JP3081576B2 - 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 transparent appearance, a refreshing sensation when applied to the skin, a uniform finish, and a smooth feel and continuity of the finish. Regarding excellent cosmetics.

[0002]

2. Description of the Related Art Among liquid cosmetics containing powder, aqueous two-layer separated cosmetics such as calamine lotion are known to have a transparent appearance and to have an excellent refreshing feeling upon application. I have. However, the powder used in the two-layer separated type cosmetic has low water repellency, and does not maintain a dry feeling and finish at the time of application. On the other hand, when powder having high water repellency is used, although the persistence of the finish can be obtained, it is not easy to disperse it in cosmetics, and in order to obtain a good dispersion state, a large amount of alcohol is used, Coagulants of water-soluble salts such as sodium chloride, calcium chloride, and magnesium chloride (see JP-A-61-60606), cationic surfactants, nonionic surfactants, anionic surfactants, and polymer substances. Or a thickener represented by a carboxyvinyl polymer or the like. However, the use of a large amount of alcohol or a surfactant causes skin irritation, and the addition of a thickener or a dispersant causes a sticky feeling or a slimy feeling, which has a problem of impairing a refreshing feeling of use. .

[0003] On the other hand, in gel-like cosmetics, powders are compounded for the purpose of enhancing the feeling of use and making skin defects inconspicuous. Then, the appearance of the cosmetic becomes cloudy and lacks in transparency, and there is a defect that the transparent and fresh appearance required for the gel cosmetic is impaired.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a transparent appearance, a refreshing feeling when applied to the skin, a uniform finish, and a smooth feeling. An object of the present invention is to provide cosmetics having excellent finish continuity.

[0005]

In view of such circumstances, the present inventors have conducted intensive studies. As a result, the use of easily disintegrable granules containing a water-repellent powder does not impair the transparency of the appearance. It can be blended into cosmetics, and has a refreshing refreshing feeling because the granules collapse on application and adhere to the skin,
The finish is uniform and the use of water-repellent powder ensures that cosmetics with excellent dryness and long lasting finish can be obtained without discoloration or stickiness. The present invention has been completed.

That is, the present invention provides a cosmetic containing a water-repellent powder-containing granule having a compressive strength of 0.1 kgf / mm ² or less in the cosmetic.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The granules used in the present invention contain a water-repellent powder, and any inorganic or organic powder may be used as the base powder to be water-repellent. be able to. Such powders include, for example, talc, mica,
Sericite, kaolin, bentonite, vermiculite, hectorite, zeolite, silica, alumina, heidilite, aluminum silicate, magnesium silicate, calcium silicate, aluminum magnesium silicate, magnesium carbonate, calcium carbonate, barium sulfate, hydroxyapatite, Boron nitride, fluorocarbon,
Inorganic pigments such as barium sulfate-treated mica; polymer powders such as nylon powder, polymethyl methacrylate powder, polyethylene powder, polystyrene powder, benzoguanamine powder, fluororesin powder, polymethylsilsesquioxane powder; zirconium oxide-coated nylon powder, oxidation Organic-inorganic composite powder such as titanium-coated nylon powder; spherical polymethyl methacrylate-mica composite powder, spherical polymethyl methacrylate-sericite composite powder, spherical polymethyl methacrylate-talc composite powder, spherical silica
Spherical-plate-like powder composite pigments such as mica composite powder; inorganic white pigments such as titanium dioxide, zinc oxide, and zirconium oxide; inorganic red pigments such as iron oxide (iron oxide), iron titanate, and calamine; Inorganic brown pigments such as iron oxide; inorganic yellow pigments such as yellow iron oxide and loess; inorganic black pigments such as black iron oxide, carbon black and low titanium oxide; inorganic purple pigments such as manganese violet and cobalt violet. Inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; inorganic blue pigments such as ultramarine and navy blue; titanium oxide coated mica, bismuth oxychloride, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, coloring Pearl pigments such as titanium oxide coated mica and fish scale foil; metal powder pigments such as aluminum powder and copper powder Cellulose, organic extender pigments silk and the like; zinc stearate metal soap; red 201
No., Red No. 202, Red No. 203, Red No. 204, Red No. 205, Red No. 213, Red No. 219, Red No. 220
No. Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205, Yellow 401
No., Blue No. 404, Red No. 3, Red No. 104, Red No. 10
No. 6, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, Blue No. 1, etc. Lake pigments such as zirconium, barium or aluminum; natural pigments such as chlorophyll and β-carotene; and ultraviolet protective powders such as fine particle titanium oxide, fine particle zinc oxide, flaky zinc oxide, fine particle zirconium oxide, and fine particle cerium oxide. And one or more of these can be used in combination.

Although the average particle size of the mother powder is not particularly limited,
Those having a thickness of 0.1 to 100 μm, particularly 0.1 to 50 μm are preferable from the viewpoint of feeling of use.

The water repellency treatment of the mother powder can be performed according to a usual method, and examples of the water repellency treatment agent include a fluorine compound, silicone oil, lecithin and the like.

As the fluorine compound used for the water repellent treatment, for example,

[0011]

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Perfluoroalkylphosphoric acid (US Pat. No. 3,632,744) and fluoroalkyldi (oxyethyl) amine phosphoric acid ester
No. 250074), a resin having a perfluoroalkyl group (Japanese Patent Application Laid-Open No. 55-167209), an ethylene tetrafluoride resin, a perfluoroalcohol, a perfluoroepoxy compound, a sulfoamide-type fluorophosphoric acid, a perfluorosulfate, Fluorocarboxylate, perfluoroalkylsilane (JP-A-2-218603)
And the like.

Examples of the silicone oil include dimethylpolysiloxane, cyclic dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, cyclic methylhydrogenpolysiloxane, methylpolysiloxane emulsion, polyether-modified silicone, alkyl-modified silicone, Examples include higher fatty acid ester-modified silicone, higher alkoxy-modified silicone, phenol-modified silicone, higher fatty acid-modified silicone, and the like.

As lecithin, for example, egg yolk lecithin,
Soy lecithin and the like.

Of these, treatment with a fluorine compound is preferred because water and oil repellency can be imparted to the powder, and treatment with a perfluoroalkyl phosphoric acid is particularly preferred.

The treatment amount of the water-repellent treating agent to the powder is preferably 1 to 20% by weight, more preferably 2 to 10% by weight.
It is. Within this range, sufficient water repellency and good feeling in use can be obtained, which is preferable.

The granulated product used in the present invention may contain other inorganic or organic powders in addition to the above-mentioned water-repellent powder. Examples of such a powder include those similar to the base powder of the water-repellent powder.

[0018] The content of the water-repellent powder in the granulated product is not particularly limited, but is preferably 50% by weight or more, since the makeup lasting time is excellent.

The granules containing the water-repellent treated powder used in the present invention have a compressive strength of 0.1 kgf / mm ² or less in cosmetics. To 0.02 kgf / mm ² or less.

The average particle size of the granulated product is 50 μm or more and less than 500 μm, particularly 50 μm or more and 300 μm or less, and more preferably 100 μm or more and 200 μm or less, from the viewpoint of sufficiently imparting a refreshing refreshing feeling and preventing discomfort during coating. Is preferred.

The method for granulating the water-repellent treated powder-containing granulated material is not particularly limited as long as the above-mentioned compressive strength and particle size can be obtained, but the stirring granulation method, the flow granulation method, the extrusion granulation, and the like. And the like. In the case of granulation, it is preferable to perform granulation using a commonly used binder such as hydroxypropylcellulose (HPC) and carboxymethylcellulose (CMC).

The amount of the granulated material in the cosmetic composition is preferably 1 to 30% by weight, particularly 2 to 15% by weight in the total composition, since an appropriate finished feeling can be obtained.

Furthermore, it is preferable to mix water and ethanol with the cosmetic of the present invention. The mixing ratio of water and ethanol is 99/1 to 50/50 by weight, especially 95/5.
~ 80/20 is preferred.

The cosmetic of the present invention contains, in addition to the above components, components used in ordinary cosmetics, such as oils, surfactants, high molecular compounds, humectants, preservatives, drugs, and ultraviolet absorbers. It can be appropriately compounded within a range that does not impair the effects of the invention.

Examples of the oils include vegetable oils such as avocado oil, olive oil and jojoba oil; fatty acids such as oleic acid and isostearic acid; alcohols such as hexadecyl alcohol and oleyl alcohol; cetyl 2-ethylhexanoate and palmitic acid. 2-ethylhexyl, 2-octyldodecyl myristate, neopentyl glycol di-2-ethylhexanoate, glycerol tri-2-ethylhexanoate, 2-octyldodecyl oleate, isopropyl myristate, glycerol triisostearate, 2 Esters such as -ethylhexanoic acid diglyceride, di-paramethoxycinnamic acid-mono-2-ethylhexanoic acid glyceryl; dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, octa Silicone oils such as tylcyclotetrasiloxane; fluorinated oils such as perfluoroalkyl ether; liquid hydrocarbon oils such as liquid paraffin, squalene and squalane; Fats or semi-solid oils.

Examples of the surfactant include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene cured. Nonionic surfactants such as castor oil and polyoxyethylene sorbitol fatty acid ester; anionic surfactants represented by fatty acid soaps such as sodium stearate and triethanolamine palmitate; and cationic surfactants and amphoteric Surfactants and the like.

Examples of the water-soluble polymer include carboxymethylcellulose, methylcellulose, hydroxymethylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, trangant gum, carrageenan, locust bean gum, dextrin, dextrin fatty acid ester, carboxyvinyl polymer, xanthan gum, gelatin, Sodium alginate, gum arabic and the like.

As humectants, for example, sorbitol,
Xylitol, glycerin, maltitol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, sodium pyrrolidonecarboxylate,
Lactic acid, sodium lactate, polyethylene glycol and the like can be mentioned.

Examples of the preservative include alkyl paraoxybenzoate, sodium benzoate, potassium sorbate and the like.

Examples of the drug include vitamins, crude drugs, anti-inflammatory agents, bactericides and the like.

Examples of the ultraviolet absorber include a paraaminobenzoic acid ultraviolet absorber, an anthranil ultraviolet absorber, a salicylic acid ultraviolet absorber, a cinnamic acid ultraviolet absorber, and a benzophenone ultraviolet absorber.

The cosmetic of the present invention can be produced according to a usual method, and can be in various forms, for example, lotion, emulsion, gel, cream and the like.

[0033]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. In the following examples, the compressive strength of the granulated product was measured using a micro compression tester (MCTM-50 manufactured by Shimadzu Corporation).
0).

Example 1 A two-layer separation type foundation having the composition shown in Tables 2 and 3 was prepared by a conventional method, and its use feeling, finish, makeup persistence, dispersibility during stirring, transparency of appearance, and caking were measured. It was evaluated by the following method.

(1) Feeling of Use The feeling of use (smoothness, roughness) when a two-layer separation type foundation was applied to the face was evaluated by a specialized panelist according to the following criteria. (Smooth feeling) A: Very smooth feeling. ：: There is a smooth feeling. Δ: There is not much smooth feeling. X: There is no smooth feeling at all. (Roughness) ：: No roughness at all. ：: There is some roughness at the beginning, but it disappears immediately. Δ: There is roughness. ×: There is roughness, and the grains do not collapse.

(2) Finish The finish (no unevenness) when the two-layer separation type foundation was applied to the face was evaluated by a specialized panelist according to the following criteria. (No unevenness) ：: Uniform and no unevenness. ：: Almost no unevenness. Δ: Somewhat uneven. X: It becomes uneven.

(3) Makeup Persistence A makeup panel (tekari, sticky) 4 hours after the two-layer separation type foundation was applied to the face was evaluated by a specialized panelist according to the following criteria. (Sticky) ：: Not sticky at all. There is a feeling of smoothness. ：: Not sticky. There is a slight feeling of dryness. Δ: Somewhat sticky. X: Very sticky. (Terikari) ：: There is no luminosity. ：: There is almost no flash. Δ: There is a little light. ×: Very bad.

(4) Dispersibility at the time of stirring A two-layer separation type foundation was placed in a transparent glass bottle (diameter 4c).
m, height 11.5cm), fill 10g and leave it all day and night,
When the powder and the liquid were vibrated with a vibration width of 30 cm by hand, the dispersibility during stirring was evaluated according to the following criteria by the number of vibrations until the powder and liquid were uniformly dispersed.

[0039]

[Table 1]

(5) Transparency of appearance The two-layer separation type foundation is filled in a transparent glass bottle similar to that used in (4), and the glass bottle is sufficiently vibrated by hand to uniformly disperse the solid layer and the liquid layer. After allowing the mixture to stand for 1 hour, a solid layer and a liquid layer were separated. Stain, transparency and clarity at the separated solid and liquid layers and at the interface between the solid and liquid layers were observed, and the transparency of the appearance was evaluated. The criterion was evaluated as ○ when the liquid layer was substantially transparent and excellent in clarity without contamination at the interface, and as X when the liquid layer was opaque or dirty at the interface and poor in clarity.

(6) Caking A transparent glass bottle similar to that used in the two-layer separation type foundation (4) is filled, and the glass bottle is sufficiently vibrated by hand to disperse the solid layer and the liquid layer uniformly. When allowed to stand for a week and vibrated by hand with a vibration width of 30 cm, the number of vibrations until uniform dispersion was compared with the result of (4) and judged as follows. A: Almost the same as the result of (4). ：: Slightly inferior to (4). Δ: considerably lower than (4). ×: Not dispersed.

[0042]

[Table 2]

[0043]

[Table 3]

Example 2 A gel foundation having the composition shown in Table 4 was produced by a conventional method, and its use feeling (smooth feeling) and long-lasting makeup (stickiness, shine) were evaluated in the same manner as in Example 1. The transparency of the appearance was determined as follows. (Judgment criteria) A: There is no turbidity and there is a transparent feeling. ：: Translucent with almost no turbidity. Δ: Cloudy. X: Cloudy.

[0045]

[Table 4]

Example 3 A gel eye shadow having the composition shown in Table 5 was produced by a conventional method, and its use feeling (smoothness) and long-lasting makeup (stickiness, shine) were the same as in Example 1. Was evaluated in the same manner as in Example 2.

[0047]

[Table 5]

[0048]

EFFECT OF THE INVENTION The cosmetic of the present invention has a transparent appearance, has a refreshing refreshing feeling when applied to the skin and a good feeling of use, has a uniform finish, and has a smooth feeling and finish. It has excellent sustainability.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61K 7/00 A61K 7/02 A61K 7/032 A61K 7/035

Claims (5)

(57) [Claims] 1. The composition has a compressive strength of 0.1 kgf / mm ^{2 in} cosmetics.
A cosmetic containing the following water-repellent treated powder-containing granules. 2. The cosmetic according to claim 1, wherein the water-repellent powder is a water- and oil-repellent powder obtained by a fluorine compound treatment. 3. The cosmetic according to claim 1, wherein the amount of the water-repellent powder in the granulated material is 50% by weight or more. 4. The granulated product has an average particle size of 50 μm or more and 500 or more.
The cosmetic according to any one of claims 1 to 3, which has a particle size of less than μm. 5. Further, water and ethanol are mixed in a weight ratio of 99.
The cosmetic according to any one of claims 1 to 4, wherein the cosmetic comprises: