JPH07277925A - Solid powdery cosmetic - Google Patents

Abstract

PURPOSE:To obtain a powdery cosmetic, good in touch such as slipperiness on the skin, excellent in effects on making unevennesses such as skin pores or small wrinkles inconspicuous and capable of providing a natural finish. CONSTITUTION:This powdery cosmetic contains (A) fine powder having >0.1 to <=2mum cumulative volume average particle diameter and <=2 refractive index and (B) spherical powder having 3-50mum cumulative volume average particle diameter. The total amount of the blended ingredients (A) and (B) is >=30wt.% in the whole composition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention has good spreadability on the skin,
Moreover, the present invention relates to a powder cosmetic which can make pores, fine lines, and the like inconspicuous.

[0002]

2. Description of the Related Art Powder cosmetics such as makeup cosmetics are usually produced by mixing powder for cosmetics, an oily base and other components. These cosmetics are required to have good spreadability and adhesiveness on the skin, and to cover skin defects such as spots, freckles, wrinkles, and pores, adjust the color of the skin, and prevent dryness. Functions such as protecting the Therefore, conventionally, by blending various spherical powders into powder cosmetics,
It has been performed to impart a good feeling such as good slippage and lightness of spread.

However, although the spherical powder used here is good in terms of feel, it is inferior in hiding power and cannot make pores, fine wrinkles and the like inconspicuous, and is particularly required for base makeup cosmetics. It did not meet the requirements.

On the other hand, cosmetics containing a large amount of white pigment having a high refractive index such as titanium oxide for the purpose of concealing skin defects are known, but these cosmetics have excellent concealing power and stains. Although it can cover freckles etc., it has a drawback that it spreads heavily on the skin and the finish becomes thick, and irregularities such as pores and fine lines are conspicuous and the natural finish cannot be obtained.

Therefore, the feeling of spreading on the skin is good,
A powder cosmetic having excellent concealing power and capable of naturally covering irregularities on the skin such as pores and fine lines has been desired.

[0006]

Under such circumstances, as a result of intensive studies by the present inventors, the combination of fine powder with a specific particle size and spherical powder allows the spread on the skin. The present invention has been completed by finding that a powdery cosmetic which is excellent and in which pores and fine wrinkles can be made inconspicuous can be obtained.

That is, the present invention provides the following components (A) and (B): (A) A fine powder having a volume cumulative average particle size of more than 0.1 μm and 2 μm or less and a refractive index of 2 or less, (B) A powder cosmetic containing a spherical powder having a volume cumulative average particle diameter of 3 to 50 μm and having a total compounding amount of components (A) and (B) of 30% by weight or more in the entire composition. It is provided.

The fine powder of the component (A) used in the present invention is not particularly limited as long as it has a volume cumulative average particle size of more than 0.1 μm and not more than 2 μm, and it may be either inorganic fine powder or organic fine powder. However, the shape is also spherical, flat,
It may be granular, needle-shaped, rod-shaped, or amorphous. Of these, spherical and granular ones are particularly preferable from the viewpoint of usability and the like. Examples of such fine powders include inorganic fine powders of silica, alumina, barium sulfate, aluminum hydroxide, calcium carbonate, magnesium silicate, magnesium carbonate, aluminum silicate, etc .; polyamide resin, polyethylene resin, polypropylene resin, methyl methacrylate resin. , Cellulose resins, polystyrene resins, copolymers of styrene and acrylic acid, organic fine powders of silicone resins and the like. Among these, as the inorganic fine powder, those having a low refractive index such as silica and barium sulfate are preferable because a more natural finish can be obtained. Further, to these fine powders, coloring pigments, dyes, dyes, and
It is also possible to use a colored product which is coated with a metal ion or the like and encapsulated therein, and then colored.

These fine powders have a volume cumulative average particle size of more than 0.1 μm and 2 μm or less, preferably 0.15 to 5 μm.
It should be 1.5 μm, particularly preferably 0.3 to 1.2 μm. If it is less than 0.1 μm, the feeling of use is poor,
Further, the effect of making irregularities such as pores and small wrinkles inconspicuous is reduced, and when it exceeds 2 μm, the effect of making irregularities such as pores and small wrinkle less noticeable is also unfavorable. Further, in particular, the volume cumulative average particle diameter is 0.11 to 2 μm,
Particles having a particle diameter of 0.05 μm or less and particles having a particle diameter of 5 μm or less are preferably 10% by volume or less, respectively.

In the present invention, the volume cumulative average particle diameter is an average value of the diameters of the spheres corresponding to the volume of the measured particles, and is 1 μm.
The above powder was obtained by a laser diffraction method, and the powder having a particle diameter of 1 μm or less was obtained by a laser scattering method using ethanol as a dispersion medium.

Further, the component (A) has a particularly blurring effect when applied to the skin, and thereby has an excellent effect of making irregularities such as pores and fine wrinkles inconspicuous. 2.0 or less, preferably 1.3 to 2.0,
Especially preferably, it is necessary to be 1.4 to 1.8. If it exceeds 2.0, these effects cannot be obtained.

The spherical powder of the component (B) is not particularly limited as long as it has a volume cumulative average particle diameter of 3 to 50 μm, and may be an inorganic spherical powder or an organic spherical powder. The spherical powder may be coated with a coloring pigment, a dye, a dye, a metal ion or the like by a conventional method, and may be encapsulated and colored. Examples of such spherical powder include inorganic spherical powder such as spherical silica, spherical alumina, and spherical titania; spherical polyamide resin, spherical polymethylmethacrylate resin, spherical silicone resin, spherical polyethylene resin,
Organic spherical powders such as spherical polystyrene resins and spherical cellulose resins; further, those obtained by granulating an extender pigment, a coloring pigment, etc. into a spherical shape by a usual method. Among these spherical powders, spherical silica, spherical alumina, spherical polyamide resin, spherical polymethylmethacrylate resin, and spherical silicone resin are particularly preferable from the viewpoint of usability.

It is necessary that these spherical powders have a volume cumulative average particle size of 3 to 50 μm, preferably 5 to 20 μm, and particularly preferably 5 to 10 μm. If it is less than 3 μm, the spread of the cosmetic on the skin is poor, and if it exceeds 50 μm, the adhesion to the skin is unfavorable.

In the powder cosmetic of the present invention, one kind or two or more kinds of the components (A) and (B) can be used in combination, and the amount of the components (A) and (B) to be mixed can be changed. The total is 30% by weight (hereinafter, simply indicated by%) or more, preferably 50 to 99%, particularly preferably 5 in the whole composition.
0 to 85%. If it is less than 30%, it is not preferable because the effect of spreading on the skin and making irregularities such as pores and fine lines inconspicuous cannot be sufficiently obtained. Moreover, the compounding ratio of a component (A) and a component (B) is 9.5: 0.5-0.5: 9.
5, especially from 8: 2 to 2: 8 is preferable from the viewpoint of the feeling of use and the effect of making irregularities such as pores and fine lines less noticeable.

Further, fine powder of component (A) and component (B)
The spherical powder of is a treating agent used for ordinary cosmetic pigments, such as silicone, within a range that does not impair the effects of the present invention.
It is also possible to use those surface-treated with metal soap, lecithin, amino acids, collagen, fluorine compounds and the like.

In the powder cosmetic of the present invention, silica, barium sulfate, polyamide resin,
Using a methyl methacrylate resin or a silicone resin and using a combination of spherical silica, spherical alumina, spherical polyamide resin, spherical polymethylmethacrylate resin or spherical silicone resin as the component (B) gives a natural finish and good results. It is particularly preferable in terms of feeling.

The powder cosmetics of the present invention include, in addition to the above powders, powders used in ordinary cosmetics such as silicic acid, silicic acid anhydride, magnesium silicate, talc, sericite,
Mica, kaolin, red iron oxide, clay, bentonite,
Titanium-coated mica, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, iron oxide, ultramarine blue, chromium oxide, chromium hydroxide, Inorganic powders such as calamine, carbon black and their composites; polyamide, polyester, polypropylene, polystyrene, polyurethane, vinyl resin, urea resin, phenol resin, fluororesin, silicon resin, acrylic resin, melamine resin, epoxy resin, polycarbonate Organic powders of resins, divinylbenzene / styrene copolymers, silk powders, cellulose composites, etc .; and these, surfactants, silicones, metal soaps, lecithin, amino acids, collagen, polymers , Those surface-treated with a fluorine compound such as and, coloring pigment, dye, dye, coated with a metal ion such as, those that have been encapsulated treated; organic tar-based dyes, and organic colorants such as rake. When these powders are blended, it is preferably 0.1 to 70% in the total composition.
Among these, cosmetics are makeup cosmetics,
In the case of body cosmetics, talc, sericite,
Inorganic powders such as kaolin and titanium oxide are preferred.

In addition to the above-mentioned components, the powder cosmetics of the present invention include components used in ordinary cosmetics such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids, and higher fatty acids. Solid / semi-solid oils such as alcohol; liquid oils such as squalane, liquid paraffin, ester oil, diglyceride, triglyceride, silicone oil; fluorinated oils such as perfluoropolyether, perfluorodecalin, perfluorooctane; water-soluble and oils Soluble polymers, surfactants, ethanol, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, UV absorbers, moisturizers, blood circulation promoters, cooling sensation agents, antiperspirants, bactericides, A skin activating agent or the like can be appropriately added within a range that does not impair the effects of the present invention.

The powder cosmetics of the present invention can be manufactured by a conventional method, for example, makeup cosmetics such as foundations, blushers and eye shadows; body cosmetics such as body powders and baby powders. Can be

[0020]

In the powder cosmetic of the present invention, the fine powder having a specific volume cumulative average particle diameter and the spherical powder are used in combination, whereby the fine powder acts as a light diffusing component, and the spherical powder is Since the fine powder is uniformly adhered to the skin, the feeling of slipping on the skin is good, and the effect of making irregularities such as pores and fine wrinkles inconspicuous is excellent and a natural finish can be obtained.

[0021]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.
The volume cumulative average particle diameters shown in the examples are all using ethanol as a dispersion medium and a SK laser micron sizer manufactured by Seishin Enterprise Co., Ltd., for a powder of 1 μm or more, a laser diffraction method, and for a powder of 1 μm or less. Was determined from the particle size distribution obtained by the laser scattering method.

Reference Example 1 60 g of spherical nylon powder (SP500, manufactured by Toray; average particle size 5 μm) and 40 g of titanium oxide (0.5 μm) were compounded using a hybridization system (Nara Kikai), and titanium oxide-coated spherical nylon was used. 90 g were obtained.
Further, in the same manner, yellow iron oxide-coated red nylon, red iron oxide-coated spherical nylon, and black iron oxide-coated spherical nylon were obtained by using yellow iron oxide, red iron oxide, and black iron oxide instead of titanium oxide, respectively.

Reference Example 2 50 g of mica (6 μm) and titanium oxide (0.5 μm) 5
0 g was dispersed in 500 g of water, and the method described in JP-A-60-184571 was used.
Lecithin treatment was performed according to the method of No. 1 to obtain 100 g of titanium oxide-coated mica. Similarly, yellow iron oxide, red iron oxide, and black iron oxide were used instead of titanium oxide to obtain yellow iron oxide-coated mica, red iron oxide-coated mica, and black iron oxide-coated mica, respectively.

Example 1 Powder foundations having the compositions shown in Tables 1 and 2 were produced, and the feeling of use and the finish when the powder foundations were used were evaluated. The results are shown in Tables 1 and 2.

(Production Method) The powder components were mixed using a Henschel mixer, and oil was added to the mixture to further mix them. This was filled in a medium plate to obtain a solid foundation.

(Evaluation Method) Finish: The finish when the foundation was applied to the face was visually evaluated by a professional panelist according to the following criteria. ⊚: The irregularities such as pores and wrinkles are hardly noticeable. ○: Irregularities such as pores and fine lines are slightly noticeable. Δ: Concavities and convexities such as pores and fine lines are noticeable. X: Concavities and convexities such as pores and fine lines are very noticeable.

Feeling of use: A professional panelist applied the foundation to the face with a sponge, and the feeling of use at that time was evaluated according to the following criteria. ⊚: The foundation spreads very well. ○: The foundation spreads well. Δ: The spread of the foundation was rather poor. X: Foundation spreads poorly.

[0028]

[Table 1]

[0029]

[Table 2]

Example 2 A powder foundation having the composition shown in Table 3 was used in Example 1.
It was manufactured in the same manner as above, and the feeling of use and the finish when used were evaluated in the same manner as in Example 1. The results are shown in Table 3.

[0031]

[Table 3]

Example 3 A powder foundation having the composition shown in Table 4 was used in Example 1.
It was manufactured in the same manner as above, and the feeling of use and the finish when used were evaluated in the same manner as in Example 1. The results are shown in Table 4.

[0033]

[Table 4]

Example 4 A powder foundation having the following composition was prepared in Example 1
It was manufactured in the same manner as. The foundation obtained is
It had good slipperiness on the skin and was excellent in the effect of making pores and fine lines less noticeable.

[0035]

[Table 5] (Components) (%) (1) Titanium oxide-coated spherical nylon (reference example 1) (Volume cumulative average particle size 5 μm) 35.2 (2) Yellow iron oxide-coated spherical nylon (reference example 1) (volume) Cumulative average particle size 5 μm) 6.8 (3) Red iron oxide coated spherical nylon (reference example 1) (Volume cumulative average particle size 5 μm) 2.6 (4) Black iron oxide coated spherical nylon (reference example 1) (Volume cumulative average) Particle size 5 μm) 0.7 (5) Titanium oxide coated mica (reference example 2) (Volume cumulative average particle size 6 μm) 9.8 (6) Yellow iron oxide coated mica (reference example 2) (Volume cumulative average particle size 6 μm) 3.6 (7) Red iron oxide coated mica (reference example 2) (volume cumulative average particle size 6 μm) 1.3 (8) Black iron oxide coated mica (reference example 2) (volume cumulative average particle size 6 μm) 0.4 (9) Spherical polymethylmethacrylate resin (volume cumulative average particle size 0 4μm refractive index 1.49) 30.0 (10) oil (methylpolysiloxane) 9.6

Example 5 Loose type face powders having the compositions shown in Tables 6 and 7 were produced, and the feeling of use and the finish when the powders were used were evaluated in the same manner as in Example 1. The results are shown in Tables 6 and 7.

(Manufacturing Method) Powder components were mixed using a Henschel mixer, oil was added to the mixture and further mixed, and then a loose type face powder was obtained through a sieve.

[0038]

[Table 6]

[0039]

[Table 7]

Example 6 (Powder Foundation) The components (8) to (13) of Example 1 were replaced with fine powders, and each was replaced by a perfluoroalkyl phosphate ester dioxy according to the method described in US Pat. No. 3,632,744. Ethylamine salt ((C _n H _{2n + 1} C ₂ H ₄ O) _y P (= O) (ONH ₂ (CH ₂ CH ₂ OH) ₂ )
_3-y ] (n = 6 to 18, the average of n = 9, 2>y> 1), the fine powder is dispersed in the aqueous solution, stirred at room temperature, filtered, and dried to obtain a treated powder. And a perfluoroalkyl ether (FOMBLINHC / 04; manufactured by Ausimont Co., Ltd.) in place of the methyl polysiloxane of the component (16), added in the same amount as in Example 1, respectively, and powder foundation was similarly added. Obtained.
Each of the obtained powder foundations had good slipperiness on the skin and was excellent in the effect of making irregularities such as pores and fine wrinkles inconspicuous.

Example 7 (Powder Foundation) Instead of the fine powder of the component (8) of Example 2, this was modified according to the method described in US Pat. No. 3,632,744, and diheptadecafluorodecyl phosphate (C ₈ F) was used. ₁₇ C ₂ H ₄ O) ₂ P (= O) (OH) and heptadecafluorodecyl phosphate ((C ₈ F ₁₇ C ₂ H ₄ O) P (= O) (O
H) ₂ ] is dispersed in an isopropanol solution of a mixture of about 1: 1 and the powder obtained by removing the solvent under reduced pressure is used. Further, instead of the methyl polysiloxane of the component (9), Perfluoroalkyl ether (FOM
BLIN HC / 04; manufactured by Ausimont)
The same amounts as in Example 2 were added to each, and a powder foundation was obtained in the same manner. The obtained powder foundation had good slipperiness on the skin and was excellent in the effect of making irregularities such as pores and fine lines less noticeable.

Example 8 (Powder Foundation) Instead of the spherical powder of components (3) to (7) of Example 3,
Each of them is based on the method described in US Pat. No. 3,632,744.
Diheptadecafluorodecylphosphate [(C₈F ₁₇C₂H_FourO)
₂P (= O) (OH)] and the spherical powder treated in the same manner as in Example 7.
Use the body to add methylpolysiloxane as component (13)
Instead of perfluoroalkyl ether (FOMBLIN
 HC / 04; manufactured by Ausimont Co., Ltd.
Powder fan was added in the same amount as in Example 3
I got a foundation. Obtained powder foundation
Has good slipperiness on the skin, and you should be careful of irregularities such as pores and fine lines.
It was excellent in the effect of standing up.

Example 9 (Powder Foundation) The spherical powder of the component (9) of Example 4 was replaced with a spherical powder of diheptadecafluorodecylphosphate (C ₈ F) according to the method described in US Pat. No. 3,632,744. ₁₇ C ₂ H ₄ O) ₂ P (= O) (OH) and heptadecafluorodecyl phosphate ((C ₈ F ₁₇ C ₂ H ₄ O) P (= O) (O
H) ₂ ] was used in the same manner as in Example 7, and the perfluoroalkyl ether (FOMBLIN HC was used instead of the component (10) methylpolysiloxane.
/ 04; manufactured by Ausimont Co., Ltd.) and added in the same amount as in Example 4 to obtain a powder foundation in the same manner. The obtained powder foundation had good slipperiness on the skin and was excellent in the effect of making irregularities such as pores and fine lines less noticeable.

Example 10 (loose type face powder) A perfluoroalkyl phosphate ester was used according to the method described in US Pat. No. 3,632,744, instead of the fine powders of components (5) to (9) of Example 5. Dioxyethylamine salt ((C _n H _{2n + 1} C ₂ H ₄ O) _y P (= O) (ONH ₂ (CH ₂ CH ₂ OH) ₂ )
_3-y ] (n = 6 to 18, average of n = 9, 2>y> 1) was used in the same manner as in Example 6, and the component (12) was replaced with methylpolysiloxane. Perfluoroalkyl ether (FOMBLIN HC / 04; manufactured by Ausimont Co., Ltd.) was added in the same amount as in Example 4 to obtain a face powder in the same manner. The obtained face powder had good slipperiness on the skin and was excellent in the effect of making irregularities such as pores and wrinkles inconspicuous.

Example 11 A blusher having the following composition was produced.

(Production Method) The powder components were mixed using a Hayschel mixer, and oil was added to the mixture to further mix them. This was filled in a medium plate to obtain cheek red.

[0047]

[Table 8] (Components) (%) Mica (volume cumulative average particle size 6 µm) 12.94 Talc (volume cumulative average particle size 10 µm) 20.0 Spherical nylon (volume cumulative average particle size 5 µm) 30.0 Bengal 0.1. 14 Yellow Iron Oxide 0.11 Black Iron Oxide 0.01 Red No. 226 0.40 Spherical Polymethyl Methacrylate Resin (Volume Cumulative Average Particle Size 0.4 μm Refractive Index 1.49) 30.0 Oil (Methyl Polysiloxane) 6 .4

The obtained blusher had good slipperiness on the skin and was excellent in the effect of making irregularities such as pores and fine lines inconspicuous.

Example 12 A powder eye shadow having the following composition was produced.

(Manufacturing method) The powder components were mixed using a Henschel mixer, and oil was added to this and further mixed. This was filled in a medium plate to obtain a powder eye shadow.

[0051]

[Table 9] (Components) (%) Mica (volume cumulative average particle size 6 μm) 13.8 Sericite (volume cumulative average particle size 8 μm) 15.0 Spherical polymethyl methacrylate resin (volume cumulative average particle size 5 μm) 30 0.0 Red iron oxide 1.7 Yellow iron oxide 0.3 Black iron oxide 1.2 Ultramarine blue 2.0 Spherical polymethylmethacrylate resin (volume cumulative average particle size 0.4 μm, refractive index 1.49) 30.0 Oil (squalene) 6.0

The obtained powder eye shadow had good slipperiness on the skin and was excellent in the effect of making irregularities such as wrinkles inconspicuous.

Example 13 A body powder having the following composition was produced.

(Production method) The powder components were mixed using a Henschel mixer, and oil was added to the mixture to further mix. This was passed through a sieve to obtain a body powder.

[0055]

[Table 10] (Components) (%) Talc (volume cumulative average particle size 10 μm) 37.8 Spherical nylon (volume cumulative average particle size 5 μm) 30.0 Spherical polymethylmethacrylate resin (volume cumulative average particle size 0.4 μm) Refractive index 1.49) 30.0 Oil (methyl polysiloxane) 2.0 Dipotassium glycyrrhizinate 0.1 Perfume 0.1

The obtained body powder had good slipperiness on the skin and was excellent in the effect of making irregularities such as wrinkles inconspicuous.

Claims (4)

[Claims] 1. The following components (A) and (B): (A) Fine powder having a volume cumulative average particle size of more than 0.1 μm and 2 μm or less and a refractive index of 2 or less, and (B) volume. A powder cosmetic containing a spherical powder having a cumulative average particle size of 3 to 50 μm, and the total amount of the components (A) and (B) compounded is 30% by weight or more in the entire composition. 2. The mixing ratio of the component (A) and the component (B) is
The powder cosmetic according to claim 1, which has a weight ratio of 9.5: 0.5 to 0.5: 9.5. 3. The powder cosmetic according to claim 1, wherein a part or all of the spherical powder of component (B) is a colored spherical powder. 4. A colored plate-shaped powder is further contained.
The powder cosmetic according to any one of 1 to 3.