JPS6259086B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a make-up cosmetic containing fine barium sulfate particles, which has excellent transparency when applied and has excellent makeup retention over time. [Prior Art] Makeup cosmetics such as foundations, eye shadows, blushers, and lipsticks are usually composed of powder, oil, water, wax, etc., and the powder portion contains pigments,
It consists of colored powder such as lake and extender pigments such as talc, kaolin, mica, and titanium dioxide. Makeup cosmetics contribute to making the cheeks, eyes, mouth, etc. look beautiful and attractive, but
It is difficult to maintain the beauty of a makeup film for a long time. In other words, when makeup cosmetics are continuously applied to the skin or lips for a long time, they become compatible with sebum and sweat, causing so-called makeup smearing, and physical irritation such as rubbing can cause makeup to come off. It is usual. When trying to prevent make-up from fading, make it last longer, and stay on the skin and lips for a long time, it is common practice to reduce the amount of oil and increase the amount of powder, that is, extender pigment. However, doing so also causes the makeup film to lose its luster and transparency. [Problems to be Solved by the Invention] The object of the present invention is to obtain a make-up cosmetic that does not impair the gloss and transparency of the make-up film and has good makeup retention over time. [Means for Solving the Problems] That is, the present invention has an average particle size of 0.01 to 0.2μ.
This makeup cosmetic is characterized by containing 1 to 50% by weight of barium sulfate (hereinafter referred to as particulate barium sulfate). The particulate barium sulfate used in the present invention is barium sulfate having an average particle size of 0.01 to 0.2 μm, and can be obtained as BF-1, BF-10, BF-20, etc. manufactured by Sakai Chemical Co., Ltd. Barium sulfate has been known as precipitated barium sulfate as an extender pigment for cosmetics.
They are approximately spherical particles with a particle size of 0.3 to 1.0μ. For this reason, it is inferior to extender pigments such as talc and mica in terms of the feel of use, such as spreading and blending, and the beauty of the finish, so it has been mainly used as a body for lakes. The fine particle barium sulfate used in the present invention differs from these barium sulfates in that it has a particle size that is one-hundredth to one-fifth of conventional barium sulfate. The barium sulfate used in the present invention can be easily incorporated into makeup cosmetics, either as a powder or in the form of a base obtained by mixing with oil and kneading with a roller or the like. The particle size is desirably from 0.01 to 0.2μ, and if it exceeds 0.2μ, the gloss and transparency of the applied makeup film will decrease, and the makeup will not last as long. Moreover, if it is less than 0.01μ, it becomes difficult to stably incorporate it into a cosmetic base. The blending amount is 1 to 50% of the total amount of makeup cosmetics.
If it is less than 1% by weight, the effect of improving makeup retention will not be exhibited, and if it exceeds 50% by weight, the transparency will be impaired. In addition to the above-mentioned essential ingredients, the makeup cosmetics of the present invention include powders such as talc, mica, kaolin, titanium dioxide, and coloring pigments, oils, surfactants, preservatives, antifungal agents, fragrances, pigments, drugs, and polyvalent Alcohol, polymeric substances, ultraviolet absorbers, etc. can be added within the range that does not impair the effects of the present invention. [Effects of the Invention] By using fine particle barium sulfate, the make-up cosmetic composition of the present invention increases the amount of extender pigment, resulting in significantly better makeup retention, and does not impair gloss or transparency at all. Table 1 shows the characteristics of fine barium sulfate in comparison with conventional barium sulfate and other extender pigments.

[Table] From Table 1, it can be seen that fine particle barium sulfate exhibits excellent transparency when incorporated into a cosmetic base. Next, in the lipstick base shown in Table 4, (a) When nothing is blended (b) When fine particle barium sulfate is blended (c) When barium sulfate of normal particle size is blended (d) Mica When compounded with (e) talc, we made a prototype lipstick, and its color tone is shown in Figure 1, and (i)
The color difference between and (b), (c), (d), or (e) is shown in Table 3. {Each powder, especially mica, has different numerical values depending on the grade such as particle size. } Measurement was performed using Hitachi Color Analyzer 607.

[Table] When fine particle barium sulfate is blended, the color tone is the same as when no extender pigment is blended.
It can be seen that fine particle barium sulfate has good gloss and transparency, and does not affect the color tone or makeup finish. On the other hand, it is clear that kaolin, mica, talc or conventional barium sulfate dull the color and cause a loss of transparency.

【table】

[Table] Also, among the lipsticks manufactured with the formulation in Table 4, the lipstick containing barium sulfate used in the present invention remains on the lips even 4 to 5 hours after application, and is clearly superior to other lipsticks. It was shown that makeup lasts long. [Example] Next, the present invention will be described in more detail using Examples. The present invention is not limited thereby.

【table】

[Table] -Production method- First, grind and disperse barium sulfate into a portion of castor oil using a ball mill. The oil and wax are mixed and dissolved by heating, and the above castor oil-barium sulfate and color pigment are added and dispersed. The mixture was degassed under reduced pressure, transferred to a predetermined container, and cooled and solidified to obtain a lipstick. The physical property values of Examples 1 to 3 and Comparative Examples 1 to 3 are shown in the table.
6.

【table】

【table】

[Table] As shown in Table 6, Examples 1, 2, and 3 containing fine barium sulfate have excellent transparency and long-lasting makeup. Among them, Example 2, in which a volatile oil was combined, and Example 3, in which a resinous adhesive substance was blended, had extremely excellent makeup retention. In comparison, Comparative Example 1, in which conventional barium sulfate with a large particle size was blended, had poor transparency and poor makeup retention. Furthermore, Comparative Example 2 in which mica was blended as an extender pigment had powdery usability, dullness, and no transparency at all. Comparative Example 3, which does not contain extender pigments, naturally has good transparency, but has a high proportion of liquid oil, so makeup lasts poorly. Example 4 Eye shadow stake (% by weight) Candelilla wax 7 Microcrystalline wax 5 Ceresin wax 5 Lanolin 3 Liquid paraffin 20 Trimethylolpropane-tri-2-ethylhexanate 25 Barium sulfate (average particle size 0.05μ) 12 Mica titanium 15 group blue 8 -Production method- Barium sulfate is kneaded with a portion of liquid paraffin in a three-stage roll to form a paste. The oil and wax are mixed and dissolved by heating, and the pasty barium sulfate, extender pigment, and color pigment are added thereto and dispersed and mixed. After vacuum degassing,
The mixture was filled into a predetermined container and cooled to obtain an eye shadow stick. It has a clear blue-tinged eye shadow. Example 5 Eyebrow pencil Weight % Polyethylene wax 10 Microcrystalline wax 5 Hydrogenated castor oil 8 Isostearic acid triglyceride 20 Liquid paraffin 25 Barium sulfate (average particle size 0.03μ) 20 Black iron oxide 12 -Production method- Barium sulfate is converted into black iron oxide At the same time, using liquid paraffin, knead using three-stage rolls. Mix and dissolve oil and wax, add to this, and heat and disperse. After degassing, it is cooled and finished into a 3mm diameter pencil lead using an extrusion molding machine. It was a transparent black eyebrow pencil. Example 6 Powder leaf foundation (wt%) Barium sulfate (0.1μ, Sakai Kagaku BF-1L) 50 Talc (specific volume 1.5) 18 Mica 15 Red iron oxide 0.5 Yellow 〃 1 Black 〃 0.2 Titanium oxide 6.3 Silicone oil 3 Liquid paraffin 5 Sorbitan sesquiolate 1 Preservative Appropriate amount Fragrance Appropriate amount - Manufacturing method - The extender pigment and the color pigment are mixed, and the other components are heated, mixed and dissolved and added, and mixed and ground.
This was molded into a medium plate to obtain a powder foundation. Example 7 Emulsified foundation (wt%) Stearic acid 0.4 Isostearic acid 0.3 Isopropyl myristate 4 Squalane 12 POE (10) stearyl ether 2 Cetyl alcohol 0.3 Barium sulfate (average particle size 0.06μ) 10 Talc 10 Color pigment 3 Preservative 0.09 Triethanolamine 0.42 Propylene glycol 5 Purified water 52.19 Fragrance 0.3 -Production method- After heating and mixing and dissolving the oil and surfactant, extender pigments and coloring pigments are added and dispersed uniformly. To this is added a heated solution of triethanolamine and propylene glyco in purified water and emulsified. This was stirred and cooled, a fragrance was added thereto to make it uniform, and the mixture was filled into a container to obtain an emulsified foundation. This emulsified foundation had a better fit on the skin, was more transparent, and had better makeup retention than conventional emulsified foundations.

[Brief explanation of the drawing]

Figure 1 shows the results of (a) when nothing is added to a certain lipstick base, (b) when fine particle barium sulfate is added, (c) when barium sulfate of normal particle size is added, and (d) when it is added to a certain lipstick base. (e) is a drawing showing the color tone when mica, which is another common extender pigment, is blended; and (e) when talc, which is another common extender pigment, is blended.

Claims (1)

[Claims] 1. A makeup cosmetic comprising 1 to 50% by weight of barium sulfate having an average particle size of 0.01 to 0.2μ.