JPH0522682B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention provides a new marble-like appearance obtained by mixing granulated and spheroidized powders of different colors and compressing and molding the mixture. This invention relates to powder makeup cosmetics having the following properties. More specifically, the present invention relates to a powder make-up cosmetic that has a completely new appearance, in which various shades of color and different tones are depicted as a marble pattern on the surface of a single stamped product. [Prior art] Conventionally, the method for molding powdered makeup cosmetics in multiple colors was to provide a partition in a filling tray, fill each powder individually, then remove the partition and press the mold. However, the process was complicated, and the finished product had sharp boundaries between the colors and was less appealing in appearance. Also, JP-A-59-
In 48410, several colors are kneaded with oil, binder, water, alcohol, and volatile solvent, formed into aggregates, coexisted in the same container to avoid damaging the aggregates, and compressed at the same time. Although a cosmetic is disclosed, it is not in a dry state at the time of filling, but in a wet state with oil, water, alcohol, volatile solvents, etc., and therefore each particle is sticky and does not mix well. However, if they coexist without being damaged, the desired result cannot be achieved. In addition, each particle is not spherical but amorphous, and is a moist aggregate, so even if compression molding is successful, each color and each particle will not be evenly distributed, resulting in a poor appearance. On the contrary, it becomes inferior. Furthermore, in terms of the strength of the molded product, it is extremely difficult to remove the air that has been mixed in when filling the aggregates, and since the molded product contains compressed air, it is brittle and easily broken. In terms of use, if aggregates are formed with water, etc., the moisture inside the aggregates cannot be sufficiently removed (although it is shown that the drying process is performed after the molding), it will not be possible to remove the particles uniformly. I can't hope for that. As a solution to this problem, applying strong heat to the molded product and forcing it to dry will result in cracks appearing on the surface and severely damaging the appearance. [Problems to be Solved by the Invention] The present invention solves the problems of the prior art.The purpose of the present invention is to create a marble-like appearance that is unique in appearance, and to apply make-up using only one product. To provide a powder make-up cosmetic that can impart and express a make-up effect using complex hues and multiple colors. [Means for solving the problem] That is, the present invention provides a mixture of pigment and oil and/or
Or, a plurality of different colors obtained by granulating a powder composition consisting of a pigment whose surface has been treated with an oil agent and made hydrophobic using a fluidized bed granulator into spherical shapes using a water-soluble polymeric substance as a binder. This is a marble-like powder makeup cosmetic made by mixing spherical granules and then pressing into a mold. [Specific description of structure] As the granulation method in the present invention, fluidized bed granulation is optimal. This causes the powder to flow into the air stream,
This method involves spraying a suitable binder solution as a binder and granulating it.The feature of this method is that the series of operations from granulation to drying are performed continuously in a closed system in a fluidized bed granulator with a small footprint. Here are some things you can do. During granulation using a fluidized bed granulator, a binder is used as described above for the purpose of granulating the granules and appropriately imparting strength to the spheroidized product. Taking this into consideration, a water-soluble polymer substance is used. Examples of these water-soluble polymeric substances include cellulose derivatives such as carboxymethylcellulose, methylcellulose, and hydroxyethylcellulose, and synthetic polymers such as polyvinyl alcohol and polyvinylpyrrolidone. The amount of water-soluble polymer substance used in the pigment is 0.05 to 5.0% by weight.
is preferred. In actual granulation, a water-soluble polymer substance is prepared in advance into a dilute aqueous solution (concentration of about 0.1 to 3% by weight), and the solution is sprayed through a fluidized bed granulator to perform granulation. The particle size of the spherical powder is determined by the flow rate, temperature, and binder in the fluidized bed granulator tank.
The particle size is controlled by the concentration, spraying time, etc., but from the spirit of the present invention, the particle size is preferably 0.5 to 5 mm, and most preferably 2 to 4 mm. If the particle size is 0.5 mm or less, even if multiple colors are mixed, the hue will be almost uniform in appearance and it will be difficult to recognize it as marble-like. If the particle size is 5 mm or more, there will be problems such as color unevenness on the coated surface during use. The powder composition of the present invention is preferably hydrophobic because it uses a water-soluble binder, and can form a neat spherical shape. This is because when the surface of the powder is hydrophilic, it is too compatible with the binder (water-soluble polymeric substance) and repeats agglomeration, forming a lump. This is because it cannot be coated. For the above reasons, preferred powder compositions include those in which the below-mentioned pigment is mixed with an oil agent and impregnated with the oil agent to improve hydrophobicity, and/or the below-mentioned pigment is surface-treated with an oil agent to improve hydrophobicity. Only such a method can achieve the purpose of the present invention. Pigments used include pigments commonly used in cosmetics, including inorganic pigments such as talc, kaolin, mica, calcium carbonate, titanium oxide, zinc white, ultramarine, and iron oxide, Red No. 202, and Red 204.
Refers to organic pigments such as No. 2, Red No. 226, Yellow No. 401, and Blue No. 404. The oil agent used is preferably a so-called oily substance commonly used in cosmetics and has water repellency, such as hydrocarbons such as liquid paraffin, squalane, petrolatum, microcrystalline wax, and ceresin. , higher fatty acids such as stearic acid, oleic acid, palmitic acid, and myristic acid, higher alcohols such as cetyl alcohol, oleyl alcohol, and stearyl alcohol, esters such as isopropyl palmitate, isopropyl myristate, and 2-octyldodecyl myristate, and monostearin. acid glyceride,
Examples include glycerides such as 2-ethylhexane triglyceride and coconut oil fatty acid triglyceride, and silicone oils such as dimethylpolysiloxane and diphenylmethylpolysiloxane. The amount of these oils used is generally 1 to 30% by weight, preferably 3 to 20% by weight, based on the pigment. [Function and Effect] As described above, a powder composition consisting of a mixture of a pigment and an oil agent and/or a pigment whose surface has been treated with an oil agent is formed into spherical particles using a fluidized bed granulator using a water-soluble polymeric substance as a binder. After mixing the spherical granules of different colors obtained by granulation, the mixture is compressed and molded to produce a new marble-like powder makeup cosmetic. These cosmetics have a number of advantages because their base particles are spherical. In other words, there is no powder scattering or lumpiness that occurs during normal powder work from powder production to filling, and the fluidity of each colored spherical material is extremely good, and the water-soluble polymer material has a smooth surface. Due to its moderate strength, even mixing and filling can be done by gently shaking the container, bag, etc., and even the surface and interior can be maintained without entraining excess air during compression molding. A uniformly stamped product can be obtained. In particular, in terms of appearance, multiple colors are uniformly scattered on the mold surface, resulting in a clean mold surface that is aesthetically pleasing. Furthermore, in use, 1
Depending on the product, you can easily create complex tones and make-up effects using multiple colors. Conventionally, these cosmetic effects required quite advanced cosmetic techniques, and in this sense, the present invention plays a significant role. [Example] Next, an example of the present invention will be shown. In the Examples, parts refer to parts by weight, and % refers to % by weight. Example 1

[Table] (A), (B), (C) obtained by mixing, stirring, and pulverizing each raw material
Using a 0.8% aqueous solution of methylcellulose as a binder, the powder composition for eyelid dough was granulated using a fluidized bed granulator, Eromatik AG (manufactured by Fuji Sangyo Co., Ltd.) under the following conditions, and the particles were each taken out as spheres of 2 to 3 mm. Equal amounts of these three colors were weighed out, placed in a small container, mixed by shaking, and filled into a punching mold equipped with a metal plate, followed by compression molding to obtain a blue marble-like eye shadow. Granulation conditions: Air volume scale 8-10 Indoor temperature 40±5℃ Spraying pressure 0.5Kg/cm ² Spraying time 2 hours Drying temperature 70±5℃ Drying time 3 hours Comparative example 1 (A) used in Example 1, ( 50 parts of a 0.8% methyl cellulose aqueous solution is added to 100 parts each of the eyelash dough powder compositions B) and (C), kneaded, and then formed into aggregates using a compression extrusion granulator. Equal amounts of the resulting aggregates (A), (B), and (C) were filled into a mold set with a weighing plate, compressed, and dried at 50°C for 30 minutes to form a blue mold. I got an eye shadow. When the eye shadow obtained here is compared with that of the example, the appearance is non-uniform and uneven due to poor mixing of each particle. The surface is normal for use, such as peeling and staining, but after a little use, the inside is still damp, peeling and peeling, and the color tone is different from the original back side. When cutting deeper with a sharp knife, there were unfilled voids, indicating that the mold was not in a uniform state. As described above, when granulation was performed using a compression extrusion granulator instead of a fluidized bed granulator, the powdered makeup cosmetics targeted by the present invention could not be obtained. Example 2

[Table] Well-mixed powder composition according to each raw material ratio
90 parts of each of (A) and (B) were gradually added to a solution of 10 parts of dimethylpolysiloxane dissolved in 100 parts of n-hexane, and stirred for 30 minutes. The solvent is then collected and
Baking treatment was carried out at 140° C. for 6 hours to obtain 100 parts each of surface-treated and hydrophobized powder compositions (A) and (B). These powder compositions for blushing were granulated in the same manner as in Example 1 using a 0.4% aqueous hydroxyethyl cellulose solution as a binder.
Make into mm spheres. Equal amounts of these two colors (A) and (B) were transferred to a bag, mixed by shaking, filled into a mold with a metal plate set, and compressed to obtain a brown marble-like blush. . Comparative Example 2 10 parts of dimethylpolysiloxane was directly added to the powder composition (A) used in Example 2 and mixed to form a powdered blusher. Similarly, 25 parts of dimethylpolysiloxane is added to (B) of the powder composition, mixed, and made into a lumpy blush using a compression extrusion granulator. Weigh equal amounts of the powdered (A) and aggregated (B) obtained in this way,
The mixture was filled into a punching mold set with a metal plate, and compressed and molded to obtain a brown blusher. Comparing the blush obtained here with that of Example 2, it was found that the aggregated part (B) was sticky, and because (A) was mixed and molded with adhering to its surface, (B) appeared on the surface of the mold. It hardly appears, making it monotonous. In terms of use, (B) does not come off well, sticks, and spreads easily, which is very different from (A), so it has noticeable drawbacks such as uneven makeup. As described above, when a compression extrusion granulator is used instead of a fluidized bed granulator, and when granulation is performed using an oil agent without using a water-soluble polymer substance, the powdered makeup cosmetic that is the object of the present invention can be obtained. I couldn't help it.

Claims (1)

[Claims] 1. A powder composition consisting of a mixture of a pigment and an oil agent and/or a pigment that has been surface-treated and made hydrophobic with an oil agent is processed using a fluidized bed granulator using a water-soluble polymeric substance as a binder. A marble-like powder make-up cosmetic made by mixing spherical granules of different colors obtained by granulating them into spherical shapes, and then compressing and molding the mixture. 2. The marble-like powder make-up cosmetic according to claim 1, wherein the spherical granules have a diameter of 0.5 to 5 mm.