SOLID POWDER COSMETIC

Abstract

An objective of the present invention is to provide a solid powder cosmetic excellent in impact resistance and usability despite that boron nitride and spherical resin particle are blended in a large amount. The present invention provides a solid powder cosmetic comprising: 12-30 mass % of synthetic fluorphlogopite iron; 5-15 mass % of boron nitride; and 5-15 mass % of phenyl-modified silicone spherical elastic powder.

Claims

1. A solid powder cosmetic, comprising: 12-30 mass % of synthetic fluorphlogopite iron; 5-15 mass % of boron nitride; and 5-15 mass % of phenyl-modified silicone spherical elastic powder.

2. The solid powder cosmetic according to claim 1, further comprising: 0.5-6 mass % of dextrin fatty acid-treated low-temperature-calcined zinc oxide.

3. The solid powder cosmetic according to claim 1, further comprising: 15-25 mass % of carboxy silicone soap-treated powder.

4. The solid powder cosmetic according to claim 1, further comprising: 0.5-6 mass % of stearoxymethylpolysiloxane.

5. (canceled)

6. The solid powder cosmetic according to claim 2, further comprising: 15-25 mass % of carboxy silicone soap-treated powder.

7. The solid powder cosmetic according to claim 2, further comprising: 0.5-6 mass % of stearoxymethylpolysiloxane.

8. The solid powder cosmetic according to claim 3, further comprising 0.5-6 mass % of stearoxymethylpolysiloxane.

9. The solid powder cosmetic according to claim 1, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

10. The solid powder cosmetic according to claim 2, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

11. The solid powder cosmetic according to claim 3, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

12. The solid powder cosmetic according to claim 4, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

13. The solid powder cosmetic according to claim 6, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

14. The solid powder cosmetic according to claim 7, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

15. The solid powder cosmetic according to claim 8, wherein: the cosmetic is produced by a wet preparation method using water as a main dispersion medium.

Description

EXAMPLES

[0084] Hereinafter, the examples of the present invention will be explained; however, the present invention is not limited by these examples. The quantities in the below-described formulations are in mass %.

[0085] Initially, the production method of cosmetics used in the examples and evaluation methods thereof will be explained.

<Production Method of Solid Powder Cosmetic>

[0086] Powder components and oil components, which have been melted by heating as necessary, described in the formulations of the table below were mixed with a Henschel mixer and then ground with a pulverizer to obtain a uniform mixture. To the mixture, the equal amount of water (i.e., volatile dispersion medium) was added, and a slurry was obtained by mixing with a dispersion mixer. The slurry was filled into an inner plate, and the solvent was removed by suction, and then drying was carried out to obtain a solid powder cosmetic.

<Evaluation of Solid Powder Cosmetic>

(a) Impact Resistance

[0087] A solid powder cosmetic was placed in a cosmetic container such as a compact, and the number of times until breakage was examined by dropping it on a metal plate, from the height of 30 cm, in a state that the cosmetic surface is facing downward. The number of test samples were (N)=3 for the same batch. Cosmetics were evaluated to have satisfactory impact resistance if the average drop number was at least 6, and to have excellent impact resistance if the average drop number was 7 or higher.

(b) Usability

[0088] Ten expert panelists of cosmetics were asked to apply a solid powder cosmetic on the skin and to evaluate, in 5-scale rating (between very poor usability: 0 and very good usability: 5), for “(on the skin) light spreadability, smoothness, and a lack of powdery texture”. The average evaluation value was calculated, and the judgement was made as described below and shown with symbols in the table.

Judgement

[0089] A: The average evaluation value is four or more. [0090] B: The average evaluation value is three or more and less than four. [0091] D: The average evaluation value is two or more and less than three. [0092] E: The average evaluation value is less than two.

(c) Evaluation of Makeup Lasting

[0093] Ten expert panelists of cosmetics were asked to apply a solid powder cosmetic on the skin. After 3 hours, three expert evaluators were asked to evaluate in 10-scale rating (between very poor makeup lasting: 0 and very good makeup lasting: 10) for each evaluation item “wrinkling evaluation” and “shininess evaluation” based on the below-described evaluation criteria. The average evaluation value was calculated, and the judgement was made as described below and shown with symbols in the table.

Judgement

[0094] A: The average evaluation value is nine or more. [0095] B: The average evaluation value is six or more and less than nine. [0096] C: The average evaluation value is four or more and less than six. [0097] D: The average evaluation value is two or more and less than four. [0098] E: The average evaluation value is less than two.

(d) Hardness

[0099] The level of needle penetration from the surface of each molded product was measured with the Olsen hardness tester (manufactured by Ueshima Seisakusho Co., Ltd.), the average value for the number of tests (N)=5 was calculated. The average value is preferably within the range of 30-100.

[0100] In the present specification, the symbols below represent the following states. [0101] A: Excellent [0102] B: Good [0103] C: Acceptable [0104] D: Unacceptable [0105] E: Bad

[0106] The compounds used in the following test examples and examples are as follows. [0107] 1: PDM-FE (manufactured by TOPY Industries, Ltd) [0108] 2: SHP-3 (manufactured by Mizushima Ferroalloy Co., Ltd.) [0109] 3: KSP-300 (manufactured by Shin-Etsu Polymer Co., Ltd.) [0110] 4: KF-96A-6cs (manufactured by Shin-Etsu Polymer Co., Ltd.) [0111] 5: KF-56A (manufactured by Shin-Etsu Polymer Co., Ltd.) [0112] 6: PDM-9WA (manufactured by TOPY Industries, Ltd) [0113] 7: SP-500 (manufactured by TORAY Industries, Ltd) [0114] 8: KF-7002 (manufactured by Shin-Etsu Polymer Co., Ltd.) [0115] 9: PLASTIC POWDER D-400 (manufactured by Toshiki Pigment Co., Ltd.)

Test Example 1

[0116] The cosmetics of the formulations described in Table 1 were prepared by using the above-described methods. The results are shown in Table 1.

TABLE-US-00001 TABLE 1 Test examples 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 Formulation Powder Zinc decyl trisiloxanecarboxylate- 23.0 23.0 18.0 23.0 20.0 28.0 23.0 23.0 30.0 components treated talc Synthetic fluorphlogopite iron*.sup.1 20.0 20.0 20.0 20.0 20.0 10.0 20.0 20.0 — Muscovite 10.0 10.0 10.0 15.0 8.0 20.0 20.0 10.0 30.0 Boron nitride*.sup.2 10.0 10.0 10.0 5.0 15.0 10.0 — 10.0 — Silicone-treated titanium dioxide 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 (Pigment grade) Aluminum stearate-treated 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 titanium oxide (ultrafine particle grade) Silicone-treated red iron oxide 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Silicone-treated yellow iron oxide 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 Silicone-treated black iron oxide 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Spherical silicone resin-coated 10.0 5.0 15.0 10.0 10.0 5.0 10.0 — — phenyl-modified silicone rubber powder*.sup.3 Spherical polymethyl methacrylate — 5.0 — — — — — 10.0 10.0 Chlorphenesin 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Oil Dimethylpolysiloxane*.sup.4 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 components Methyl phenyl polysiloxane*.sup.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Glyceryl tri(2-ethylhexanoate) 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 Octyl methoxycinnamate 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Evaluation Impact resistance 8 10 7 10 7 5 7 9 7 Usability A B A B A D D D E

[0117] As shown in Table 1, a solid powder cosmetic obtained by blending 20 mass % of synthetic fluorphlogopite iron, 5 to 15 mass % of boron nitride, and 5-15 mass % of phenyl-modified silicone spherical elastic powder had satisfactory impact resistance, and the usability was excellent (1-1 to 1-5). On the other hand, in the cosmetic wherein synthetic fluorphlogopite iron was reduced to 10 mass % and muscovite was increased (1-6), the impact resistance was low, powdery texture was felt, and the usability was poor (comparison of Test Examples 1-1, 1-2 and 1-6). The results indicate that the blending effect of synthetic fluorphlogopite iron cannot be replaced by muscovite. As a contributory factor, higher oil absorptiveness of muscovite than that of synthetic fluorphlogopite iron is listed.

[0118] Cosmetic (1-7) wherein boron nitride was removed from formulation 1-1 had impact resistance; however, smoothness during use and lightness were not present, powdery texture was also felt, and the usability was not satisfactory. Cosmetic (1-8), wherein spherical silicone resin-coated phenyl-modified silicone rubber powder in formulation 1-1 was replaced with spherical polymethylmethacrylate, had impact resistance; however, smoothness during use and lightness were not present, and the usability was not satisfactory. Cosmetic (1-9), wherein none of synthetic fluorphlogopite iron, boron nitride, and phenyl-modified silicone spherical elastic powder were contained, had impact resistance when compared with cosmetic (1-1), which contained these three components; however, smoothness during use and lightness were hardly present, powdery texture was also felt, and the usability was very poor.

[0119] As disclosed in Example 5, the present inventors have confirmed that the effect of the present invention can be obtained by increasing the blending quantity of synthetic fluorphlogopite iron even up to 30 mass %.

[0120] Thus, it was clarified that a cosmetic excellent in both usability and impact resistance can be obtained by blending 12-30 mass % of synthetic fluorphlogopite iron to the formulation that contains 5-15 mass % of boron nitride and 5-15 mass % of phenyl-modified silicone spherical elastic powder.

Test Example 2

Blending Effect of Hydrophobized Zinc Oxide

[0121] Then, characteristic extender pigments were added and their effect was investigated.

[0122] To the formulation of the solid powder cosmetic, four kinds of zinc oxide powder, namely, zinc oxide (without surface treatment), dextrin palmitate-treated low-temperature-calcined zinc oxide (surface-treated by the method described in Patent Literature 4), octyltriethoxysilane-treated low-temperature-calcined zinc oxide, or octyltriethoxysilane-treated zinc oxide was added, and the effect to makeup lasting was investigated. As a result, it was clarified that makeup lasting was the best when dextrin palmitate-treated low-temperature-calcined zinc oxide was added. The results are shown in Table 2.

TABLE-US-00002 TABLE 2 Test Examples 2-1 2-2 2-3 2-4 2-5 2-6 Formulation Powder Branched alkyl-modified silicone 12.0 12.0 12.0 12.0 12.0 12.0 components (ethoxy-functional group)-treated talc Zinc decyl trisiloxanecarboxylate- 12.0 11.0 9.0 7.0 5.0 2.0 treated talc Dextrin palmitate-treated — 1.0 3.0 5.0 7.0 10.0 low-temperature-calcined zinc oxide Synthetic fluorphlogopite iron*.sup.1 20.0 20.0 20.0 20.0 20.0 20.0 Synthetic fluorphlogopite*.sup.6 10.0 10.0 10.0 10.0 10.0 10.0 Boron nitride*.sup.2 5.0 5.0 5.0 5.0 5.0 5.0 Silicone-treated titanium dioxide 7.0 7.0 7.0 7.0 7.0 7.0 (Pigment grade) Aluminum stearate-treated 4.0 4.0 4.0 4.0 4.0 4.0 titanium oxide (ultrafine particle grade) Silicone-treated red iron oxide 0.6 0.6 0.6 0.6 0.6 0.6 Silicone-treated yellow iron oxide 2.1 2.1 2.1 2.1 2.1 2.1 Silicone-treated black iron oxide 0.2 0.2 0.2 0.2 0.2 0.2 Spherical nylon powder*.sup.7 7.0 7.0 7.0 7.0 7.0 7.0 Spherical silicone resin-coated 7.0 7.0 7.0 7.0 7.0 7.0 phenyl-modified silicone rubber powder*.sup.3 Chlorphenesin 0.1 0.1 0.1 0.1 0.1 0.1 Oil Dimethylpolysiloxane*.sup.4 3.0 3.0 3.0 3.0 3.0 3.0 components Methyl phenyl polysiloxane*.sup.5 1.0 1.0 1.0 1.0 1.0 1.0 Glyceryl tri(2-ethylhexanoate) 4.0 4.0 4.0 4.0 4.0 4.0 Octyl methoxycinnamate 5.0 5.0 5.0 5.0 5.0 5.0 Evaluation Impact resistance A B B B D E Usability D B B A A A

[0123] From Table 2, it was clarified that makeup lasting becomes better when 0.5-6 mass % of dextrin fatty acid-treated low-temperature-calcined zinc oxide, more preferably 1-5 mass % thereof, is added to the formulation of the solid powder cosmetic of the present invention (formulation containing 12-30 mass % of synthetic fluorphlogopite iron, 5-15 mass % of boron nitride, and 5-15 mass % of phenyl-modified silicone spherical elastic powder).

Investigation of Oil Components

[0124] The present inventors further investigated the oil that is blended as the oil component. The results are shown in Table 3.

TABLE-US-00003 TABLE 3 Test Examples 3-1 3-2 3-3 3-4 3-5 Formulation Powder Branched alkyl-modified silicone 23.5 23.5 23.5 23.5 23.5 components (ethoxy-functional group)-treated talc Synthetic fluorphlogopite iron*.sup.1 20.0 20.0 20.0 20.0 20.0 Synthetic fluorphlogopite*.sup.5 10.0 10.0 10.0 10.0 10.0 Boron nitride *.sup.2 5.0 5.0 5.0 5.0 5.0 Silicone-treated titanium dioxide 7.0 7.0 7.0 7.0 7.0 (Pigment grade) Aluminum stearate-treated titanium 4.0 4.0 4.0 4.0 4.0 oxide (ultrafine particle grade) Silicone-treated red iron oxide 0.6 0.6 0.6 0.6 0.6 Silicone-treated yellow iron oxide 2.1 2.1 2.1 2.1 2.1 Silicone-treated black iron oxide 0.2 0.2 0.2 0.2 0.2 Spherical nylon powder*.sup.7 7.0 7.0 7.0 7.0 7.0 Spherical silicone resin-coated 7.0 7.0 7.0 7.0 7.0 phenyl-modified silicone rubber powder *.sup.3 Chlorphenesin 0.2 0.2 0.2 0.2 0.2 Oil Dimethylpolysiloxane*.sup.4 8.1 3.1 3.1 3.1 3.1 components Vaseline — 5.0 — — — Microcrystalline wax — — 5.0 — — Dipentaerythrityl hexaoxystearate — — — 5.0 — Stearoxymethylpolysiloxane*.sup.8 — — — — 5.0 Methyl phenyl polysiloxane 1.0 1.0 1.0 1.0 1.0 Phenoxyethanol 0.3 0.3 0.3 0.3 0.3 Glyceryl tri(2-ethylhexanoate) 4.0 4.0 4.0 4.0 4.0 Evaluation Hardness 48 44 40 45 45 Impact resistance 7 10 12 12 12 Usability A B B B A

[0125] Table 3, it was found that usability and impact resistance of the solid powder cosmetic of the present invention become better when stearoxymethylpolysiloxane is blended.

[0126] Hereinafter, the present invention will be explained by listing more examples; however, the present invention is not limited by these examples. The carboxy silicone soap-treated talc and dextrin palmitate-treated low-temperature-calcined zinc oxide, used in the below examples, were produced by the methods described in Patent Literature 3 and Patent Literature 4, respectively.

Example 2

Powdery Foundation

<Formulation>

[0127]

TABLE-US-00004 Blending quantity Component (mass %) (1) Carboxy silicone soap-treated talc balance (2) Synthetic fluorphlogopite iron*.sup.1 15.0 (3) Synthetic fluorphlogopite*.sup.6 10.0 (4) Barium sulfate 5.0 (5) Boron nitride*.sup.2 5.0 (6) Aluminum stearate-treated particulate titanium oxide 4.0 (7) Dextrin palmitate-treated low-temperature- 2.0 calcined zinc oxide (8) Silicone-treated titanium oxide 10.0 (9) Silicone-treated red iron oxide 0.2 (10) Silicone-treated yellow iron oxide 1.4 (11) Silicone-treated black iron oxide 2.0 (12) Spherical nylon powder*.sup.7 6.0 (13) Spherical silicone resin-coated phenyl-modified silicone rubber powder*.sup.3 (14) Spherical urethane powder*.sup.9 3.0 (15) Chlorphenesin 0.2 (16) Dimethylpolysiloxane*.sup.4 2.0 (17) Phenyl trimethicone 1.0 (18) Octyl methoxycinnamate 5.0 (19) Stearoxymethylpolysiloxane*.sup.8 1.0 (20) Phenoxyethanol 0.3

<Preparation Method>

[0128] The above-described powder components ((1) to (15)) and oil components ((16) to (20)), which had been melted by heating at 75 degrees, were mixed by stirring with a Henschel mixer, and a uniform mixture was obtained by subsequent grinding with a pulverizer. To the mixture, the equal amount (mass) of water was added, and a slurry was obtained by mixing with a dispersion mixer. The slurry was filled into an inner plate, the solvent was removed by suction press molding, and a powdery foundation was obtained by drying with a warm air drier.

[0129] The obtained powdery foundation was excellent in impact resistance and usability.

Example 3

Powdery Foundation

<Formulation>

[0130]

TABLE-US-00005 Blending quantity Component (mass %) (1) Carboxy silicone soap-treated talc balance (2) Synthetic fluorphlogopite iron*.sup.1 15.0 (3) Silicone-treated synthetic fluorphlogopite 10.0 (4) Glass flakes 5.0 (5) Boron nitride*.sup.2 5.0 (6) Aluminum stearate-treated particulate titanium oxide 4.0 (7) Dextrin palmitate-treated low-temperature-calcined 2.0 zinc oxide (8) Silicone-treated titanium oxide 10.0 (9) Silicone-treated red iron oxide 0.2 (10) Silicone-treated yellow iron oxide 1.4 (11) Silicone-treated black iron oxide 2.0 (12) Spherical nylon powder*.sup.7 6.0 (13) Spherical silicone resin-coated phenyl-modified silicone 8.0 rubber powder*.sup.3 (14) Spherical urethane powder*.sup.9 3.0 (15) Methylparaben 0.2 (16) Dimethylpolysiloxane*.sup.4 2.0 (17) Phenyl trimethicone 1.0 (18) Octyl methoxycinnamate 3.0 (19) Octocrylene 2.0 (20) Stearoxymethylpolysiloxane*.sup.8 1.0 (21) Phenoxyethanol 0.7

<Preparation Method>

[0131] The above-described powder components ((1) to (15)) and oil components ((16) to (21)), which had been melted by heating at 75 degrees, were mixed by stirring with a Henschel mixer, and a uniform mixture was obtained by subsequent grinding with a pulverizer. To the mixture. the equal amount (mass) of water was added, and a slurry was obtained by mixing with a dispersion mixer. The slurry was filled into an inner plate, the solvent was removed by suction press molding, and a powdery foundation was obtained by drying with a warm air drier.

[0132] The obtained powdery foundation was excellent in impact resistance and usability.

Example 4

Face Powder

<Formulation>

[0133]

TABLE-US-00006 Blending quantity Component (mass %) (1) Carboxy silicone soap-treated talc balance (2) Synthetic fluorphlogopite iron*.sup.1 20.0 (3) Silicone-treated sericite 5.0 (4) Muscovite 5.0 (5) Boron nitride*.sup.2 5.0 (6) Aluminum stearate-treated particulate titanium oxide 4.0 (7) Dextrin palmitate-treated low-temperature-calcined 2.0 zinc oxide (8) Silicone-treated titanium oxide 3.0 (9) Silicone-treated red iron oxide 0.05 (10) Silicone-treated yellow iron oxide 0.1 (11) Spherical polymethyl methacrylate 5.0 (12) Spherical nylon powder*.sup.7 6.0 (13) Spherical silicone resin-coated phenyl-modified silicone 8.0 rubber powder*.sup.3 (14) Spherical urethane powder*.sup.9 3.0 (15) Methylparaben 0.2 (16) Dimethylpolysiloxane*.sup.4 2.0 (17) Phenyl trimethicone 1.0 (18) Diisostearyl malate 1.0 (19) Cetyl ethylhexanoate 1.0 (20) Stearoxymethylpolysiloxane*.sup.8 1.0 (21) Liquid paraffin 1.0

<Preparation Method>

[0134] The above-described powder components ((1) to (15)) and oil components ((16) to (21)), which had been melted by heating at 75 degrees, were mixed by stirring with a Henschel mixer, and a uniform mixture was obtained by subsequent grinding with a pulverizer. To the mixture, the equal amount (mass) of water was added, and a slurry was obtained by mixing with a dispersion mixer, The slurry was filled into an inner plate, the solvent was removed by suction press molding, and a face powder was obtained by drying with a warm air drier.

[0135] The obtained face powder was excellent in impact resistance and usability.

Example 5

Powdery Foundation

<Formulation>

[0136]

TABLE-US-00007 Blending quantity Component (mass %) (1) Carboxy silicone soap-treated talc balance (2) Synthetic fluorphlogopite iron*.sup.1 30.0 (3) Silicone-treated barium sulfate 5.0 (4) Boron nitride*.sup.2 5.0 (5) Aluminum stearate-treated particulate titanium oxide 5.0 (6) Dextrin palmitate-treated low-temperature-calcined zinc 3.0 oxide (7) Silicone-treated titanium oxide 9.0 (8) Silicone-treated red iron oxide 0.2 (9) Silicone-treated yellow iron oxide 1.4 (10) Silicone-treated black iron oxide 2.0 (11) Spherical nylon powder*.sup.7 5.0 (12) Spherical silicone resin-coated phenyl-modified silicone 6.0 rubber powder*.sup.3 (13) Spherical urethane powder*.sup.9 3.0 (14) Chlorphenesin 0.2 (15) Dimethylpolysiloxane*.sup.4 2.0 (16) Caprylic/capric triglyceride 2.0 (17) Phenyl trimethicone 1.0 (18) Octyl methoxycinnamate 5.0 (19) Acrylates/stearyl acrylate/dimethicone methacrylate 0.7 copolymer (KP561P, manufactured by Shin-Etsu Polymer Co., Ltd.) (20) Stearoxymethylpolysiloxane*.sup.8 0.7

<Preparation Method>

[0137] The above-described powder components ((1) to (14)) and oil components ((15) to (21)), which had been melted by heating at 75 degrees, were mixed by stirring with a Henschel mixer, and a uniform mixture was obtained by subsequent grinding with a pulverizer. To the mixture, the equal amount (mass) of water was added, and a slurry was obtained by mixing with a dispersion mixer. The slurry was filled into an inner plate, the solvent was removed by suction press molding, and a powdery foundation was obtained by drying with a warm air drier.

[0138] The obtained powdery foundation was excellent in impact resistance and usability.