystalline fiber powder. Among these cosmetic powders, talc, kaolin, mica, mica titanium,
Titanium oxide, iron oxide, magnesium oxide, zinc monoxide, zinc dioxide, heavy or light calcium carbonate, dicalcium phosphate, aluminum hydroxide, barium sulfate, silica alumina, silica gel, antimony oxide, magnesium aluminate silicate, metasilicon Inorganic powders such as magnesium aluminate are preferred. Examples of the coloring agent include inorganic coloring agents such as yellow iron oxide, red iron oxide, black iron oxide, black iron oxide, chromium hydroxide, and chromium oxide, and organic coloring agents such as tar pigment and lake. In the present invention, cosmetic powders and/or colorants treated with a water- and oil-repellent agent made of a fluorine-containing polymer are added to cosmetics composed mainly of cosmetic powders and colorants. be blended. As the fluorine-containing polymer used here, any polymer can be used as long as it is soluble in an organic solvent or can form an emulsion in an aqueous medium, but in particular a polymer containing a perfluoroalkyl group can be used. Combination is preferred. Examples of such polymers include the following. That is, a homopolymer of acrylate or methacrylate containing a perfluoroalkyl group, an acrylate or methacrylate containing a perfluoroalkyl group, an acrylic ester, maleic anhydride, chloroprene,
Copolymer with polymerizable compounds such as butadiene and methyl vinyl ketone, the following formula: Polymers or copolymers of polyfluoroalkyl group-containing polymerizable compounds as represented by, or the above-mentioned polymers, vinyl chloride, vinyl acetate, vinyl fluoride, ethylene, vinylidene halides, acrylonitrile, Styrene, α-methylstyrene, p-methylstyrene, acrylamide, methacrylamide, diacetone acrylamide, methylolated diacetone acrylamide, N
Examples include polymers obtained by copolymerizing one or more polymerizable compounds that do not contain polyfluoroalkyl groups, such as -methylol acrylamide, vinyl alkyl ether, halogenated alkyl vinyl ether, isoprene, and glycidyl acrylate. Water and oil repellents made of such polymers are usually used in the form of organic solvent solutions. That is, for example, a solvent solution-type water and oil repellent can be obtained directly by solution polymerizing the compounds described above. In addition, polymers obtained by other methods such as bulk polymerization and emulsion polymerization,
It can also be obtained by dissolving it in an organic solvent such as acetone or methyl ethyl ketone. It is also possible to obtain an aerosol type by adding a propellant such as dichlorodifluoromethane or monofluorotrichloroethane to such a solvent solution and filling it into a suitable container. Furthermore, an aqueous emulsion obtained by emulsion polymerization can also be used as a water and oil repellent agent. The cosmetic according to the present invention is one in which the above-described cosmetic powder and/or coloring agent is treated with such a water- and oil-repellent agent, and the treated cosmetic powder and/or coloring agent is blended therein. It is. Cosmetic powders and/or colorants used in the water- and oil-repellent treatment include the powders and colorants mentioned above, but when mixed into cosmetics after water- and oil-repellent treatment, In order to achieve sufficient effects on transparency, adhesion, color unevenness, etc., use of talc, kaolin, mica, titanium mica, titanium oxide, iron oxide, magnesium oxide, zinc monoxide, zinc dioxide, heavy or light carbonic acid, etc. Inorganic powders such as calcium, dicalcium phosphate, aluminum hydroxide, barium sulfate, silica alumina, silica gel, antimony oxide, magnesium aluminate silicate, magnesium aluminate metasilicate, yellow iron oxide, red iron oxide, black iron oxide, gunjiyo Inorganic colorants such as , chromium hydroxide, and chromium oxide are preferred, especially inorganic powders such as talc, kaolin, mica, titanium mica, titanium oxide, iron oxide, magnesium oxide, zinc monoxide, zinc dioxide, and barium sulfate. Body is preferred. Furthermore, for water and oil repellent treatment, two or more kinds of cosmetic powders and/or colorants may be treated, and two or more of these treated products may be blended into the cosmetic. The amount of water- and oil-repellent-treated powder and/or colorant may be blended as all of the powder or colorant that constitutes the cosmetic, or as a part of the powder or colorant. However, in order to achieve a sufficient effect to improve the adhesion and transparency of the resulting cosmetic,
The amount of powder treated with a water- and oil-repellent agent and/or coloring agent is preferably 30 to 100% in the cosmetic powder and coloring agent that are the main components of the cosmetic. It is particularly preferable to mix the amount of 50% to 100%. For example, when using a solvent solution type water and oil repellent, a method for treating powder or coloring with a water and oil repellent is to stir a solution in which the water and oil repellent is dispersed in water and/or an organic solvent. While adding powder,
After washing with filter, water, ethanol, etc., dry by heating or air drying. In this case, a treatment such as curing may also be performed after drying. When an aerosol type water and oil repellent is used, the powder is treated by spraying the water and oil repellent onto the powder. Powder treated with water and oil repellent as mentioned above and/or
Alternatively, the colorant can be used as all or part of the powder or colorant that constitutes the cosmetic, and surfactants such as zinc stearate, magnesium myristate, and magnesium stearate, pigments, fragrances, etc. can be added to this according to the purpose. The cosmetic of the present invention can be obtained by arbitrarily selecting the ingredients and blending them using a conventional method. As detailed above, cosmetics containing cosmetic powders treated with water- and oil-repellents and/or coloring agents are significantly improved in that they do not become transparent due to water, perspiration, etc., and do not cause makeup to come off. These cosmetics are extremely useful as, for example, powder, compact powder, cake foundation, powder foundation, cheek color powder, eye color powder, body powder, and the like. Hereinafter, the present invention will be explained in more detail with reference to Examples. Example 1 Water and oil repellent [Asahi Guard AG710 (manufactured by Asahi Glass Co., Ltd.): an acrylate polymer containing a perfluoroalkyl group, the number of carbon atoms in the side chain is 5 to 15
While thoroughly stirring an emulsion consisting of 2 parts by weight of water-dispersed emulsion] and 100 parts by weight of water, 10 parts by weight of talc was added to the emulsion, and after stirring for several hours, the steps of filtration, washing with water, and washing with ethanol were carried out. Afterwards, it was air-dried to obtain a water- and oil-repellent treated powder. Kaolin was also treated in the same manner. Here, we conducted tests on the water repellency and crumbling of the talc itself, which had been treated with a water and oil repellent. The results are shown in Table 1. Using the water- and oil-repellent-treated talc and kaolin, the following ingredients were added and a powder was obtained in a conventional manner. The results of the sensory test for this powder are shown in Table 2. Formula: Water and oil repellent treated talc 52% by weight Kaolin 20 Mica 8 Titanium oxide 2 Magnesium carbonate 4 Zinc stearate 4 Liquid paraffin 10 Color pigment Appropriate amount fragrance Example 2 Water and oil repellent An emulsion consisting of 2 parts by weight (Asahi Guard AG710) and 20 parts by weight of water was thoroughly stirred in a household mixer, 10 parts by weight of mica was added thereto, and stirring was continued for an additional 20 minutes. After passing through the steps of washing with water, washing with ethanol, and drying with air, a treated object was obtained. Talc was also treated in the same manner. Here, we tested the water-repellency and crumbling of the water- and oil-repellent mica itself. The results are shown in Table 1. Using the water- and oil-repellent-treated mica and talc, the following components were added and a powder foundation was obtained by a conventional method. The results of tests on water repellency and makeup fading when such powder foundations were used as cosmetics are shown in Table 2. Formula Water and oil repellent treated talc 40% by weight Mica 35 Titanium mica 5 Titanium oxide 4 Magnesium myristate 4 Liquid paraffin 5 Lanolin alcohol 4 Methylpolysiloxane 3 Color Pigment Appropriate amount Fragrance Example 3 Titanium mica was treated with a water and oil repellent in the same manner as in Example 1 to obtain treated powder. The results of the water repellency test for this product are shown in Table 1. Such water- and oil-repellent-treated mica titanium, and water- and oil-repellent-treated talc obtained in Examples 1 and 2,
An eye color was obtained using mica and adding the ingredients shown below in a conventional manner. The results of tests on water repellency and makeup fading when such eye colors were used as cosmetics are shown in Table 2. Prescription Water and oil repellent treated talc 60% by weight mica titanium 20 mica 14 liquid paraffin 1 lanolin alcohol 5 color pigment appropriate amount Example 4 Scotchigard (Sumitomo 3M) as a water and oil repellent
Talc was treated in the same manner as in Example 1 using a perfluoroalkyl group-containing acrylate polymer (manufactured by Co., Ltd.). The results of tests on water repellency and crumbling of this material are shown in Table 1. Using this water- and oil-repellent-treated talc and the water- and oil-repellent-treated kaolin obtained in the examples, the following components were added, and a compact powder was obtained by a conventional method. The results of tests on water repellency and makeup fading when such compact powders were used as cosmetics are shown in Table 2. Formula Water and oil repellent treated talc 70% by weight Kaolin 22 Mica 2 Titanium oxide 1 Liquid paraffin 5 Color Pigment Appropriate amount Fragrance Appropriate amount Example 5 Water repellent titanium oxide in the same manner as Example 1 Treated with oil repellent. The results of tests on water repellency and crumbling of this material are shown in Table 1. This water and oil repellent treated titanium oxide, and the water and oil repellent treated talc obtained in Example 1 and Example 2,
Using mica, a cake foundation was obtained by adding the ingredients shown below and using a conventional method. The results of tests on water repellency and makeup fading when such cake foundations were used as cosmetics are shown in Table 2. Formula Water and oil repellent treated talc 45% by weight Mica 16 Titanium oxide 13 Kaolin 6 Lanolin 1 Lipophilic emulsifier 4 Vaseline 3% by weight Liquid paraffin 10 Propylene glycol 2 Color Appropriate amount fragrance 〃 Example 6 Using the water- and oil-repellent-treated talc and kaolin obtained in Example 1, the following ingredients were added, and a body powder was obtained by a conventional method. The results of tests on water repellency and makeup fading when such body powders were used as cosmetics are shown in Table 2. Formula Water and oil repellent treated talc 80% by weight 〃 Kaolin 10 〃 Magnesium stearate 7 〃 Magnesium carbonate 3 〃 Color Pigment Appropriate amount fragrance 〃 Comparative example 1 Using talcum mica and titanium oxide without water and oil repellent treatment A cake foundation was obtained using the same recipe as in Example 3. The test results for water repellency and crumbling of this material are shown in Table 2. Table 1 shows test results for water repellency and crumbling of talcum mica without water and oil repellent treatment, and of titanium oxide itself. Comparative Example 2 While thoroughly stirring a treatment solution consisting of 2 parts by weight of bis-(trimethylsilyl)acetamide and 100 parts by weight of n-heptane, 10 parts by weight of talc was added,
After refluxing at 120 to 130°C for 2 hours, the powder was subjected to filtration, water washing, and ethanol washing steps, and then air-dried to obtain a powder in which the hydroxyl groups on the powder surface were silanized. The test results for water repellency and crumbling of this material are shown in Table 1. Using this talc,
In addition, except for using treated kaolin, the rest is Example 1.
Powder was obtained using the same prescription. The test results for water repellency and makeup deterioration of this powder are shown in Table 2. Comparative Example 3 Mica was subjected to silanization treatment in the same manner as in Comparative Example 2. The results of tests on water repellency and crumbling of this material are shown in Table 1. This mica and Comparative Example 2
A powder foundation was obtained in the same manner as in Example 2 using the silanized talc obtained in Example 2. The water repellency and makeup-fading test results of this powder foundation are shown in Table 2. Comparative Example 4 A compact powder was obtained according to the same formulation as in Example 1 using commercially available magnesium stearate-treated talc and kaolin. The water repellency of this product,
The test results for makeup fading are shown in Table 2. The water repellency and crumbling test results for talc treated with magnesium stearate and kaolin itself are shown in Table 1. Comparative Example 5 Titanium mica was subjected to silanization treatment in the same manner as in Comparative Example 2. The test results for water repellency and crumbling of this material are shown in Table 1. This mica titanium,
Using the silanized talc and mica obtained in Comparative Examples 2 and 3, eye colors were obtained according to the same formulation as in Example 3. The water repellency of this eye color,
The results of the makeup fading test are shown in Table 2.

[Evaluation method for water repellency and collapse]

A sample was prepared by dispersing the powder in isopropyl alcohol and coating it on a polyester film to a thickness of about 5 mg/cm ² and air-drying it. Spray enough water with a sprayer to check its water repellency.
I observed the state of the makeup coming off. The symbols in the table have the following meanings. ◎: Extremely good, △: Slightly bad, 〇: Good, ×: Bad.

[Evaluation method for water repellency and makeup fading]

Makeup was applied to a female subject (base cream was applied, foundation was applied on top of that in some cases, and a surface-treated cosmetic powder of the present invention and a comparative product were applied to each half of the face). We compared and observed the state of makeup deterioration after sweating profusely during sports (table tennis for 2 hours) and sports (table tennis for 2 hours). The symbols in the table have the following meanings. ◎: Very good, △: Slightly bad 〇: Good, ×: Bad,

Claims (1)

[Scope of Claims] 1. A cosmetic composition mainly composed of cosmetic powder and coloring agent, which comprises cosmetic powder and/or coloring agent treated with a water- and oil-repellent agent made of a fluorine-containing polymer. Cosmetics characterized by the following: 2. The cosmetic according to claim 1, wherein the water and oil repellent is a water and oil repellent made of a polymer containing a perfluoroalkyl group. 3. The cosmetic according to claim 1 or 2, wherein the cosmetic powder treated with a water and oil repellent made of a fluorine-containing polymer is an inorganic powder. 4. The cosmetic according to any one of claims 1 to 3, wherein the colorant treated with a water and oil repellent made of a fluorine-containing polymer is an inorganic colorant. 5 30 to 100% by weight of cosmetic powder and/or coloring agent treated with a water and oil repellent made of a fluorine-containing polymer in the cosmetic powder and coloring agent that are the main components of the cosmetic. The cosmetic composition according to any one of claims 1 to 4, wherein the cosmetic composition is blended in the amount contained in the cosmetic composition.