JPH02178212A - Production of multi-color powder solid cosmetic - Google Patents

Abstract

PURPOSE:To obtain the title cosmetic clearly shown in each boundary line and having beautiful appearance by extruding and molding plural paste materials having different colors into a stick shaped unit using a nozzle for molding having a specific structure, drying and solidifying the stick-shaped unit and cutting the solidified unit in a prescribed shape. CONSTITUTION:10-70wt.% volatile solvent is added to a powder cosmetic base consisting of 30-95wt.% powder and 5-70wt.% oily raw material to give a paste material every each color. The paste material every each color is charged from each charge port of nozzle 1 for molding having plural charge ports 3, 8 and 9 and single discharge port 5 and plural paste materials are gathered together and extruded and molded into one stick-shaped unit. Then a volatile solvent in the above-mentioned stick-shaped unit is volatilized to dry and solidify the stick-shaped unit and the resultant solid stick cosmetic is cut into a prescribed shape and molded into multi-colored (a', b' and c') powder solid cosmetic e.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing a multicolor powder solid cosmetic used, for example, as a lipstick, blusher, or other multicolor makeup cosmetic.

[Prior Art] Conventionally, as a method for manufacturing a powder solid cosmetic using a powder cosmetic base and a volatile solvent, for example, Japanese Patent Application Laid-Open No. 1983-1999 discloses
A method described in Japanese Patent No. 38432 is known. This method involves adding and kneading a mixture of 20 to 60% by weight water or alcohol to a powder base based on extender pigments or inorganic pigments, and compression molding the mixture into a rod shape. By drying the product at a temperature of 50°C or less to a water content of 10% or less by weight, bar-shaped skin and skin cosmetics are produced.

Further, as another conventional technique, there is one described in Japanese Patent Application Laid-open No. 163831/1983. This method involves adding 30 to 90 parts by weight of mica powder, 40 parts by weight or less of a colored pigment, and 5 to 30 parts by weight of one or more of oils, fats, surfactants, and water-soluble binders to a volatile liquid. The aim is to manufacture powdered makeup cosmetics by mixing the powder and extruding it into a rod shape, cutting it, shaping it, and drying it.

On the other hand, as a method for producing multicolored rod-shaped cosmetics,
There is one shown in Japanese Patent No. 225108.

In this method, basic raw materials of each single color are blended and melted in a pair of blending tanks, and are passed through conduits whose upper ends are connected to the blending tanks into a bar-shaped cosmetic molding mold that is rotatably installed below the conduits. The aim is to produce multicolored bar-shaped cosmetics by direct filling.

[Problem to be solved by the invention J] By the way, among the above-mentioned conventional techniques, the first Japanese Patent Application Laid-Open No. 51
In the method for manufacturing bar-shaped skin cosmetics shown in Japanese Patent Application Laid-Open No. 54-163832 and the method for manufacturing powder makeup cosmetics shown in the second Japanese Unexamined Patent Publication No. 54-163831, the color or base component is a single powder. Only solid cosmetics could be produced. Therefore, for example, powder solid cosmetics with two or more colors that have a fashionable feel, and powder solid cosmetics with multi-functions that allow you to select a particular part of the cosmetic when using them. etc. could not be manufactured. For this reason, for example, when manufacturing multi-colored powder solid cosmetics, a single color powder solid cosmetic must be manufactured for each color, and finally powder solid cosmetics of different colors must be combined. Therefore, there are problems in that the manufacturing process becomes complicated and manufacturing efficiency is poor.

In addition, the method for producing a multicolored cosmetic bar disclosed in the third Japanese Patent Application Laid-open No. 59-225108 involves filling a rotating mold for molding a cosmetic bar with a plurality of basic raw materials of different colors.
The drawback is that only bar-shaped cosmetics with a spiral pattern can be produced.

The present invention was developed in view of the above-mentioned drawbacks of the prior art, and it is possible to easily produce powder solid cosmetics that are integrally molded in an independent state (without mixing multiple ingredients such as colors). It is an object of the present invention to provide a method for producing a multicolored solid powder cosmetic material.

[Means for Solving the Problems J In order to solve the above-mentioned problems, the means adopted by the present invention is to apply a powder cosmetic base consisting of 30 to 95% by weight of powder and 5 to 70% by weight of oily raw materials. A first step of adding a volatile solvent to produce a plurality of pastes of different colors, and using a molding nozzle having a plurality of paste inlets and a single discharge port for each color. , a second step of assembling the plurality of paste-like materials with different colors and extruding them into one rod shape, and volatilizing the volatile solvent in the rod and drying and solidifying it to form a solid rod-shaped makeup. The method consists of a third step of molding the solid cosmetic material, and a fourth step of cutting the solid rod-shaped cosmetic material into a predetermined shape and molding it into a multicolor powder solid cosmetic material.

[Specific constitution of the invention] The powder cosmetic base used in the present invention includes 30 to 95% by weight of powders such as extender pigments, coloring pigments, metal soaps, burl materials, and organic pigments used in ordinary cosmetics, and liquid paraffin. It consists of 5 to 70% by weight of oily raw materials such as.

Furthermore, a fixing agent may be added to the powder cosmetic base. The fixing agent includes organic bentonite, which functions as a binder for the powder and improves the impact resistance and breakage resistance of the solidified powder cosmetic. . As organic bentonite,
Examples include stearyl dimethyl benzylammonium hectorite, dimethyl dihydrogenetate tallow ammonium hectorite (trade name "Bentone 38", manufactured by National Lead Company, USA), and the like.

Moreover, ethyl cellulose can be used in combination with or selectively with organic bentonite. When using organic bentonite and ethyl cellulose together, the blending ratio is 20:
A range of 1 to 1:1 is suitable.

The mixing ratio of the organic bentonite and/or ethyl cellulose mentioned above and the powder is 1. O: 99.0-20.
0:80. A range of O is suitable in terms of adhesion and impact resistance.

Further, the volatile solvent has a boiling point of 200'C or lower, but preferably one with a boiling point of about 30 to 100'C that can be volatilized at room temperature.Also, a volatile solvent containing water may be used.

Volatile solvents include trichlorotrifluoroethane (
Preferred are "Fronshowa 113J" manufactured by Showa Denko ■, ethanol, acetone, low boiling point hydrocarbons ("Isopar A" manufactured by Hangul Oil and Refining Company, USA), low boiling point cyclic silicones, and the like. The amount of volatile solvent used is 10 to 10% of the total amount of powder and fixing agent.
A range of 100% by weight is suitable.

Furthermore, in addition to the above-mentioned powder, fixing agent, and volatile solvent, preferably 1.0 to 20.0% by weight of crystalline cellulose to improve the "removal" of the powder, organic bentonite to the volatile solvent, As a swelling promoter for ethylcellulose, 0.5 to 5.0% by weight of propylene carbonate may be added and mixed in place of the powder.

Now, in the first step of the method of the present invention, 10 to 70% by weight of a volatile solvent is added to the above-mentioned powder cosmetic base to produce a paste-like product for each color. Next, in the second step, a molding nozzle is used to collect the paste-like materials of each color so that the colors do not mix with each other, and extrude and mold them into a single rod shape. Here, the molding nozzle includes two or more paste injection ports through which paste-like materials are injected under pressure for each color, and a single discharge port through which the injected paste-like materials of each color are discharged in a collected state. The molding nozzle is configured so as not to mix the paste-like materials of each color.

In the third step, the volatile solvent contained in the rod formed in the second step is evaporated and dried and solidified to form a solid rod-shaped cosmetic. Drying and solidification methods include a method using a vacuum drying chamber, a forced drying method such as a method using lamp irradiation or hot air blowing, and a natural drying method in which a volatile solvent is naturally volatilized.

Finally, the above-described solid rod-shaped cosmetic is cut into small pieces of multicolored powder solid cosmetic having a desired shape. This cutting method includes cutting the rod along the axis, perpendicular to the axis, diagonally to the axis, and cutting so that the cut surface is wavy. method etc.
Any suitable cutting method can be used.

Furthermore, it is also possible to produce a multicolor powder solid cosmetic by placing the above-mentioned cut and molded solid cosmetic into a predetermined case and subjecting it to molding.

〔Effect of the invention〕

According to the above-mentioned method of the present invention, paste-like materials of different colors are not mixed with each other (because they are assembled and extruded into a single rod shape, and the rod-like material is dried and solidified,
It is possible to produce a multicolored powder solid cosmetic with a beautiful appearance in which the boundaries between each color are clearly expressed. In addition, in addition to the color, we can also use multiple types of base ingredients, such as multi-colored powder solid cosmetics that allow you to use different types of base ingredients such as natural and non-natural parts, in a single extrusion molding process. It can be manufactured in a process. Furthermore, a desired pattern can be obtained by adjusting the cutting direction in the cutting process.

〔Example〕

The present invention will be explained in detail below.

[Example 1] ■ Pigment eyeshadow 23.0% by weight ■ Mica 25.7% by weight ■ Mica titanium (burr agent) 35.0 ■ Zinc stearate
3.7■Liquid paraffin 10.
0 ■ Crystalline cellulose 1.0 ■ Ethyl cellulose 0.6 ■ Dimethyl dihydrodienetade ■ Trichlorotrifluoroethane 70.0 First, as a first step, red, yellow and blue pastes a, b, c generate. That is, the volatile solvent (3) is added to the red pigment (2') made of red red pigment and the components (2) to (2), and the mixture is mixed and stirred to produce a red paste-like material (a). In the same way, a yellow paste material is produced from the yellow pigment ``■'' made of yellow iron oxide, the ingredients ``■'' and the volatile solvent ``■'',
A blue paste-like material C is produced from a blue pigment ``'''' consisting of Gunjo, the components ① to ②, and a volatile solvent ②.

Next, in the second step, the paste-like materials a, b, and c of each color are extruded and molded into one rod shape using a molding nozzle. First, the molding nozzle used in this step and the drying device used in the next drying step will be described with reference to FIGS. 1 to 3.

In the figure, 1 is a molding nozzle, 2 is the molding nozzle 1
A hollow cylindrical nozzle body constituting the nozzle body 2.
consists of a large diameter part 2A located on the upper side in the axial direction, a reduced diameter part 2B located in the middle, and a small diameter part 2C located on the lower side in the axial direction, and the opening above the large diameter part 2A is made of red paste, for example. This serves as an upper injection port 3 for injecting the substance a.

In addition, the inside of the intermediate reduced diameter part 2B becomes a collecting part 4 for collecting the red, yellow, and blue paste-like materials a, b, and c, and the opening with the small diameter 82C collects the paste-like materials a, b, and c of each color. It is a discharge port 5 that discharges in the form of a single rod.

6.7 is a pair of injection pipes made of hollow cylinders that are formed to protrude from the large diameter portion 2A of the nozzle body 2 in a radial direction,
The opening of the injection tube 6 on the left side of the figure is an injection port 8 for injecting the yellow paste-like material, and the opening of the injection tube 7 on the right side of the figure is another injection port 9 for injecting the blue paste-like material C. It has become.

Reference numeral 10 denotes a mixing prevention member provided in the large diameter portion 2A of the nozzle body 2, and the mixing prevention member 10 serves as a ceiling for regulating the flow of the red paste material a that is injected under pressure through the upper injection port 3. A plate 10A, a partition plate 10B that regulates the laminar flow of the yellow paste b and the blue paste C that are injected under pressure from the left injection port 8 and the right injection port 9, respectively, and the red paste material a from the discharge port. Four guide tubes 10C, 110C, I are provided with openings in the top plate 10A in order to guide them to the S side.
It consists of OC and IOC.

The mixing prevention member 10 allows the paste-like materials a, b, and c of each color to flow toward the gathering portion 4 without mixing with each other.

Reference numeral 11 denotes a rectifying plate made of a perforated plate provided in the large diameter portion 2A so as to be located below the left and right injection pipes 6, 7 and facing the top plate 10A. Right inlet 8
．． 9 into the large diameter portion 2A, and the partition plate 10
The yellow paste-like material and the blue paste-like material C, which collide with B and become turbulent, are rectified into a laminar flow state.

Thus, the molding nozzle 1 of the embodiment includes the nozzle body 2,
It is composed of a pair of left and right injection pipes 6 and 7, a mixing prevention member 10, and a current plate 11.

On the other hand, 12 is a drying device disposed below the molding nozzle 1, and the drying device 12 is a small diameter portion 2C of the nozzle body 2.
A hollow drying box 13 having a fitting hole 13A into which the rod d is fitted, an exhaust port 13B and an exhaust port 13C for discharging the dried and solidified rod d, and an exhaust fan provided at the exhaust port 13G of the drying box 13. It consists of 14. A bar cutting device (5) is provided on the bottom surface of the drying box 13 near the discharge port 13B.

In addition, 16 in the figure is a belt conveyor disposed below the drying box 13 and conveying the rods d' cut by the rod cutting device 15 to the next cutting and forming process. On the upper surface of the conveyor 16, semi-cylindrical rod support members 17.17 are erected at predetermined intervals.

Now, the second step of molding one rod d from the red, yellow, and blue pastes a, b, and c using the molding nozzle 1 described above will be described in detail. The red paste material a is injected under pressure into the upper injection port 3 of the molding nozzle 1. The red paste-like material a has four guide tubes 10C,
It flows out into the collecting section 4 through the IOC, . on the other hand,
Yellow paste material C injected under pressure from the left injection port 8 and blue paste material C injected under pressure from the right injection port 9
is guided toward the gathering portion 4 side by the partition plate 10B, and during this time the flow is rectified by the rectifying plate 11. The three colors of paste-like materials a, b, and c are brought into close contact with each other within the collection section 4 without mixing, and are extruded from the discharge port 5 while maintaining this state, forming a single stick. Body d is molded.

In the third step, as described above, the volatile solvent (1) contained in the formed rod d is evaporated and the rod d is dried and solidified. The drying device 12 described above is used for this. The small diameter part 2C of the nozzle 1 is inserted into the drying box 13, and the inside of the drying box 13 is maintained in a reduced pressure state by the exhaust fan 14.Therefore, the rod d is inserted from the discharge port 5 into the drying box 13.
When the volatile solvent (2) in the rod d is quickly volatilized, when the rod d is discharged from the discharge port 13B above the conveyor belt 16, it has been dried and solidified to the desired hardness. It is a solid rod-shaped cosmetic d'.

Then, when the rod d is discharged from the discharge port 13B to a predetermined length, the cutting device 15 is activated to cut the solid rod-shaped cosmetic d.
' are sequentially cut into cylindrical shapes.

In the fourth and final step, the above-mentioned cylindrical solid rod-shaped cosmetic d
' is cut in the radial direction and molded into a disc-shaped multicolored solid powder eyeshadow e. By storing this disc-shaped cosmetic piece e in a compact case as shown in Fig. 4,
Each solid part a, a', a', a', b' of red paste-like material a, yellow paste-like material and blue paste-like material C
, c can be produced.

In this embodiment, by cutting the cylindrical rod d' obliquely to the axis, solid parts a', a', . . . , b'C of each color are formed as shown in FIG. It is also possible to produce an eye shadow in which the cut surface of ' is oval shaped.

[Example 2] Blush ■ Pigment 12.3% by weight ■ Mica 37.0 ■ Talc
22.5■ Mica titanium (bur agent) 20
．． 0 ■ Zinc stearate 2.0 ■ Squalane 6.0 ■ Fragrance
0.2 ■ Ethyl alcohol 100.0 In the first step, a volatile solvent (■) is added to the skin color pigment (■') and each of the components (■ to ■) and mixed and stirred to produce a skin color paste f. Similarly, a red paste g is produced from the red pigment ■'', the components of ■ to ■, and the volatile solvent ■, and a white paste is produced from the white pigment ■''', the components of ■ to ■, and the volatile solvent ■. Generates a similar shape.

Hereinafter, in the same manner as in the first embodiment, in the second step, three colored pastes f, g+h are molded into one rod using the molding nozzle 1, and in the third step, a drying device is used 12 to dry and solidify the rod and cut it into cylindrical solid rod-shaped cosmetics of a predetermined length (In the fourth and final step, a skin-colored paste f, a red paste-like The solid cosmetic bar was cut along the axis so that the solid parts f', ', and h' of the white paste-like material were exposed, and the multicolored powder solid was cut as shown in Figure 6. Mold into a type blusher i.

Note that the discharge port 5 of the molding nozzle 1 and the guide tubes toc, ioc, etc. used in each example had a circular cross section, but they may also have an appropriate shape such as rectangular, triangular, heart-shaped, etc. It can be used.

Further, in the examples, a method for producing multicolor cosmetics with three colors is illustrated, but in a method for producing multicolor cosmetics with two or more colors, the molding nozzle may be configured to correspond to this method. .

[Brief Description of the Drawings] Figures 1 to 5 relate to a first embodiment of the method of the present invention, and Figure 1 shows a part of the molding nozzle and drying device used in the embodiment method in cross section. The overall configuration diagram, Figure 2 is an enlarged sectional view of the main part of the molding nozzle, and Figure 3 is III-I in Figure 2.
A cross-sectional view in the direction of arrow II, FIG. 4 is an external perspective view of a multicolor powder solid eye shadow manufactured by the method of the example, and FIG. 5 is a multicolor powder solid eye shadow according to a modification of the method of this example. FIG. 6 is a perspective view of the appearance of a multicolor solid blusher manufactured by the method of the second embodiment. 1... Molding nozzle, 3, 8.9... Inlet, 5.
...Discharge port, a, b, c...Paste-like material, d...
Rod, d'...Solid rod-shaped cosmetic.

Claims (1)

[Claims] A first step of adding a volatile solvent to a powder cosmetic base consisting of 30 to 95% by weight of powder and 5 to 70% by weight of oily raw materials to produce a plurality of paste-like substances with different colors, respectively;
Using a molding nozzle having a plurality of paste inlets and a single discharge port for each color, the plurality of pastes of different colors are assembled and extruded into a single rod shape. a second step, and a third step of volatilizing the volatile solvent in the rod and drying and solidifying it to form a solid rod-shaped cosmetic;
A method for producing a multicolor powder solid cosmetic comprising a fourth step of cutting the solid bar-shaped cosmetic into a predetermined shape and molding the solid cosmetic into a multicolor powder solid cosmetic.