JP3445519B2 - Powder cosmetics - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdery cosmetic which has a light feeling of use and has a small change in coating color over time.

[0002]

2. Description of the Related Art Among cosmetics, powdery ones are used for foundations, blushers, white powders, etc. because they give a particularly light feeling of use. However, in these powdery cosmetics, when a large amount of coloring powder was blended in order to enhance the coloring power of the skin, the cosmetics became familiar to the skin immediately after the application and 10 to 30 minutes after the application. There is a problem that the coloring power and the covering power change depending on time, and the finish (coating color) changes with time.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a powdery cosmetic which contains a large amount of colored powder and exhibits little change in coating color over time.

[0004]

Means for Solving the Problems The present inventors have found that when a colored powder and an oil agent that is liquid at room temperature are used in a specific ratio, the feeling of use is light, the coloring power is high, and the change in coating color over time is suppressed. It was found that a small amount of powdery cosmetics can be obtained.

The present invention comprises the following components (A) and (B): (A) colored powder selected from iron oxide and tar dyes, 1.5 to 40% by weight, (B) an oil agent which is liquid at room temperature 1 0.5 to 30% by weight, and the weight ratio of the component (B) to the component (A) is
(B) / (A) = 0.05 to 5 is provided. In the present invention, the term "powder" means particles having a particle size of 1.0 mm or less, and the particles can freely flow at room temperature and atmospheric pressure.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The colored powder of component (A) used in the present invention is not particularly limited as long as it is selected from iron oxide and tar pigments and is usually used in cosmetics. <Revised Supplement 2> (Edited by Japan Cosmetic Engineers Association,
Yakuji Nippo Co., Ltd.), pages 330 to 387. The particle size of the powder is preferably 1 μm or less, and particularly preferably 0.005 to 1 μm.

Further, as the colored powder of the component (A), the one whose surface is hydrophobized can be used, and it is preferable because it is excellent in the effect of preventing the makeup from being damaged. The hydrophobic treatment is
According to a usual method, for example, silicone oil, fatty acid metal salt, alkyl phosphoric acid, alkali metal salt or amine salt of alkyl phosphoric acid, N-mono long-chain (8 to 22 carbon atoms) aliphatic acyl basic amino acid, silane coupling Agent, titanium coupling agent, oil agent, polyacrylic acid, and a hydrophobizing agent such as a fluorine compound having a perfluoroalkyl group.

One or more kinds of the colored powder of component (A) can be used, and the total composition is 1.5 to 40% by weight, preferably 1.5 to 30% by weight, and particularly preferably 1.5. ~ 20
It is blended by weight%. If it is less than 1.5% by weight, sufficient coloring power cannot be obtained, and if it exceeds 40% by weight, a powdery feeling is obtained.

The oil solution of the component (B) used in the present invention is a liquid at room temperature (20 ° C.), and is, for example, the latest cosmetic science <Revised supplement 2> (edited by the Japan Cosmetic Engineers Association, Yakuji Nipposha) No. 2
Among those described on pages 39 to 274, those which are liquid at room temperature can be mentioned. Further, a silicone oil or an ultraviolet absorber which is liquid at room temperature can also be used.

Specifically, for example, hydrocarbons such as liquid paraffin, liquid isoparaffin and squalane; oils and fats such as olive oil, palm oil, coconut oil, macadamia nut oil and jojoba oil; higher alcohols such as isostearyl alcohol; higher fatty acids; myristin Esters such as isopropyl acid ester; dimethyl silicone oil, cyclic dimethyl silicone oil, methyl hydrogen silicone oil,
Silicone oils such as polyether modified silicone oil, methylphenyl silicone oil, and fluorine modified silicone oil; oil-soluble UV absorbers that are liquid at room temperature such as benzophenone derivatives, paraaminobenzoic acid derivatives, paramethoxycinnamic acid derivatives, salicylic acid derivatives, etc. To be Of these, the viscosity at 20 ° C is 500 mm ² /
Oils and fats of s or less and silicone oils are preferable because they have a light feeling in use and are well compatible with coloring components.

One or more of these oil agents may be used, and the total composition is 1.5 to 30% by weight, preferably 2 to 3%.
0% by weight, particularly preferably 2 to 25% by weight is blended.
If it is less than 1.5% by weight, the oil agent is not uniformly supplied to the entire powder component, and uneven coloring occurs or the covering force is changed.
When it exceeds 30% by weight, the spreadability is deteriorated and the usability is deteriorated.

The weight ratio of the component (B) to the component (A) is (B) / (A) = 0.05-5, especially 0.1-.
A value of 4 is preferable because the surface of the coloring component is sufficiently wet with the oil agent and the change of the coloring power and the covering power is suppressed even after the makeup is applied and the coloring component does not aggregate.

The powdery cosmetic of the present invention may further contain a spherical powder and / or an elastic powder having an average particle size of 1 to 50 μm, whereby aggregation of the powder is further suppressed and the feeling of use becomes good.
Suitable spherical powders are, for example, inorganic spherical powders such as spherical silica and spherical alumina; organic polymer spherical powders such as spherical polymethylmethacrylate, spherical nylon, spherical organopolysiloxane, spherical vinyl chloride and spherical polystyrene. Can be used for The elastic powder is not particularly limited as long as it is a powder having rubber elasticity, and for example, powders of crosslinked silicone, polyurethane, polybutadiene, styrene / butadiene copolymer, butadiene / acrylonitrile copolymer and the like can be used.

These powders may have the surface treated with a metal, a metal oxide, an inorganic compound, an organic compound or the like. One or more of these spherical powders and elastic powders can be used, and it is preferable to add 0.5 to 80% by weight, particularly 1 to 60% by weight, to the total composition. In particular,
It is preferable to use spherical powder and elastic powder together.

In addition to the above-mentioned components, the powdery cosmetic of the present invention appropriately contains, as necessary, cosmetic raw materials described in "Japan General Purpose Cosmetic Raw Materials Collection, Third Edition" (edited by Japan Cosmetic Industry Federation, Yakuji Nippo). Can be manufactured according to conventional methods.

The powdery cosmetics of the present invention are applied as makeup cosmetics such as foundations, nose shadows, blushers, eye shadows and color powders, and are particularly suitable as foundations.

The powdery cosmetic of the present invention is packed in a powder in a container which is taken out through a mesh. As a container with a mesh, for example, actual open flat 5-18406
JP-A-8-131249, JP-A-9-17313
No. 6, JP-A-10-137031 and the like can be used. At the time of use, the powder may be taken out by pressing the mesh portion with, for example, a puff, and applied to the skin as it is.

[0018]

EFFECT OF THE INVENTION The powdery cosmetic of the present invention has a light feeling of use, high coloring power, and little change in coating color over time, that is, coloring power and covering power.

[0019]

[Examples] Example 1 (invention products 1 to 8 and comparative products 1 to 3) Powder foundations having the compositions shown in Table 1 were produced, and when the powder foundations were used, the feeling of use and the change in covering power were evaluated. evaluated. The results are also shown in Table 1.

(Production method) Components (1) to (6) were mixed and pulverized with a hammer mill, and then components (7) to (12) were added. After mixing using a Henschel mixer, a powdery foundation was obtained through a sieve and filled in a container with a mesh.

(Evaluation method) (1) Lightness of feeling of use: The lightness of feeling of use was sensory-evaluated by 10 professional panelists based on the following criteria. The average value of 10 persons is calculated, and the average value is 8 or more is ◎, 6 to 7.9 is ◯,
3 to 5.9 points are shown as Δ, and less than 3 points are shown as x. Very light 10 points. Light 7 points. Somewhat light 5 points. Not light 0 points.

(2) Change in covering power: After being washed by 10 professional panelists and applying commercially available skin care emulsion, each foundation was applied to the face, and the covering power immediately after application and 30 minutes after application (finishing) Feeling) was sensory evaluated. The result was judged according to the following criteria. ⊚: No change in coverage. ○: Covering power is almost unchanged. Δ: Cover power changed. X: The covering power changed significantly.

[0023]

[Table 1]

The products 1 to 8 of the present invention were excellent in lightness in use and had little change in covering power. Comparative product 1 contains a small amount of the oil agent, and the oil absorption state of the colored powder changes on the skin.
Caused a change in coverage. Comparative product 2 contained a large amount of the oil agent, and spreadability was poor and the usability was deteriorated.

Example 2 A powdery foundation having the following composition was produced in the same manner as in Example 1. This cosmetic was excellent in the feeling of use and had little change in the covering power after application.

[0026]

[Table 2] (Components) (% by weight) (1) Fluorine compound treated titanium oxide ^{* 1} 4.0 (2) Fluorine compound treated Bengala ^{* 1} 1.0 (3) Fluorine compound treated yellow iron oxide ^{* 1} 4.0 (4) Fluorine compound treated black iron oxide ^{* 1} 0.4 (5) Fine particle zinc oxide 5.0 (6) Lauroyl lysine treated mica ^{* 2} 20.0 (7) Silicon treated talc ^{* 3} 25.5 (8) Spherical Nylon powder 20.0 (9) Porous spherical silica (specific surface area 200 m ² / g) 10.0 (10) Dimethyl polysiloxane (10 mm ² / s) 5.0 (11) Octyl methoxycinnamate 5.0 (12 ) Preservative 0.1 * 1: 5% by weight of perfluoroalkylethyl phosphate diethanolamine (AG530, manufactured by Asahi Glass Co., Ltd.) * 2: 2% by weight of lauroyl lysine (Amihope LL, manufactured by Ajinomoto Co., Inc.) * 3: Methyl Hydrogenpo 2 wt% coating with Lisiloxane (KF9901, manufactured by Shin-Etsu Chemical Co., Ltd.)

Example 3 A powdery foundation having the following composition was produced in the same manner as in Example 1. This cosmetic was excellent in the feeling of use and had little change in the covering power after application.

[0028]

[Table 3] (Components) (% by weight) (1) Titanium oxide 5.0 (2) Bengala 2.0 (3) Yellow iron oxide 4.0 (4) Black iron oxide 1.0 (5) Spherical nylon powder (Average particle size 8 μm) 20.0 (6) Rubber-like silicone powder (Toray Dow Corning, Trefil E-505) 10.0 (7) Mica 47.9 (8) Dimethylpolysiloxane (10 mm ² / s) ) 7.0 (9) Octyl methoxycinnamate 3.0 (10) Preservative 0.1

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 63-162613 (JP, A) JP 9-77652 (JP, A) JP 7-258028 (JP, A) JP 4- 89422 (JP, A) JP 2000-38317 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/035

Claims (5)

(57) [Claims] 1. The following components (A) and (B): (A) 1.5 to 40% by weight of a colored powder selected from iron oxide and tar dyes, (B) an oil agent which is liquid at room temperature 1.5. ˜30% by weight, the weight ratio of component (B) to component (A) is
(B) / (A) = 0.05-5 powdery cosmetics. 2. A contract containing 2 to 25% by weight of component (B).
The powdery cosmetic according to claim 1. 3. The weight ratio of component (B) to component (A).
Is (B) / (A) = 0.1-4.
The powdery cosmetic described. 4. A spherical powder having an average particle size of 1 to 50 μm.
The powdered product according to any one of claims 1 to 3, containing
Cosmetics. 5. The method according to claim 1, which is a foundation .
The powdery cosmetic according to any one of claims.