JPH08319216A - Solid non-aqueous powder cosmetic - Google Patents

Abstract

PURPOSE: To obtain the subject cosmetic prevented from developing spotted detachment and unfavorable appearance with time due to sebum secretion, having use feeling with refreshingness and dampishness, by incorporating hydrophobic powder with a silicone-based surfactant and a specific hydrocarbon. CONSTITUTION: This cosmetic is obtained by incorporating a combination of pref. 30.0-94.0wt.% of hydrophobic powder and pref. 0.1-20.0wt.% of a silicone- based surfactant with pref. 1.0-50.0wt.% of a low-boiling isoparaffin-based hydrocarbon 210-350 deg.C in boiling point whose vaporization rate due to contact with body temp. skin and air is close to sebum developing rate. The silicone-based surfactant is a polyether-modified silicone of the formula ((y+z) is 1-2000; (a) is 1-100; (b) is 0-100; R is H, an alkyl or COCH3 ). The hydrophobic powder is prepared by hydrophobicizing e.g. polyamide resin powder, polyethylene powder, silicon powder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid non-aqueous powder cosmetic, and more particularly, to an initial state by preventing makeup deterioration, in particular, a tore due to moisture such as sweat and a tore and shine due to sebum. The present invention relates to a solid non-aqueous powder cosmetic having a long-lasting effect and a refreshing and moisturizing feeling.

[0002]

2. Description of the Related Art Deterioration of makeup is caused by moisture such as sweat during sports or in the summer, and by sebum that can occur all year round under the environment of modern society kept at high temperature (20 to 25 degrees Celsius). Two minutes. Regarding the training due to moisture such as sweat, tears, rain, etc., it was considerably improved by using hydrophobic powder,
It is not yet satisfactory in solid powder cosmetics. In addition, almost no countermeasures have been taken for the training of cosmetic ingredients and the shininess of the face due to the secretion of sebum.

With regard to trays due to moisture, it is important to improve the adhesion of the hydrophobic powder to the skin because the solid powder cosmetic has a small amount of oil content. On the other hand, secular secretion due to the secretion of sebum and facial shine are the total amount of oil present in the cosmetic film, that is, the sum of the amount of oil in the applied cosmetic and the amount of secreted sebum is the constant oil absorption of the powder contained in the cosmetic. It is presumed that this will occur when the temperature exceeds. This phenomenon is remarkable in the nose and forehead where sebum is secreted. Therefore, makeup deterioration due to sebum is easily affected by the potential oil absorption amount and the oil content of the cosmetic, and in particular, a cosmetic or an emulsified cosmetic in which solid oil or semi-solid oil such as wax, vaseline and wax is blended. Then face shininess is likely to occur. If volatile oil is used, the oil will volatilize after application and the potential oil absorption can be increased, and it is thought that it is possible to prevent training due to sebum, but if the volatilization rate is too fast, it will be powdery or taut after application. In addition to the problem of the feeling of use, the burden on the cosmetics manufacturing process and the product container was large, which was not preferable.

[0004]

In recent years, in order to improve the above-mentioned problems, and prevent the seizure due to sebum and the shininess of the face, the specific molecular weight and the sebum generation rate are close to each other Techniques for blending sustained-release silicones have been developed (JP-A-4-117315, JP-A-4-117316, and JP-A-4-187611).
JP-A-4-187612, JP-A-4-3
05510, JP-A-4-305511).
However, in solid non-aqueous powder cosmetics containing a large amount of hydrophobic powder, the addition of a specific sustained-release silicone having a larger molecular weight causes the powder to be spread more and the feeling of use to deteriorate. There was a drawback. For this reason, it has been the actual situation that no satisfactory technique has been found as a method for preventing makeup deterioration when a solid non-aqueous powder cosmetic is used.

The present invention has been made in view of the above circumstances, and an object thereof is to maintain the initial state by preventing makeup deterioration, especially due to moisture such as sweat and aging due to sebum, and facial shine, and to maintain the initial state. Another object of the present invention is to provide a solid non-aqueous powder cosmetic having a moisturizing feel.

[0006]

Means for Solving the Problems As a result of intensive studies to solve the above-mentioned conventional problems, the present inventors have found that by adding a silicone-based surfactant to the hydrophobic powder, the skin of the hydrophobic powder can be improved. The adhesion to the skin is improved, and the training due to moisture such as sweat can be prevented, and at the same time, when the water is added to the skin, the viscosity of the silicone-based surfactant is increased, and the adhesion to the skin is further enhanced. Furthermore, by adding a specific low-boiling point isoparaffinic hydrocarbon whose volatilization rate due to skin temperature and contact with air is close to the sebum generation rate, the secular secretion of sebum is prevented from over-exercising, resulting in a refreshing and moisturizing feeling. The present invention has been completed and the present invention has been completed.

That is, the present invention is a solid non-aqueous powder cosmetic composition containing a low boiling point isoparaffin hydrocarbon, a silicone surfactant and a hydrophobic powder.

The low-boiling isoparaffinic hydrocarbon used in the present invention is generally used in cosmetics,
Boiling point due to skin persistence (volatilization rate) and skin irritation
It is desirable that the (bp) is 210 to 350 ° C. For example,
Isopar (registered trademark) M (bp204 to 260 ° C), cosmetic grade 585LCL (225 to 255 ° C) (Exxon), Isozole (registered trademark) 400 (204 to 260 ° C)
(Nippon Petroleum), Pearlream (registered trademark) 6 (320 to 335)
℃), Pearlream EX (300-315 ℃) (NOF Corporation),
Tetraisobutane 90 (210-250 ° C) (Bayer),
Permethyl (registered trademark) 101A (210 to 250 ° C.), 10
2A (275 ° C.) (Press Perth Co.).

The amount of low-boiling isoparaffin hydrocarbon is 1.0 to 50.0% by weight, preferably 10.0.
~ 30.0% by weight. If the compounding amount exceeds 50.0% by weight, caking occurs, which is not preferable.
If the blending amount is less than 1.0% by weight, the volatile oil content is small and the oil absorption is insufficient, resulting in shininess.

The silicone-based surfactant used in the present invention is preferably a polyether-modified silicone represented by the following general formula (1).

[0011]

Embedded image

(In the formula, y + z = 1 to 20000, a = 1
˜100, b = 0 to 100, R represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or a group represented by the formula —COCH ₃ . )

The amount of the silicone-based surfactant compounded is 0.1.
% To 20.0% by weight, preferably 0.1 to 10.0
% By weight. If it is less than 0.1% by weight, the adhesion of the hydrophobic powder to the skin will be poor, and the training will increase. If the blending amount is large, the training amount is small, but if it exceeds 20.0% by weight, irritation to the skin becomes large and there is a safety problem.

The hydrophobic powder used in the present invention includes not only hydrophobic powder itself, but also hydrophobic powder such as hydrophilic powder whose surface is hydrophobized.

Specific examples of the hydrophobic powder include polyamide resin powder (nylon powder), polyethylene powder,
Organic powder such as polymethylmethacrylate powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, and silicon such as trimethylsilsesquioxane powder. A powder etc. are illustrated.

Examples of the powder component of the hydrophobized powder include talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, phlogopite, biotite, lithia mica, permiculite, magnesium carbonate, Calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, tungstate metal salt, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calculated gypsum), calcium phosphate, fluoroapatite, Hydroxyapatite, ceramic powder, metallic soap (zinc myristate, calcium palmitate, aluminum stearate, etc.), inorganic powder such as boron nitride; inorganic white pigment such as titanium dioxide, zinc oxide; iron oxide (red iron oxide), iron titanate Nothing Red pigment; .gamma. inorganic brown pigments such as iron oxide; yellow iron oxide, inorganic yellow pigments loess and the like;
Inorganic black pigments such as black iron oxide, carbon black and low-order titanium oxide; inorganic purple pigments such as mango violet and balt violet; inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate; ultramarine blue and navy blue. Inorganic blue pigments such as; Titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, pearl pigments such as scale foil; metal powders such as aluminum powder and copper powder Pigment, etc .; red 201
No. 202, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 228, Red No. 405
No. 203, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401 or Blue No. 404 and other organic pigments; Red No. 3,
Red No. 104, Red No. 106, Red No. 227, Red No. 23
Organic pigments such as No. 0, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3 or Blue No. 1 such as zirconium, barium or aluminum lake; Examples include natural pigments such as chlorophyll and β-carotene. In the present invention, those obtained by hydrophobizing these powder components are used.

The hydrophobic treatment method may be any method as long as it can impart water repellency, and the method is not limited, and examples thereof include a gas phase method, a liquid phase method, an autoclave method,
A usual surface treatment method such as a mechanochemical method can be used.

For example, when a hydrophobizing agent is added to the raw material powder for treatment, it may be added after diluting it with an appropriate solvent (dichloromethane, chloroform, hexane, ethanol, xylene, volatile silicone, etc.), or You may add directly. A ball mill, a hogersite ball mill, a vibrating ball mill, an attritor, a pot mill, a rod mill, a pan mill, a homomixer, a homodisper, a Henschel mixer, a Nauta mixer and the like can also be used for mixing and stirring the powder and the treating agent. In addition to this, a method of polymerizing a cyclic organosiloxane on the surface of a powder at a low temperature of 100 ° C. or lower by a gas phase reaction utilizing the activity of the surface of the powder (Japanese Patent Publication No. 1-54380), or a surface after the above method The method of adding a pendant group such as glycerol monoallyl ether to the Si-H portion of the silicone polymer (Japanese Patent Publication No. 1-54381) can be used.

The hydrophobizing agent is not particularly limited, but fatty acid dextrin-treated powder, trimethylsiloxysilicic acid-treated powder, fluorine-modified trimethylsiloxysilicic acid-treated powder, methylphenylsiloxysilicic acid-treated powder, fluorine-modified methylphenylsiloxy. Silicic acid treated powder,
Dimethyl polysiloxane, diphenyl polysiloxane,
Low-viscosity to high-viscosity oily polysiloxane-treated powder such as methylphenylpolysiloxane, gum-like polysiloxane-treated powder, methylhydrogenpolysiloxane-treated powder, fluorine-modified methylhydrogenpolysiloxane-treated powder, methyltrichlorosilane, methyltrialkoxysilane , Hexamethyldisilane, dimethyldichlorosilane, dimethyldialkoxysilane, trimethylchlorosilane, trimethylalkoxysilane and other organic silyl compounds or their fluorine-substituted treatment powder, ethyltrichlorosilane, ethyltrialkoxysilane, propyltrichlorosilane, Propyltrialkoxysilane, hexyltrichlorosilane, hexyltrialkoxysilane, long-chain alkyltrichlorosilane, long-chain alkyltriethoxysilane Organic modified silane or treated powder according to their fluorine substitution products, amino-modified polysiloxane treatment powder, fluorine-modified polysiloxane treatment powder,
Fluorinated alkyl phosphoric acid treated powder and the like can be mentioned.

One kind of these hydrophobic powders may be used,
Alternatively, two or more kinds may be used. Further, the powder is not limited to the above components as long as it is a hydrophobic powder applicable to general cosmetics. In the present invention, the blending amount of the hydrophobic powder is 30.0-94.0% by weight, preferably 50.0-90.0% by weight.

In the solid powder cosmetic of the present invention, in addition to the above-mentioned essential components, hydrocarbons such as liquid paraffin, iso liquid paraffin and squalane as oil components; olive oil, palm oil, coconut oil, macadamia nut oil, jojoba oil. Fats and oils such as; higher alcohols such as isostearyl alcohol; higher fatty acids, esters such as isopropyl myristate;
Chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane; silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, cyclic polysiloxanes of dodecamethylcyclohexasiloxane; propylene glycol, Polyhydric alcohols such as 1,3-butylene glycol and glycerin; sugars or sugar alcohols such as glucose, galactose and fructose ethylene glycol; sugar derivatives such as polyoxyethylene methyl glucoside and polyoxypropylene methyl glucoside; dextrin, hyaluronic acid , Polysaccharides such as chondroitin sulfate; amino acids of glycine, alanine, glutamic acid, serine, arginine, PCA soda sugar or analogs thereof Polypeptides such as collagen; Moisturizers such as organic acid salts such as sodium citrate, sodium lactate, sodium malate; UV absorbers such as benzophenone derivatives, paraaminobenzoic acid derivatives, paramethoxycinnamic acid derivatives, salicylic acid derivatives; antioxidants Agents, preservatives,
A fragrance, a blood circulation promoting agent, a cooling sensation agent, an antiperspirant, a bactericidal agent, a skin activating agent, an anti-inflammatory agent, vitamins and the like can be appropriately blended as necessary.

[0022]

EXAMPLES Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. The present invention is not limited to this. The blending amount is% by weight.

Example 1, Comparative Examples 1 to 3 As Example 1, a solid foundation having the composition shown in Table 1 below was prepared. (Manufacturing method) Components other than isoparaffin hydrocarbon, a surfactant and a moisturizer are mixed and pulverized by a pulverizer. Add a mixture of isoparaffinic hydrocarbon, surfactant and humectant with stirring at room temperature, mix and grind evenly with a crusher, then remove from the crusher and compression mold into a container such as a gold plate to solid foundation. Got

As comparative examples, a sample containing a non-volatile oil (Comparative Example 1), a sample containing a non-silicone surfactant (Comparative Example 2), and a sample containing a hydrophobized untreated powder (Comparative Example 3). Were prepared and compared by a tray test and a shine test by the following method. The results are shown in Table 1.

(Tray evaluation method) A solid sample foundation of 20 μg / 7 cm ^{2 was} applied to the surface of a perforated film (polyethylene / ethylene vinyl alcohol), a filter paper was brought into contact with the surface, and 1.6 g of ion-exchanged water and artificial sebum were applied from the back side. (Triolein 60%, oleic acid 20%, squalene 20%) 40 mg was simultaneously permeated and then a 3.5 g / cm ² weight was placed on the back side for 60 seconds to evaluate the degree of foundation adhesion to the filter paper as follows. The naked eye is judged based on the standard. This test evaluates sweat and sebum training simultaneously.

(Evaluation Criteria) 5: 100% to 90% of the foundation coating amount adheres to the filter paper. 4; 89% to 60% of the amount of foundation applied adheres to the filter paper. 3; 59% to 30% of the foundation coating amount adheres to the filter paper. 2; 29% to 5% of the amount of foundation applied adheres to the filter paper. 1; Less than 5% of the applied amount of foundation adheres to the filter paper.

(Evaluation method) Ten women in their twenties who answered oily skin by self-report were asked to apply the solid foundation of the sample after washing the face, and 5 hours after the application, 5 judges based on the following evaluation criteria. Asked me to do a shining evaluation. The average of the evaluation scores of the judges was used as the evaluation score of each test subject, and the average of the evaluation scores of 10 test subjects was used as the shine evaluation score of the sample.

(Evaluation criteria) 5: Very good. 4; Somewhat shiny. 3; Immediately after application and no change. 2; Somewhat powdery. 1; Very powdery.

[0029]

[Table 1] ────────────────────────────────── Examples Examples Comparative Examples Comparative Examples Comparative Examples Composition (% ) 1 1 2 3 ────────────────────────────────── Low boiling point isoparaffin 8.0-8.0 8.0 (Isozol 400) Squalane − 8.0 − − Polyether-modified silicone ^{* 1} 5.0 5.0 − 5.0 Sorbitan sesquiisostearate − − 5.0−1,3-butylene glycol 3.0 3.0 3.0 3.0 Titanium oxide treated with silicone compound ^{* 2} 10.0 10.0 10.0 − Muscovite treated with silicone compound ^{* 2} 15.0 15.0 15.0 − Silicone compound treated sericite ^{* 2} 20.0 20.0 20.0 − Silicone compound treated synthetic mica ^{* 2} 30.0 30.0 30.0 − Silicone compound treated iron oxide ^{* 2} 6.3 6.3 6.3 − Titanium oxide − − − 10.0 White mica − − − 15.0 Sericite − − − 20.0 Mica − − − 30.0 Iron oxide − − − 6.3 Nylon powder 2.2 2.2 2.2 2.2 Preservative 0.5 0.5 0.5 0.5 ─────────────────────────── ─────── Training evaluation 1 5 3 5 Shine evaluation 3.2 4.6 2.8 2.3 ──────────────────────────────── ─── Overall evaluation of makeup deterioration ○ × △ × ───────────────────────────────────

* 1: y + z = 52 to 6 in the general formula (1)
5, a = 8 to 10, b = 0, R = hydrogen atom * 2: Methyl hydrogen polysiloxane treated powder

From the above results, it was confirmed that the solid non-aqueous powder cosmetics in which the isoparaffin hydrocarbon, the silicone surfactant and the hydrophobic powder are combined are good for makeup breakage.

Example 2 and Comparative Examples 4 to 5 As Example 2, solid foundations having the composition shown in Table 2 below were prepared. (Production method) Components other than the isoparaffin hydrocarbon and the surfactant are mixed and pulverized by a pulverizer. To this was added a mixture of isoparaffinic hydrocarbon and surfactant mixed at room temperature with stirring, and the mixture was further uniformly mixed and ground by a grinder, then taken out from the grinder and compression molded into a container such as a gold plate to obtain a solid foundation.

As comparative examples, a sample containing isoparaffinic hydrocarbons having a boiling point of less than 210 ° C. (Comparative Example 4) and a sample containing non-volatile isoparaffinic hydrocarbons (Comparative Example 5) were prepared, and a tray test and a shine test were conducted. Was compared. Table 2 shows the results.

[0034]

[Table 2] ────────────────────────────── Example Comparative Example Comparative Example Component (%) 2 4 5 ── ──────────────────────────── Low-boiling isoparaffin 13.0 − − (Palmream 6) Low-boiling isoparaffin − 13.0 − (Isopar H) Non-volatile Paraffin − − 13.0 (Liquid paraffin) Polyether modified silicone ^{* 3} 5.0 5.0 5.0 Silicone compound treated titanium oxide ^{* 4} 15.0 15.0 15.0 Silicone compound treated sericite ^{* 4} 25.0 25.0 25.0 Silicone compound treated phlogopite ^{* 4} 15.0 15.0 15.0 Silicone compound treated Talc ^{* 4} 15.5 15.5 15.5 Iron oxide treated with silicone compound ^{* 4} 6.0 6.0 6.0 Silicon dioxide 5.0 5.0 5.0 Preservative 0.5 0.5 0.5 ──────────────────────── ────── Training evaluation 1 1 5 Shine evaluation 3.0 2.1 4.2 ────────────────────────────── Overall evaluation of makeup loss ○ △ × ───────────── ──────────────────

* 3: y + z = 52 to 6 in the general formula (1)
5, a = 8-10, b = 0, R = hydrogen atom * 4: Methylhydrogenpolysiloxane treated powder

From the above results, the low boiling point isoparaffin hydrocarbon having a boiling point of less than 210 ° C. was powdery and had a bad feeling in use. On the contrary, non-volatile paraffin could neither be trained nor shine. From the above, the boiling point is 210-35
Isoparaffinic hydrocarbons at 0 ° C appeared to be the most preferred.

[0037]

As described above, the solid non-aqueous powder cosmetics of the present invention prevent makeup deterioration, especially traits due to moisture such as sweat and tractiness and aging due to sebum, as well as freshness. It has a feeling of use.

Claims (4)

[Claims] 1. A solid non-aqueous powder cosmetic, comprising a low-boiling isoparaffin hydrocarbon, a silicone surfactant and a hydrophobic powder. 2. The boiling point of the isoparaffin hydrocarbon is 21.
It is 0-350 degreeC, The solid non-aqueous powder cosmetics of Claim 1 characterized by the above-mentioned. 3. The solid non-aqueous powder cosmetic according to claim 1, wherein the silicone-based surfactant is a polyether-modified silicone. 4. The solid non-aqueous powder cosmetic according to claim 1, further containing no solid or semi-solid oily raw material.