JPH1095710A - Powdery solid cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a powdery solid cosmetic readily applicable to skin by a powder puff, having a moist touch and excellent impact resistance, by blending essential components comprising amino acid powder, an oil component and a powdery excipient in a specific ratio. SOLUTION: This powdery solid cosmetic comprises 1.0-5.0wt.% of amino acid powder, 2.0-9.0wt.% of an oil component and 0.5-10.0wt.% of a powdery excipient. The content of the oil component is especially preferably 2.0-7.0wt.%. When the content of the oil component exceeds 9.0wt.%, caking of a powder puff is caused. When the content is smaller than 2.0wt.%, moistness in application to skin is deficient and impact resistance is inferior. The ratio of a dimethylpolysiloxane in the whole oil component is preferably >=70.0wt.%. A dimethylpolysiloxane having 5-20cs viscosity is proper. For example, an avocado oil, camellia oil, liquid paraffin, vaseline, etc., may be used as other oil components. C11 H23 CONH(CH2 )4 CH(<+> NH3 )HCOO<-> , etc., may be cited as the amino acid powder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdered solid cosmetic suitable for use in puffs. Here, the puff refers to a tool whose surface used for applying white powder, blush, etc. is covered with hair.

[0002]

2. Description of the Related Art Most of conventional solid powder cosmetics have an oil content of about 10 to 25% by weight. However, there is a problem that the soft feeling cannot be obtained evenly. For this reason, a sponge had to be used, and it was difficult to use it in a puff. There are also powdered solid cosmetics having an oil content of less than 10% by weight, but they can be used in puffs, but have drawbacks such as bulky skin after application and poor impact resistance.

[0003]

SUMMARY OF THE INVENTION In view of such circumstances, the present inventors have conducted intensive studies to develop a powdered solid cosmetic which is easy to apply to the skin with a puff, and which has a moist feel and good impact resistance. As a result, the present invention has been completed.

That is, the present invention relates to amino acid powders 1.
A powdered solid cosmetic comprising 0 to 5.0% by weight, an oil content of 2.0 to 9.0% by weight, and a powder excipient of 0.5 to 10.0% by weight. .

Hereinafter, the configuration of the present invention will be described in detail. The compounding amount of the oil component used in the present invention is 2.0 to 9.0% by weight, and preferably 2.0 to 7.0% by weight. If the oil content is more than 9.0% by weight, puff caking occurs, and if it is less than 2.0% by weight, it lacks moistness when applied to the skin and has poor impact resistance. Further, the proportion of dimethylpolysiloxane in the total oil is preferably at least 70.0% by weight. If the proportion of dimethylpolysiloxane is less than 70.0% by weight, the puff may cake and may not evenly adhere to the skin. The viscosity of dimethylpolysiloxane is suitably 5 to 20 cs.

Other oils used in the present invention are not particularly limited as long as they are generally used in cosmetics and have high skin safety. For example, avocado oil, camellia oil, turtle oil, macadamia nut, corn oil , Mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran Liquid oils such as oil, cinnamon oil, sunflower oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, glycerin triisopalmitate,
Cocoa butter, coconut oil, horse fat, hardened coconut oil, palm oil, tallow, sheep butter, hardened tallow, palm kernel oil, lard, beef bone fat, mokuro kernel oil, hardened oil, beef tallow, mokuro, hardened castor Solid oils such as oil, beeswax, candelilla wax, cotton wax, carnauba wax, beberry wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, capocrow, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin ,
Jojoba wax, hard lanolin shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, etc., or liquid paraffin, ozokerite, squalene, prison, paraffin, ceresin, squalene And hydrocarbon oils such as petrolatum, microcrystalline wax and the like.

[0007] Examples of amino acid powder used in the present _{invention, C 11 H 23 CONH (CH} 2) 4 CH (+ NH 3)
HCOO ^- (Amihopu LL (Ajinomoto Co., Ltd. trade name)), and the like. The amount of the amino acid powder is 1.0 to 5.
0% by weight, preferably 2.0 to 4.0% by weight.
4. If less than 1.0% by weight, no moistness is obtained and
If the amount is more than 0% by weight, the spread becomes heavy and a smooth feel cannot be obtained.

The powder excipient used in the present invention includes:
Zinc myristate, and metal soaps such as magnesium stearate, synthetic wax (synthetic saturated hydrocarbon wax press aid (C ₄₈ H _98; Presperse trade name)) and the like 1
Seeds or two or more kinds are used. Among these powder excipients, synthetic waxes are particularly preferred. The use amount of these powder excipients is 0.5 to 10.0% by weight, preferably 2.0 to 5.0% by weight. If the amount of the powder excipient exceeds 10.0% by weight, the elongation becomes undesirably high.

In the present invention, in addition to the above essential components,
Pigments, surfactants, moisturizers, lower alcohols, and preservatives as components that modify the powder solid cosmetic, which are usually incorporated as a base into the powder solid cosmetic, as components of the powder solid cosmetic, Needless to say, a fragrance, a chelating agent, an antioxidant, an ultraviolet absorber, a gelling agent, a thickener and the like can be added.

Among the pigments, examples of inorganic pigments include talc, kaolin, calcium carbonate, zinc white, titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine, titanium coated mica, bismuth oxychloride, Bengala, caking pigment, gunjo pink, chromium hydroxide, mica titanium,
Examples thereof include chromium oxide, aluminum cobalt oxide, navy blue, carbon black, silicic anhydride, magnesium silicate, bentonite, mica, zirconium oxide, and magnesium oxide.

Examples of the organic pigment include powders of polyethylene, polypropylene, nylon, methyl methacrylate polymer, polystyrene, polystyrene polyacrylic acid copolymer, vinyl chloride polymer, tetrafluoroethylene polymer and the like, cellulose powder, chitin powder, chitosan powder. , Fish scale foil, laked tar dye, and the like.

Further, these pigments which have been subjected to a surface treatment such as a hydrophobic treatment can also be applied. For example, high-viscosity silicone oil treatment, silicone resin treatment reacted with alkyl hydrogen polysiloxane, or those obtained by alkene treatment, cationic activator treatment, anion activator treatment, nonionic activator treatment, wax treatment, dextrin fatty acid treatment , Fluorine treatment and the like.

[0013]

Next, the present invention will be described in more detail with reference to examples. The present invention is not limited to these examples. The compounding amount is% by weight. Prior to the examples, an evaluation method will be described.

(1) Evaluation of usability Ten specialized panels applied samples to the face (3
Use), and the usability was evaluated on a five-point scale as shown in Table 1 below, and the average value was used to display the following evaluation results.

[0015]

[Table 1] ───────────────────────────────── Evaluation item Moistness Noby lightness Puff caking ── １ 1 Slightly heavy 2 Slightly heavy Slightly heavy 3 Normal Normal Normal 4 Somewhat Moist slightly light hardly 5 Moist light not hard ─────────────────────────────────

Display of evaluation results 結果: 4.5 or more ：: 3.5 or more and less than 4.5 Δ: 2.5 or more and less than 3.5 ×: 1.5 or more, less than 2.5 XX: 1 Less than .5

(2) Evaluation of Impact Resistance After the samples of Examples and Comparative Examples were molded into a middle plate, they were set in a container, and 10 pieces were dropped on a steel plate upside down from a height of 70 cm to determine the number of pieces to be broken. It was measured. The following evaluation results were displayed by the number.

◎: No destruction number 0 ○: Destruction number 1 or 2 △: Destruction number 2 to 5 ×: Destruction number 5 to 7 XX: Destruction number 8 or more

Example 1, Comparative Examples 1-4 Powdery foundations were prepared according to the formulations shown in Table 2 by the method described below.

[0020]

[Table 2] 例 Example Comparative example ─────── １ 1 1 2 3 4 ───────────────────────────────── ── (1) Titanium oxide 10.0 10.0 10.0 10.0 10.0 (2) Talc 52.9 55.9 54.9 49.1 61.8 (3) Muscovite 5.0 5.0 5.0 5.0 5.0 (4) Sericite 10.0 10.0 10.0 10.0 10.0 10.0 (5) Red iron oxide 0.5 0.5 0.5 0.5 0.5 (6) Yellow iron oxide 2.0 2.0 2.0 2.0 2.0 (7) Black iron oxide 0.1 0.1 0.1 0.1 0.1 (8) Spherical powder 5.0 5.0 5.0 5.0 5.0 (9) Press aid 4.0 4.0 4.0 11.0 0.1 (10) Amino acid powder 3.0 − 6.0 3.0 3.0 (11) Liquid paraffin 1.0 1.0 2.0 2.0 2.0 (12) Dimethyl polysiloxane (10cs) 6.0 6.0 − − − (13) Sorhitan sesquiisostearate 0.2 0.2 0.2 0.2 0.2 (14) Ethyl paraben 0.2 0.2 0.2 0.2 0.2 (15) Fragrance 0.1 0.1 0.1 0.1 0.1 ────── Moisturizing ○ △ ◎ ○ ○ Lightness of spreading ◎ ◎ ◎ × ◎ Puff caking ◎ ◎ ◎ ◎ ◎ 衝 撃 Impact resistance ○ ○ △ ◎ × ───── ──────────────────────────────

(Preparation method) (1) to (10) were mixed with a Henschel mixer, and a mixture of (11) to (15) was added thereto, mixed and pulverized. I got a show. As is clear from Table 2, the powder solid cosmetics according to the present invention are superior to the comparative examples.

Example 2, Comparative Examples 5 to 7 Powdery foundations were prepared according to the formulations shown in Table 3 by the method described below.

[0023]

[Table 3] 例 Example Comparative example ──── ─── ──────── 2 5 6 7 ─────────────────────────────────── (1) Titanium oxide 10.0 10.0 10.0 10.0 (2) Talc 44.2 49.2 58.7 47.1 (3) Muscovite 5.0 5.0 5.0 5.0 (4) Sericite 10.0 10.0 10.0 10.0 (5) Red iron oxide 0.5 0.5 0.5 0.5 (6) Yellow iron oxide 2.0 2.0 2.0 2.0 (7) Black iron oxide 0.1 0.1 0.1 0.1 (8) Spherical powder 5.0 5.0 5.0 5.0 (9) Press aid 5.0 4.0 4.0 11.0 (10) Amino acid powder 2.0 3.0 3.0 3.0 (11) Liquid paraffin 1.0 1.0 0.5 5.0 (12) ) Dimethyl polysiloxane (10cs) 5.0 10.0 1.0 1.0 (13) Sorbitan sesquiisostearate 0.2 0.2 0.2 0.2 (14) Ethyl paraben 0.2 0.2 0.2 0.2 (15) Fragrance 0.1 0.1 0.1 0.1 ─────────── ─────────────────── Moist ◎ ◎ × △ Lightness of spreading ◎ △ ◎ ◎ Puff caking ◎ × ◎ × ────────────────────────衝 撃 Impact resistance ◎ ◎ × ◎ ──────────────────────────────── ───

(Preparation method) (1) to (10) were mixed with a Henschel mixer, and a mixture of (11) to (15) was added thereto, mixed, and pulverized. I got a show. As is clear from Table 3, the powder solid cosmetics according to the present invention are superior to the comparative examples.

Examples 5 to 7 Powdery foundations were prepared according to the formulations shown in Table 4 by the method described below.

[0026]

Table 4 Example 5 Example 6 Example 7 ─────────────────────────────── (1) Siliconized titanium oxide 10.0 10.0 10.0 (2) Siliconized talc 48.9 48.89 48.9 (3) Silicone treated muscovite 5.0 5.0 5.0 (4) Silicone treated sericite 10.0 10.0 10.0 (5) Silicone treated red iron oxide 0.5 0.5 0.5 (6) Silicone treated yellow iron oxide 2.0 2.0 2.0 (7) Silicone treated black iron oxide 0.1 0.1 0.1 (8) Siliconized spherical powder 5.0 5.0 5.0 (9) Pres-aid 5.0 5.0 5.0 (10) Amino acid powder 5.0 5.0 5.0 (11) Liquid paraffin 0.5 2.0 0.5 (12) Dimethyl polysiloxane (7000cs) 1.0 6.0 3.0 ( 13) Dimethyl polysiloxane (10cs) 6.0 − 4.0 (14) Celesin wax 0.5 0.01 0.5 (15) Sorbitan sesquiisostearate 0.2 0.2 0 .2 (16) Ethyl paraben 0.2 0.2 0.2 (17) Fragrance 0.1 0.1 0.1 ───────────────────────────────── ─ Moist ◎ ◎ ◎ Lightness of spread ○ △ △ Puff caking ○ × △ ───────────────────────────────衝 撃 Impact resistance ◎ ◎ ○ ──────────────────────────────────

(Production method) A foundation was obtained by the same production method as that for obtaining the foundation shown in Table 2.

[0028]

As described above, the powdery solid cosmetic of the present invention does not cake even when used with puffs, is suitable for use with puffs, and has excellent spreadability and moist feeling when applied. Also, the impact resistance is good.

Claims (4)

[Claims] 1. An amino acid powder of 1.0 to 5.0% by weight, an oil content of 2.0 to 9.0% by weight, and a powder excipient of 0.5.
A powdered solid cosmetic, characterized in that it contains -10.0% by weight. 2. The powdery solid cosmetic according to claim 1, wherein the oil content is 2.0 to 7.0% by weight. 3. A dimethylpolysiloxane containing 7% of the total oil content.
The powder solid cosmetic according to claim 2, which is at least 0.0% by weight. 4. A dimethylpolysiloxane having a viscosity of 5 to 2
The powdery solid cosmetic according to claim 3, which is 0 cs.