JPS623124B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention is an oil-based powder point make-up agent that can be molded into a cake shape when used in powder form, has good adhesion to the skin without using water, and has an excellent texture. Concerning new manufacturing methods. Specifically, it is coated substantially uniformly and stably with an oily substance in the form of a powder or cake, and when applied to the skin, it is difficult to stick to the skin (adhesiveness) Blends well (affinity), and the cake-shaped oil-based powder point make-up powder can be easily removed from the puff or brush, and it also spreads well while giving a good feel, and adheres uniformly and stably for layering ( This invention relates to a new method for producing an oil-based powder point make-up powder that can be easily applied (layered) and removed into a puff. Conventionally, the method for manufacturing oil-based powder makeup materials in which powder base materials for cosmetics are treated with oil-based substances involves spraying an oil-based substance alone onto a mixture of powder base materials to coat the surface of the powder base material. Although it is easy to manufacture, it is extremely difficult to obtain a product with uniform coating. As a result, the product forms an uneven oily coating layer that has poor adhesion to the skin, sticks unevenly, easily comes off, and is completely impossible to recoat. As a method for improving this, it is known to spray coat the surface of the powder base material with a solution of an oily substance in an organic solvent or a dispersion of this solution mixed with a small amount of water. It is still difficult to apply, and the adhesion of the obtained powder makeup powder is not sufficient.Moreover, the powder makeup powder formed into a cake shape tends to thin and crack during long-term storage, making it difficult to apply multiple coats. is also impossible. As a further improved method, after adding and mixing a powder base material to an aqueous emulsion of an oily substance, the powder surface is activated by mechanical polishing, and then left at 20 to 40°C for 5 to 7 days to dry and pulverize. A method for doing this is disclosed in Japanese Patent Publication No. 35-12800. However, this method requires a long production time of 5 to 7 days or more, and the resulting white powder has poor adhesion to the skin, poor affinity, and spreadability, and is completely impossible to recoat. Furthermore, as a manufacturing method similar to the above method,
A method is known in which the powder base material is mixed and dispersed in an aqueous emulsion of an oily substance and then heated to a temperature of 80°C or higher and dried. Since it takes a long time for the oil-based substance to adhere, coalescence of the powder base material and the formation of coarse, hardened agglomerated particles take place during that time, making it virtually impossible to achieve a uniform surface coating. However, they have the disadvantage that they tend to produce oil-based powder makeup that gives a rough and uncomfortable feeling to the skin and does not spread easily. On the other hand, Patent No. 44304 discloses that inorganic pigments (talc and zinc white) are added and mixed with stirring into an emulsion made by mixing lanolin, gum albia, and water, and the upper liquid becomes transparent. A method for producing white flour is disclosed, which consists of stopping the stirring at this point, filtering, squeezing, dehydrating, adding glycerin and a preservative to the thus obtained lanolin-coated pigment and kneading it. However, even with this method, uniform surface coating with the inorganic pigment lanolin is not possible. Therefore, even if the above-mentioned lanolin-coated pigment is dried and used as an oil-based white powder,
It has many drawbacks, such as insufficient adhesion, blending, and spreadability to the skin, and the complete inability to apply multiple coats to the skin. As described above, conventional manufacturing methods have many problems such as the long manufacturing time required, and the resulting oil-based powder point makeup powder has an uneven and unstable surface coating made of oil-based substances that may cause irritation to the skin. Poor adhesion, elongation, and usability. In addition, when molded into a cake, it is not only difficult to remove, but also tends to thin (volume reduction) and crack (cracks) during storage, and it is impossible to apply oil-based powder makeup in multiple layers. Since then, there has been a long-awaited development of an oil-based powder point make-up agent that can easily and easily apply improved three-dimensional make-up. The present inventors have previously (Japanese Patent Application No. 52-40597, JP 53-127840) mixed an aqueous emulsion of an oil-based substance and an inorganic powder, and then dissolved it by adding a water-miscible organic liquid. When emulsifying, the inorganic powder becomes a coagulated substance uniformly coated with an oily substance, which settles when left to stand.Then, the coagulated substance is separated from the liquid and dried. Thus, it has been discovered that an improved oily white powder can be obtained. As a result of further research, the present inventors discovered that not only oil-based white powder but also oil-based powder point make-up powder can be produced industrially advantageously by the above-mentioned production method, and thus completed the present invention. did. The object of the present invention is to coat inorganic powder or organic pigment (powder base material) uniformly and stably with an oily substance to form a powder or cake shape, without using water. We have developed an excellent oil-based powder point make-up agent that adheres easily to the skin, can be easily removed from the cake to the puff, spreads well on the skin, can be layered easily, and has a good feel on the skin. It is an object of the present invention to provide an advantageous manufacturing method. That is, the present invention involves mixing an aqueous emulsion of an oily substance, an inorganic powder, or further an organic pigment, and then adding a water-miscible organic liquid thereto under stirring to demulsify the aqueous emulsion. ,
This is a method for producing an oil-based powder point makeup composition, which is characterized in that the coagulated product produced by demulsification is separated from the liquid and dried. The above-mentioned coagulated material is one that separates and precipitates from the liquid phase when left to stand after being demulsified, and is mainly a mixture with inorganic powder or organic pigment coated with an oily substance. It is. The liquid component is a mixed solution consisting of water, a water-miscible organic liquid, and a small amount of an emulsifier. Powder point make-up agents in oil-based powder point make-up agents include powder eye shadow, cake-like eye shadow, powder eye brow, cake-like eye brow, powder lipstick, cake-like lipstick, powder mascara, cake-like mascara, and powder. These are blusher, cake-like blusher, powder eyeliner, and cake-like eyeliner. The water-miscible organic liquid used in the present invention is one that does not show acidity or alkalinity when mixed with water, and is one that does not exhibit acidity or alkalinity when mixed with water.
47, 1974, pp. 28-37) Solubility parameter formula: δ = (ΔE/V) 1/2 (ΔD is heat of vaporization, V is molecular volume, δ is solubility parameter), δ is 8.2 to 16.0 (preferably 9.5
~15.0) is desirable. Examples include methanol, ethanol, isopropanol, n-butanol, cellosolve, butyl cellosolve, butyl carbinol, methyl ethyl ketone, methyl isopropyl ketone, acetone, ethyl acetate, cello acetate, butyl acetate, carbitol, and the like. These materials may be used alone or in combination. Particularly the most preferred water-miscible organic liquids are etalur, isopropyl alcohol, n-
These are propanol, n-butanol, and acetone. The amount of water-miscible organic liquid added is the amount necessary to demulsify the aqueous emulsion, and is usually 20 to 130% by weight, preferably 30 to 100% by weight, based on the weight of the aqueous emulsion. If the amount of water-miscible organic liquid used is too small, the demulsification of the aqueous emulsion of the oil-based substance will not proceed sufficiently, and the coating of the oil-based substance on the surface of the powder base material for cosmetics will become uneven, resulting in over-coating, etc. It tends to be difficult to impart the desired effect, and if the amount is too large, the oily coating that has been coated with the trouble tends to fall off easily, and its uniformity, stability, and cosmetic effect tend to deteriorate. The lower the water content of the water-miscible organic liquid used in the present invention, the easier it is to use, but it is usually less than 50% (0 to 5%).
50%) is used. By adding the above-mentioned water-miscible organic liquid to demulsify the aqueous emulsion of the oily substance, a powder base material in which the oily substance dispersed in the system is co-dispersed simultaneously and instantaneously with coagulation. , can be adsorbed onto the surface to form a uniform coating layer (oil-based film), thereby making it possible to obtain a sample product with good adhesion properties to the skin. Further, by using a water-miscible liquid (for example, alcohol, acetone, etc.), the specificity of its effects is remarkable, such as rapid drying of the coagulated material and easy pulverization. The aqueous emulsion of an oily substance as used herein refers to a conventional oil-in-water emulsion and a water-in-oil emulsion containing an oily substance for cosmetics as the oil component. The oily substances used in the emulsion are oily substances for cosmetics, such as ordinary oils, wax hydrocarbon oils, higher fatty acids, higher alcohols, esterified oils, silicone oils, etc., and one or more of them are preferred. used in combination. Examples of the above-mentioned fats and oils include castor oil, avocado oil, and cacao butter; examples of the wax include beeswax, lanolin, and carnauba wax; and examples of the hydrocarbon oil include liquid paraffin, squalane, and the like.
Bristan, hydrogenated polyisobutylene, etc.
Examples of the esterified oil include, but are not limited to, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl succinate, isopropyl isostearate, and 2-ethylhexyl palmitate. Examples of emulsifiers contained in the emulsion include fatty acid soaps, anionic surfactants such as higher alcohol sulfate ester salts and higher alkylphenol sulfonates, fatty acid monoglycerides,
Examples include nonionic surfactants such as fatty acid esters of sugars, polyoxyethylene alkyl ethers, and polyoxyethylene higher alkyl phenol ethers. The content of oily substances in the aqueous emulsion is usually 5 to 60% by weight, preferably 10 to 50% by weight.
Although the amount of the aqueous emulsion of the oily substance mixed varies depending on the oil concentration and demulsification conditions, it is usually 20 to 200% by weight (preferably 50 to 150% by weight) based on the total weight of the powdery substance. Generally, if the amount of the aqueous emulsion is too small, the coating on the powdery substance tends to be uneven, and if it is too large, the excess oil may make it sticky and feel bad on the skin. Preferable inorganic powders to be used include, for example, magnesium carbonate, titanium oxide, iron oxides, talc, kaolin, mica, titanium mica, calcium carbonate, magnesium silicate, bentonite, zinc oxide, zinc stearate, etc. It can be mentioned as a thing. Examples of the organic pigments include organic pigments Red No. 201, Red No. 202, Red No. 204, and Red No. 205.
No., Red No. 206, Red No. 207, Red No. 226, Yellow 4
Examples include aluminum lake No. 203, yellow No. 203, yellow No. 401, blue No. 1 aluminum lake, blue No. 404, and orange No. 203. The amount of organic pigment used is usually 5 to 10% by weight based on the weight of the inorganic powder. These powder base materials may be used singly or in combination. When the powders are mixed with an aqueous emulsion of an oily substance, they are stirred and mixed using a kneader or mixer until each powder is uniformly dispersed in the aqueous emulsion. Next, a water-miscible organic liquid is gradually added to this mixed dispersion system under stirring. The amount of oil that is close to each powder particle can be adsorbed onto the particle surface of each powder to form an oily coating. In this case, if the powder base material is immersed in the organic liquid in advance and then mixed and dispersed in the aqueous emulsion, a more uniform coating can be easily formed on the surface of the single powder particles. Another feature of the present invention is that it can produce better cosmetic effects. Demulsified product (composed of a coagulated product consisting of a mixture of powdered inorganic or organic pigment coated with an oily substance, and a liquid component of a mixed solution consisting of water, a water-miscible organic liquid, and an emulsifier) Therefore, as a method for separating the above-mentioned coagulated material from a liquid component, a gradient method, a filtration method, a centrifugation method, etc. are employed. When drying the coagulated product after separating and removing the liquid, the water-miscible organic liquid (e.g., alcohol, acetone, etc.) that remains together with the water allows for uniform drying in an extremely short period of time. Another feature is that it can prevent powder aggregation (secondary particle formation) that tends to occur during drying. The oil-based powder point makeup powder obtained by drying has very little fusion and hardening between particles and surfaces, so it can be made into single particles with a weak external force similar to wind pressure during fluidized drying, and it can also be crushed. It's extremely easy. Therefore, when the fluidized drying method is employed, a pulverization step is not particularly required. For drying, a known drying method such as a stationary hot air drying method or a fluidized drying method is applied. After drying, crush as necessary.
It is easy to crush, and even when sieved, it can be made into a single particle to a large extent, and an oil-based powder point make-up agent with a uniform particle size can be obtained at a high yield. Furthermore, as described above, the present invention demulsifies an emulsion of an oily substance in a mixed dispersion system with a powder base material by adding a water-miscible organic solvent, thereby preventing formation of secondary particles. It is possible to easily form a stable and uniform oily film on the surface of the particles of the powder base material, and in the drying process, it is extremely easy to dry and prevents the agglomeration of oily powder point makeup that easily occurs. This technology has succeeded in sufficiently improving the shortcomings of the conventional technology, such as uniform drying in a short time and the ability to omit the pulverization process depending on the drying method, and its industrial awareness is extremely high. big. In the oil-based powder point makeup obtained by the method of the present invention, the powder base material is substantially uniformly coated with the oil-based substance, and the entire powder is in the form of a powder or cake. When using,
Its product value includes adhesion to the skin, blending (compatibility), and feeling of use, as well as the ability to remove the cake-shaped oil-based powder makeup from puffs, etc., and it is easy to layer and has a good finish. It has a high value. In the oil-based powder point make-up obtained by the method of the present invention, the powder base material (pigment) is uniformly coated with an oil-based substance, as shown in the attached photographs of FIGS. 2 and 4. That is, when looking at FIGS. 1 and 3, which show the state of the pigment before it was treated with the oil-based aqueous emulsion of Example 1, sharp edges of the pigment are observed, but the pigment treated by the method of the present invention does not. In FIGS. 2 and 4 showing the state of the pigment, the sharp edges of the pigment have disappeared and the edges are rounded, which clearly shows the uniform coating state. Figure 3 is a further enlargement of Figure 1 (showing the state of the coated pigment), but the edges of the pigment have a bulging, rounded appearance, indicating that the coating with the oily substance has further increased. clearly observed. However, in the products obtained using conventional techniques as shown in Reference Examples 1 to 3, the oil-based substance adheres non-uniformly to the powder base material and is not uniformly coated, resulting in poor adhesion, affinity, and feeling of use. It is significantly inferior to etc. Examples will be described below. % shown in examples
means % by weight, and parts means parts by weight. Reference Example 1 (Coating with oil/fat alcohol solution) While stirring 21 parts of talc, 6 parts of kaolin, 4 parts of zinc stearate, 15 parts of titanium oxide, 8 parts of iron oxide, and 2 parts of organic dye Blue No. 1 aluminum lake. A solution of 3 parts isopropyl myristate in 3 parts ethanol was spray coated and then dried. Observation of the obtained powder eyeshadow using an electron microscope revealed that the coating layer on the powder surface was non-uniform. Also, as a result of molding this powder eyelid into a cake shape using a conventional method and leaving it for three months,
A crack appeared and it also shrunk a little. The results of the usage test (panel test) are also listed in Table 1 of Example 1 below. Reference Example 2 (Coating with an oil substance alone) A mixture of 50 parts of talc, 16 parts of kaolin, 4 parts of zinc stearate, 15 parts of titanium oxide, 8 parts of iron oxide, and 2 parts of organic dye Blue No. 1 aluminum lake was stirred. Meanwhile, the particle surface was coated with 3 parts of liquid paraffin by spraying. When the produced powder eyeshadow was observed under an electron microscope, it was found that the coating layer on the powder surface was extremely non-uniform. The results of the use test for this powder eye shadow are also listed in Table 1 of Example 1. Reference Example 3 (Method of attaching an emulsion of oil and fat substances and drying while aging) 1.4 parts of sorbitan monostearate, 5 parts of polyoxyethylene glycol distearate, 4 parts of glyceryl monostearate, 6 parts of glyceryl distearate, 4 parts stearic acid, 8 parts squalane
130 parts of water (82-84°C) was mixed with stirring into a mixture (82-84°C) consisting of 100 parts of talc, 8 parts of beeswax, and 4 parts of petrolatum to emulsify it, and after 50 minutes, 200 parts of talc and rutile titanium were added. A mixture with 12 parts of white was added and heating was continued to complete lysis in 40 minutes. After leaving it to stand for an additional hour to complete the activation of the pigment, it was rolled for about an hour to polish the particles and impart uniform binding properties, and then aged at 35° C. for 7 days. Next, a mixture of 330 parts of talc, 245 parts of magnesium carbonate, 113 parts of zinc white, 8 parts of iron oxide, and 2 parts of organic dye Blue No. 1 aluminum lake was added to this aged product, which was ground in a ball mill and sieved to obtain a product. . The obtained powder eye shadow had uneven oil coverage, insufficient adhesion and affinity to the skin, and was extremely difficult to spread, making it virtually impossible to apply multiple coats. The results of the usage test are also listed in Table 1 of Example 1. Example 1 (When using an oil-in-water emulsion in the method of the present invention) Triethanolamine was added to a molten mixture (80°C) consisting of 3 parts of stearic acid, 6 parts of liquid paraffin, 1.5 parts of beeswax, and 3 parts of lanolin. 0.7 parts and pure water
85.1 parts of an aqueous solution (80°C) was mixed in and emulsified for 5 minutes, and the mixture was cooled to 30°C to obtain an aqueous emulsion (oil-in-water emulsion) of an oily substance. Next, a mixture of 83 parts of talc, 10 parts of mica, 5 parts of titanium oxide, 8 parts of black iron oxide, and 2 parts of organic dye Blue No. 1 aluminum lake was added to this emulsion and stirred for 10 minutes to dissolve the powder base material. After uniformly dispersing the mixture, 80 parts of ethanol was gradually added and mixed over 10 minutes while stirring to demulsify the emulsion. After that, this demulsified product is subjected to a dehydration filter to separate and remove the liquid component (mixed aqueous solution consisting of water, ethanol, and emulsifier), and the remaining coagulates (main components are talc coated with an oily substance, mica, and oxidized A mixture of titanium, iron oxide, and blue No. 1 aluminum lake (in which a small amount of water, ethanol, and a trace amount of emulsifier coexist) was dried with hot air at 80 to 90°C. The drying speed was extremely fast, and the dried material was dried uniformly to the extent that it could be easily pulverized by hand, and no agglomeration of powder, which tends to occur during drying, was observed.
Thereafter, the dried product was subjected to a pulverizer (atomizer), and it was possible to easily pulverize it to a fairly uniform particle size. Next, the pulverized product was sieved to obtain the powdered eyelid powder of the present invention having extremely uniform particle diameters at a high yield. As a result of analysis of this powdered eyelid powder, the content of oily substances was 13.6% and the content of emulsifiers was 1.9%. As a result of observing this powdery eye shadow with an electron microscope, the attached drawings Figure 2 (magnification: 500x) and Figure 4 (magnification =
The sharp edges of the pigment powder are rounded as shown in Figure 1 (magnification: 500x), Figure 3 (magnification:
4400x), sharp edges of the pigment were observed], indicating that they were substantially uniformly coated with the oily substance. Next, Example 1 (Invention 1) and Reference Examples 1 to 8
Table 1 shows the results of a comparative practical test conducted by 30 female panelists between the ages of 25 and 35 on powder eyelashes.

[Table] As described above, the powdered eye shadow (not molded) of the present invention adheres well to the skin, blends well, spreads well, provides a powdery finish, and can be layered. It is clear that it is significantly superior. Next, the powdered eyelash dough of the present invention was molded into a cake shape using a molding machine in a conventional manner to obtain a cake-like eyelash dough of the present invention. When this cake-shaped eyelid cake was left in a temperature-controlled room for one year in which the temperature was changed back and forth between 45°C and -15°C, it remained stable without cracking, shrinkage (thinning), or other changes. Next, this cake-like eyelash dough (invention 1)
Table 2 shows the results of a practical test conducted by the same 30 panelists described above using the powdered eyelash dough of Reference Examples 1 to 3 and a cake-like eyelash dough formed in the same manner.

【table】

[Front] Take it and stretch it out while pressing.
As is clear from comparing each sample in the results of Table 1 and Table 2, the powdered eyelash dough of the present invention has a substantial effect even when used as it is or when molded into a cake. The uniqueness of the action and effect of the present invention is remarkable because it exhibits the same excellent cosmetic effects, spreads well on the skin, adheres well to the skin, and provides a powder-free finish. Example 2 (When water-in-oil emulsion is used in the method of the present invention) 5 parts of sorbitan sesquiolate, 5 parts of beeswax
A molten mixture (80°C) consisting of 22 parts of liquid paraffin, 5 parts of lanolin, 5 parts of lanolin alcohol, and 5 parts of petrolatum was emulsified by mixing it with an aqueous solution (80°C) of 0.5 parts of Boushia dissolved in 52.5 parts of water. A water-in-oil emulsion was prepared. The procedure of Example 1 was repeated except that 60 parts of this emulsion, 100 parts of the powder base material of Example 1, and 60 parts of ethanol were used. It contained 17.8% and emulsifier 2.9%. Further, the surface of the powder base material was substantially uniformly coated with the oily substance, and the cosmetic effect was almost as good as when the oil-in-water emulsion of the present invention was used. The results are shown in Table 3. The effectiveness in this case was judged by three specialized inspectors, and very good was marked with ◎, good with ○, somewhat poor with △, and very bad with ×.

[Table] Next, the powdered eyelash dough of Invention 2 was compression molded in the same manner as Invention 1 to form a cake. This cake-like eyelid dough was left in the constant temperature room for one year as in the case of Invention 1, but it was found to be extremely stable without any abnormalities. Next, as a result of comparing the cosmetic effects of the cake-like eyelash dough of the present invention 2 and the cake-like eyeshadow dough of the present invention 1, almost no difference was observed. The results are shown in Table 4.

[Table] Example 3 Powdered eye shadow was produced in the same manner as in Invention 1 of Example 1, except that various organic liquids shown in Table 5 were used instead of ethanol, and its cosmetic effect etc. . The results are shown in Table 5.

【table】

[Table] As is clear from this result, among the water-miscible organic liquids that can be used in the present invention, ethanol, n-propanol, isopropanol, acetone, n-
Butanol and cellosolve are most preferred. Example 4 A cake-like eye shadow was produced in the same manner as in Invention 1 of Example 1, except that various organic liquids shown in Table 6 were used instead of ethanol, and its cosmetic effects were examined. The results are shown in Table 6.

[Table] Also in this case, ethanol, n-propanol, n-butanol, isopropanol, and cellosolve acetone are most preferred. Example 5 (When the powder base material is used after being immersed in alcohol in advance) The powder base material of Example 1 (the present invention) was immersed in ethanol (30°C) for 1 hour, and then separated from the alcohol. I took it out. A powder eyeshadow was produced in the same manner as in Example 1, except for using this pretreated powder base material. The uniformity of the coating layer (oil-based substance) on the surface of the powder base material of the obtained powdery eyeshadow was even better than that of the powdery eyeshadow of Example 1. The content of oily substances was 11.8% and the content of emulsifiers was 1.8%. As Comparative Example 1, the powder base material of Reference Example 1 was pretreated with ethanol in the same manner as in the present invention, and then treated in the same manner as in Reference Example 1 to produce a powdered eye shadow. The coating on the surface was extremely non-uniform, and there was no noticeable difference from the powdery eye shadow of Reference Example 1. Further, as Comparison-2, the powder base material of Reference Example 2 was treated in the same manner as in the present invention to produce a powdered eye shadow. The surface coating of the obtained powdered eyeshadow was extremely non-uniform, and as shown in Reference Example 2.
There was no significant difference between the powder and the powdered eyeshadow. Furthermore, as Comparison-3, the powder base material of Reference Example 3 was pretreated with ethanol in the same manner as in the present invention.
A powdered eyelash dough was produced in the same manner as in Reference Example 3. The surface coating of the obtained eyeshadow was extremely non-uniform and no difference from the powdery eyeshadow of Reference Example 3 was observed. Next, a comparative practical test was conducted in the same manner as in Example 1. The results are shown in Table 7.

[Table] In this way, even if the powder base material is pretreated with ethanol (immersion treatment) and then coated with an oily substance, the methods of Comparisons 1 to 3 do not work in Reference Examples 1 to 3.
Similar to 3, uniform coating cannot be achieved and the practical effect is also inferior. However, pretreatment according to the method of the present invention further improves the uniformity of the surface coating,
In addition, the cosmetic effect in the practical test was significantly superior, and was slightly improved compared to the case of Example 1 without pretreatment, and the difference was sufficiently recognized. Example 6 Powder-like blush and cake-like blush were produced in the same manner as in Example 1 for the powdery eyeshadow and cake-like eyeshadow of the present invention, except that two parts of the organic pigment Red No. 226 were added. . The content of oily substance in both of the obtained blushes was 12.3% and the content of emulsifier was 1.8%. Next, we similarly examined the storage stability of the cake-like blush, and found that no change was observed even after it was left for one year. Further, as a result of observation using an electron microscope, the powder base material was coated with an oily substance. Their cosmetic effects were extremely good as shown in Tables 8 and 9. Example 7 Instead of 2 parts of iron oxide, 10 parts of carbon black,
Using 2 parts of black iron oxide, powdered mascara and cake-like mascara were produced in the same manner as in the case of the powdery eyeshadow and cake-like eyeshadow of the present invention in Example 1. The content of oily substances in both of the obtained mascaras was 9.9%, and the content of emulsifiers was 1.8%. Next, the storage stability of the cake-like mascara was similarly examined, and no change was observed even after it was left for one year.

【table】

[Table] Example 8 Instead of 2 parts of black iron oxide, 6 parts of carbon black
1 part, 2 parts black iron oxide, and 2 parts red iron oxide. The other procedures were the same as those for the powdered eyeshadow and cake-like eyelashes of the present invention in Example 1 to produce powdery eyelashes and cake-like eyelashes. The content of oily substances in both of the obtained eye brows was 15.1% and the content of emulsifier was 1.9%. Next, as a result of investigating the storage stability of cake-like eye brows,
Even after leaving it for one year, no change was observed.
In addition, the finish, adhesion, affinity, feel during application, spreadability, and layering of powder eye brow makeup are all very good (◎
mark). In addition, the cake-like eye brow removal from the cake to the brush, makeup finish, adhesion, and affinity are also very good (marked with ◎).
It was hot. Example 9 Instead of 2 parts of black iron oxide, 1 part of black iron oxide, 1 part of organic dye Red No. 202, 4 parts of Red No. 204, red
In addition to using one part of No. 226 and one part of orange No. 203,
A powder lipstick and a cake-like lipstick were produced in the same manner as in the case of the powder eyeshadow and cake-like eyeshadow of the present invention in Example 1. The content of oily substance in both lipsticks obtained was 13.2%, and the content of emulsifier was 2.0%. Next, we examined the storage stability of the cake-shaped lipstick and found that no change was observed even after it was left for one year. Also, the makeup finish of powder lipstick,
Adhesion to the lips, affinity, feel when applied, spreadability, and layering are all very good (◎
mark). In addition, the cake-like lipstick had very good transfer from the cake to the brush, makeup finish, adhesion, and affinity (blend) (marked with ◎). Reference Example 4 (Additional study of the example in Patent No. 44304) After mixing 21 g of lanolin, 8 g of gum albia, and 306 c.c. of water with stirring, further add 2.7 g of water and stir to prepare an aqueous emulsion of lanolin. did. Next, while stirring this emulsion 2.7, add 375 g of zinc oxide (zinc white) and 75 g of talc (talc), continue stirring vigorously, and stop stirring when the upper liquid becomes transparent. The mixture was filtered, pressed, dehydrated, dried with hot air at 80-90°C and ground to obtain a lanolin-coated pigment. When particles of this lanolin-coated pigment were observed under an electron microscope (magnification: 4,400 times), it was found that the coating state of lanolin on the surface of talc and the surface of zinc oxide was extremely non-uniform. Next, this lanolin-coated pigment was compression molded into a cake shape by a conventional method to obtain a cake-like oily white powder. A practical test of this cake-like oily white powder was conducted by three specialized inspectors. As a result, the removal of the cake from the puff (application tool), the finish of the makeup,
Adhesion to the skin, blendability to the skin, and spread on the skin were all somewhat poor (△), and it was impossible to apply over the skin, which was very poor (x). Reference Example 5 (Manufacturing powder blush using the pigment treatment method described in the Examples of Patent No. 44304) Instead of the mixture of talc and zinc oxide, 90 g of red iron oxide and 90 g of titanium mica treated with titanium oxide were used. The same procedure as in Reference Example 4 was carried out except that an inorganic pigment mixture consisting of 9 g of titanium oxide and 234 g of talc was used.
A lanolin-coated pigment was obtained. As a result of observing the lanolin-coated pigment particles using an electron microscope (magnification: 4400 times), it was found that the coating state of the lanolin on the surfaces of red iron oxide, titanium oxide-treated mica titanium, titanium oxide, and talc was extremely non-uniform. Next, this lanolin-coated pigment was compression molded into a cake shape by a conventional method to obtain a cake-like oily powder blusher. A practical test of this cake-like oily powder blusher was conducted by three specialized inspectors. As a result, the removal of the cake from the puff, the finish of the makeup, adhesion to the skin, blending into the skin, and spread on the skin were all somewhat poor (△), and it was impossible to layer it on the skin, making it extremely difficult to apply. It was bad (x). Example 10 While stirring the aqueous lanolin emulsion used in Reference Example 4, 90 g of red iron oxide, 90 g of titanium oxide treated mica titanium, 9 g of titanium oxide,
After adding 234 g of talc and uniformly dispersing it, 1 part of ethyl alcohol was gradually added and mixed over 10 minutes to demulsify the emulsion, and then the following steps were carried out in the same manner as in Reference Example 4. An oily powder blusher of the present invention was obtained. When this oily powder blush was observed under an electron microscope (magnification: 4,400 times), it was found that the surface of each of the above-mentioned inorganic pigments was coated with lanolin in an extremely uniform manner.
Next, this oily powder blusher was compression molded into a cake shape by a conventional method to obtain a cake-like oily powder blusher. A practical test of this cake-like oily powder blusher was conducted by three specialized inspectors. As a result, the puff removal from the cake, the finish of the makeup, the adhesion to the skin, the blending into the skin, and the spread on the skin were all extremely good (◎), and it was possible to apply multiple layers on the skin, which was extremely good. It was (◎).

[Brief explanation of the drawing]

Figures 1 and 3 show the surface state of the pigment (powder base material) used in Example 1 before treatment (Figure 1 shows 500
Fig. 3 is an electron micrograph showing magnification of 4400 times. Figures 2 and 4 show the surface condition (second grade) of the pigment (powder base material coated with an oily substance) (powder eye shadow) obtained by the treatment in Example 1.
The figure is an electron micrograph showing a magnification of 500 times and Fig. 4 a magnification of 4,400 times.

Claims (1)

[Claims] 1. After mixing an aqueous emulsion of an oily substance and an inorganic powder or further an organic pigment, a water-miscible organic liquid is added thereto under stirring to demulsify the aqueous emulsion, and then the demulsification produces A method for producing an oil-based powder point make-up agent, which comprises separating the coagulated product from the liquid and drying it.