JPH0699283B2 - Method for producing multicolor powder solid cosmetic - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a marble-like multicolored powder-type solid cosmetic having a variety of color tones of various colors and shades of various colors and different gloss in a single container. The manufacturing method of the food.

Here, the powder-type solid cosmetics are solid cosmetics that are used by applying the powder to a container, a medium plate, or the like using a binder, and applying the powder to the skin such as eye shadow, blusher, and solid white powder. Refers to.

[Conventional technology]

In the conventional powder-type solid cosmetics, as a manufacturing method for obtaining a product having a plurality of color tones in a single container, a partition is provided in the container, and the interior of each chamber formed by this partition is colored individually. After filling different powders, it was common to remove the partition and press. However, this manufacturing method involves complicated steps, and the finished pattern is limited to a determined and unnatural color tone because the boundaries between the colors are clear depending on the partition shape. In addition, when a complicated pattern or a large number of colors is desired, the partition shape is inevitably complicated, and the difficulty of filling individual powders is increased. Mass production was difficult.

As a recent method for producing a solid cosmetic of a multicolored powder system, for example, in JP-A-60-38311 and JP-A-61-36206, powdery compositions having a granular or spherical shape having different tones are provided in the same container. A method of co-existing simultaneously with compression molding, and JP-A-60-67
No. 405, JP-A-60-67408, JP-A-60-172917, and JP-A-60-172918 disclose that two or more kinds of mud substances of a solvent and powder cosmetics, which are different in color, are contained in the same container. A method has been proposed in which the inside is filled and compression molding is performed using a molding head or the like made of a porous material, and at the same time, the solvent is absorbed from the back surface of the molding head. It is necessary to pay attention to the process so that it will not be damaged, and the color tone of the obtained product is clearly divided and has a monotonous pattern.On the other hand, the latter method is a porous absorber etc. simultaneously with compression molding. Since the solvent has to be sucked in and the absorber is not suitable for continuous use, the endless sheet method etc. is adopted. Furthermore, as the number of colors increases, the equipment becomes larger and the mud The filling of objects tends to be complicated.

[Problems to be solved by the invention]

INDUSTRIAL APPLICABILITY The present invention solves the drawbacks of the conventional method for producing a solid cosmetic of multicolor powder, and can express various makeup effects in a single product. It is possible to eliminate the drawbacks such as oily feeling and makeup deterioration that are seen, and to obtain an excellent product that has a good balance of feeling in use, adhesiveness, strength, etc. Furthermore, the manufacturing method is not complicated,
It is an object of the present invention to provide a method for producing a multicolor powder solid cosmetic having excellent moldability, which enables good drying even in the drying step during production.

[Means for solving problems]

That is, the method for producing a multicolor powder-type solid cosmetic composition according to the present invention is one in which powder and a binder are dispersed in a volatile solvent and the slurry-like powder dispersion (hereinafter abbreviated as powder dispersion) has different colors. Two or more types are mixed in a marbled pattern by a gentle stirring method, filled into a predetermined container, molded, and dried to produce a variety of shades with multiple shades that are subtly mixed. A powdery solid cosmetic material is obtained.

[Specific Description of the Invention]

In the present invention, two or more kinds of powder dispersions having different colors are mixed non-uniformly by a gentle stirring method or the like, and the present inventors previously proposed JP-A-61-10000 and JP-A-61-1. No. 15812, JP-A-61-
It is effective to use a powder solidifying device disclosed in Japanese Patent Application No. 17507 and Japanese Patent Application No. 60-142317 to fill a predetermined container, press-mold it, and dry it. That is, after injecting and filling the powder dispersion into a cylindrical container such as a pencil container or a porous mold held on the screen means, pressurizing air is applied from the upper surface of the powder dispersion or a screen is applied. It is preferable to use a method comprising pressing to remove the solvent, molding, and drying.

The powder used in the present invention is a powder conventionally used in makeup cosmetics, for example, an extender pigment, a white pigment, a coloring pigment, a pearl pigment, a metallic soap, a starch, a nylon powder, and the like, which are conventionally known. It is possible to use a powder whose surface is treated with silicone (for example, methylhydrogenpolysiloxane), treated with metallic soap or amino acid (for example, acylglutamate) to have water repellency. These powders are appropriately mixed and used according to the type and use of makeup cosmetics.

The solvent used in the present invention may be a volatile solvent commonly used in cosmetics, and preferably does not sufficiently dissolve the powder and binder, that is, disperses the powder and binder. It is desirable that it can be held in the state and can be easily evaporated and removed after the powder is solidified. As a volatile solvent,
Examples thereof include ketones, alcohols, esters, and hydrocarbons, which can be used alone or in combination. More specifically, it is preferable to use the volatile fluorinated hydrocarbon solvent disclosed in JP-A-60-243006. In particular, the volatile fluorinated hydrocarbon solvent has a low boiling point, so it has good drying properties, can be sufficiently volatilized and removed even at room temperature, and has low toxicity, so it has little effect on workers and is nonflammable. Therefore, it has an advantage that it is highly safe from the viewpoint of fire protection.

As the binder used in the present invention, any binder can be used as long as it can be dispersed in a volatile solvent and can solidify the powder by its cohesive force after removing the solvent, and has been conventionally used for powder-based makeup cosmetics. Binder and
The organic bentonites disclosed in 60-243006 are used. In particular, when organic bentonite is used as a binder for powders, it swells without being dissolved in a solvent, forms a network structure to adsorb the powder, and keeps the powder in a constant shape after removing the solvent. Has the effect of imparting the strength, hardness, breakage resistance, etc. required for the product while maintaining a good feel and adhesion as a solid cosmetic. The binder is added to the powder dispersion in an amount usually used. More specifically, when organic bentonite is used, it is added in the range of 0.01 to 40% by weight based on the powder.

In addition to the above-mentioned powder, solvent and binder, the present invention, as a binding aid, solvent-insoluble microcrystalline cellulose increases the auxiliary action of the organic bentonite, that is, strength, and serves to maintain the shape. A polar substance such as propylene, ethanol, or an acid is added in a small amount to promote the improvement of the binder effect, and thus can be added as necessary. Further, in order to prevent the product from changing with time, known additives such as preservatives, antioxidants, and ultraviolet absorbers, which are usually used in the field of solid cosmetics, can be added in appropriate amounts, if necessary.

The present invention comprises the above powder dispersion from the above-mentioned raw material composition, and the volatile solvent to the powder composition in the powder dispersion can be mixed in a range of about 0.3 to 6 times (weight ratio), In the range of about 0.5 to 3 times, a delicate mixed state of colors can be expressed, and a marbled multicolored pattern with various shades can be obtained. When the amount of the volatile solvent is less than 0.5 times, not only the boundaries between the respective colors are conspicuous, but also the effect of the binder for connecting the colors becomes insufficient, resulting in problems such as strength reduction and cracking. If it is more than 3 times, the powder dispersions of the respective colors are easily dispersed into each other and tend to be monochromatic, which makes it difficult to develop the desired multicolored color tone and also causes the loss of the solvent. growing.

In addition, a variety of patterns and patterns can be obtained in a marble-like color mixture state due to changes in the powder dispersion liquid, the filling method and the molding conditions over time, and changes in the applied pressure. Get paid.

〔Example〕

Examples of the present invention will be described below, but the present invention is not limited thereto. "Parts" in the examples indicate parts by weight.

Example 1: blusher Three powder dispersions obtained by sufficiently dispersing and mixing the respective compositions of (A), (B) and (C) were put in the same container and subjected to gentle stirring to mix non-uniformly. In addition, a pressure molding machine for pouring and filling a bowl-shaped molding die made of a porous material and removing the solvent under the molding die by applying air pressure from the upper surface of the powder dispersion (JP-A-60-142317). (See Japanese Patent Laid-Open Publication No. 1989) and then dried at 40 ° C. to remove the solvent to obtain a bowl-shaped marble-solidified blusher product as shown in FIG. In the figure, 1 is a dish-shaped container, 2 is a marble solidified powder, and 21 and 22 are powder compositions of respective colors.

Fronsolve AE is a volatile fluorinated hydrocarbon manufactured by Asahi Glass Co., Ltd.

Example 2: Eye shadow Three powder dispersions obtained by sufficiently dispersing and mixing the compositions of (D), (E), and (F), respectively, were placed in the same container and subjected to gentle agitation to mix them inhomogeneously. Was injected and filled into a cylindrical resin shaft having an inner diameter of 7.5 mmφ held upright by a pressure molding machine (see Japanese Patent Laid-Open No. 60-10000) and pressurized with pressurized air from the upper surface of the powder dispersion liquid. After extruding the solvent from the lower part of the resin shaft and molding, dry at 40 ° C to remove the solvent,
A pencil-like marbled powder eye shadow product as shown in FIG. 2 was obtained. FIG. 2 is a side view showing a state in which the tip is scraped for use, 2 is a marble solidified powder, and 3 is a cylindrical resin shaft.

In addition, Freon Showa FS-3 in the above table is a volatile fluorinated hydrocarbon manufactured by Showa Denko KK

〔The invention's effect〕

As described above, the product obtained by the present invention has a variety of patterns with a variety of colors,
It is a new and unique marble-like multicolored powder solid cosmetic that is expressed in shades and lusters, and when used, one product is used each time to visualize various makeup effects that are different each time. It has become possible.

Further, according to the manufacturing method of the present invention, even if the number of colors increases,
By injecting and filling a mixture of the respective powder dispersions in a non-uniform manner, and simultaneously press-molding, it is possible to easily perform molding in a single container, and also by using the volatile solvent in the drying step. Also, it is possible to perform extremely good drying without the problem of the surface film phenomenon that occurs when a binder that is soluble in a conventional solvent is used and the problem that the water-repellent powder and the binder do not mix well. Further, a binder that swells in a volatile solvent adsorbs powders, and after volatilizing the solvent, it can exhibit an effective binder function and hold powders in a certain shape, which is necessary as a powder cosmetic. Strength,
It is possible to obtain a product which has hardness, breakage resistance and a well-balanced feeling in use, adhesiveness, makeup retention and the like.

[Brief description of drawings]

FIG. 1 is a diagram of the product of Example 1, and FIG. 2 is Example 2
It is a partially cutaway side view of the product of FIG. In the figure, 1 ... Dish type container 2 ... Marble powder 3 ... Cylindrical resin shaft

Claims (3)

[Claims] 1. A slurry-like powder dispersion in which a powder and a binder are dispersed in a volatile solvent, two or more kinds having different colors are mixed non-uniformly, filled into a predetermined container, molded and dried. A method for producing a marble-like multicolored powder-type solid cosmetic, comprising: 2. The method for producing a solid cosmetic composition according to claim 1, wherein the volatile solvent is a volatile fluorinated hydrocarbon solvent. 3. The method for producing a solid cosmetic composition according to claim 1, wherein the binder is organic bentonite.