JPS61191607A - Makeup cosmetic - Google Patents

Abstract

PURPOSE:To provide a makeup cosmetic compounded with fine powder of barium sulfate, and giving a durable cosmetic effect without losing the luster and transparency of the makeup coating film. CONSTITUTION:A makeup cosmetic compounded with 1-50wt% barium sulfate having an average particle diameter of 0.01-0.2mu. The above average particle diameter is 1/100-1/5 of the size of conventional barium sulfate powder. The durability of the cosmetic effect can be improved without lowering the luster and the transparency of the coating film by adding the powder to the cosmetic as it is or in the form of a paste obtained by kneading the powder with an oil by a roller, etc. The above cosmetic may contain conventional additives within the range to maintain the effect of the invention.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a makeup cosmetic containing fine particles of barium sulfate, which has excellent transparency when applied and has excellent makeup retention over time.

[Prior Art] Makeup cosmetics such as foundations, eye shadows, blushes, and lipsticks are usually composed of powder, oil, water, wax, etc., and the powder part contains colored powders such as pigments and lakes, talc, kaolin, etc. It consists of extender pigments such as 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 the makeup film for a long time.

In other words, when makeup cosmetics are kept on the skin and lips for a long time, they blend with sebum and sweat.
So-called make-up smearing occurs, and physical stimuli such as rubbing often cause make-up to become discolored.

When you want to prevent make-up from fading and make it last longer, so that it stays on your skin and lips for a long time,
Normally, the amount of oil is reduced and the amount of powder, ie, extender pigment is increased, but this simultaneously 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 makeup cosmetic that does not impair the gloss and transparency of the makeup film and has good makeup retention over time.

[Means for Solving the Problems] That is, the present invention provides barium sulfate (hereinafter referred to as fine barium sulfate) having an average particle size of 0.01 to 0.2μ.
This is a makeup cosmetic characterized by containing 1 to 50% by weight of.

The fine particle barium sulfate used in the present invention has an average particle size of 0.
It is barium sulfate with a particle diameter of 01 to 0.2μ, and can be obtained as BF-1, BF-10, BP-20, etc. manufactured by Sakai Chemical Co., Ltd.

Barium sulfate has been known as precipitated barium sulfate as an extender pigment for cosmetics, and has a particle size of 0.3.
They are approximately spherical particles of ~1.0μ.

For this reason, it is inferior to extender pigments such as talc and mica in terms of ease of use, such as spreading and blending, and the beauty of the finish, so it was 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 is in the form of a powder or in the form of a base mixed with oil and kneaded with a roller or the like.
It can be easily incorporated into capless cosmetics.

The particle size is desirably 0.01 to 0.2 μm, and if it exceeds 0.2 μm, the gloss and transparency of the makeup film applied will decrease, and the makeup will not last 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% by weight of the total amount of makeup cosmetics.
If the amount is less than 1% by weight, the effect of improving makeup retention will not be achieved, 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 barium sulfate particles, 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.

(Hereinafter, blank space) (Hereinafter, blank space) *-1 30 parts of the nail enamel shown in Table-2 are mixed with 10 parts of the powder shown in Table-1, and pulverized and dispersed in a closed colloid mill. Further, 60 parts of the above nail enamel is added to this mixture and dispersed. After degassing, place it on a transparent PVC sheet for 0.7 m.
After applying using the m applicator and drying the coating,
Transmittance at 520 mμ was measured using a spectrophotometer (Hitachi 124) manufactured by Hitachi. The values are measured values assuming that the transmittance of the PVC sheet is 100%.

Table-2 *-2 Cardner-Koleman method (oil is linseed oil) *-3 Barium sulfate BF-1, BF-10 manufactured by Sakai Chemical Co., Ltd.
B F -20 Table 1 shows 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) When mica is blended (e) When a lipstick is mixed with talc, the color tone is shown in Figure 1, and the color difference between (a) and (b), (c), (d) or (e). Table 3
It was shown to.

(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 3 (blank below) When fine-particle barium sulfate is blended, the color tone is the same as when no extender pigment is blended, and fine-particle barium sulfate has good gloss and transparency, and affects the color tone and makeup finish. It can be seen that it does not give On the other hand, kaolin,
It is clear that mica, talc or conventional barium sulfate dull the color and cause a loss of transparency.

Table 4 (blank below) Furthermore, among the lipsticks manufactured using the formulations 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 different from other lipsticks. The results clearly showed that makeup lasts longer.

[Example] Next, the present invention will be described in more detail using Examples. The present invention is not limited thereby.

(Left below) -Production method- First, barium sulfate is ground and dispersed in a portion of castor oil using a ball mill. The oil and wax are mixed and dissolved by heating, and the castor oil-barium sulfate and color pigments are added and dispersed. The mixture was degassed under reduced pressure, transferred to a predetermined container, and cooled and solidified to obtain a lipstick.

Table 6 shows the physical property values of Examples 1 to 3 and Comparative Examples 1 to 3.

Table-6 *-4 Transparency of lipstick coating without barium sulfate
Comparison of transparency when ○ Same level.

△　The color is slightly dull and looks like powder.

× The color is quite dull and powder-like.

*-5 Practical test 2 of 50 female panels aged 18-55
Sensory evaluation after a week. Judgment based on the makeup retention of commercially available oil-based lipsticks.

O It's quite sticky.

△ Slightly sticky.

× The stickiness is not good.

As shown in Table 6, Example 1 containing fine barium sulfate particles
．． 2.3 has excellent transparency and good makeup retention.

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 Eyeshadow stick (% by weight) Candelilla wax 7 Microcrystalline wax 5 Ceresin wax
5 lanolin
3 liquid paraffin
20 trimethylolpropane-tri2-25 ethylhexanate barium sulfate (average particle size 0.05μ) 12 mica titanium
15 Ultramarine Blue 8 1 Production method Barium monosulfate 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 degassing under reduced pressure, fill it into a designated container,
After cooling, an eyeshadow stick was obtained. It is a bright blue eyeshadow stick.

Example-5 Eyebrow pencil (% by weight) Polyethylene wax 10 Microcrystalline wax 5 Hardened 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 kneaded with black iron oxide using liquid paraffin using a three-stage roll. Mix and dissolve oil and wax, add to this, and heat and disperse. After degassing, it is cooled and finished into a pencil lead with a diameter of 3III1) using an extruder. It was a transparent black eyebrow pencil.

Example-6 Powder foundation (wt%) Barium sulfate (0.1μ, Sakai Chemical BP-LL) 5
0 Talc (specific volume 1゜5) 18 Mica 15 Red iron oxide 0.5 Yellow
1 Black 〃o, 2 Titanium oxide 6.3 Silicone oil 3 Liquid paraffin
5 Sorbitan sesquioleate 1 Preservative
Quantity Perfume Quantity - Production method ~ The extender pigment and the coloring pigment are mixed, and the other ingredients are heated, mixed and dissolved and added, and mixed and pulverized.

This was molded into a medium plate to obtain a powder foundation.

Actual J% 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) 1
0 talc 10 colored pigments 3 preservatives
0.09 Triethanolamine 0.42 Propylene glycol
5 Purified water
52.19 Fragrance
0.3 - Manufacturing method - After heating and mixing and melting the oil and surfactant, extender pigments and color pigments are added and uniformly dispersed. 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 drawings]

Figure 1 shows the following results for a certain lipstick base: (a) When nothing is blended (b) When fine particle barium sulfate is blended (C) When barium sulfate of normal particle size is blended (d) General FIG. 7 is a drawing showing the color tone when mica, which is another extender pigment, is blended (e) when talc, which is another general extender pigment, is blended. Nagi-1

Claims (1)

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