JP3483980B2 - Solid non-aqueous 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 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 refreshing feeling as well as lasting.

[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. When volatile oil is used, it is thought that the oil volatilizes after application and the potential oil absorption can be increased, and it is possible to prevent tray due to sebum, but if the volatilization rate is too fast, it may occur during the cosmetic production process or product container. It was a heavy burden and was not desirable.

[0004]

In recent years, in order to prevent the strain due to sebum and the shininess of the face, a specific sustained-release cyclic silicone having a larger molecular weight is blended by utilizing the above-mentioned principle. Technology has been developed (JP-A-4-1)
17315, JP 4-117316 A, JP 4-187611 A, JP 4-187612 A.
Japanese Patent Application Laid-Open No. 4-305510, Japanese Patent Application Laid-Open No. 4-3
No. 05511). This sustained-release cyclic silicone can prevent trays because the oil content volatilization rate and sebum generation rate are close, but in a solid non-aqueous powder cosmetic containing a large amount of hydrophobic powder, There is a drawback that the elongation becomes heavy and the feeling of use deteriorates. 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 the following feeling of use.

[0006]

As a result of intensive studies to solve the above-mentioned conventional problems, the inventors of the present invention have found that the hydrophilicity of the hydrophobic powder can be improved by adding a silicone-based surfactant to the hydrophobic powder. It improves the adherence to the skin, which is a property of the skin, and improves training due to moisture such as sweat, and the addition of safe cyclic silicone that easily volatilizes due to contact with the skin temperature and air, The present invention has been completed by finding out that the training and the shininess of the face are prevented, and further that it has a refreshing feeling of use.

That is, the present invention provides the following general formula (1)

[Chemical 2] (In the above formula, R ¹ and R ² are the same or different and each represents an alkyl group or an alkenyl group, and m represents a number of 6.)
Cyclic silicone represented by: Polyether modified silicone
The present invention provides a solid non-aqueous powder cosmetic, characterized in that it contains a powder and a hydrophobic powder.

The cyclic silicone used in the present invention is represented by the above general formula (1), wherein R ¹ and R ² represent an alkyl group or an alkenyl group. Examples of the alkyl group include those having 1 to 10 carbon atoms, preferably a methyl group, an ethyl group, a propyl group, and an isopropyl group. Examples of the alkenyl group include those having 2 to 6 carbon atoms, preferably a vinyl group, an allyl group, a 1-propenyl group,
It is a 1-butenyl group.

The compounding amount of the cyclic silicone is 1.0 to 50.
It is 0% by weight, preferably 5.0 to 30.0% by weight. A blending amount of more than 50.0% by weight is not preferable because it causes baking. On the other hand, a blending amount of less than 1.0% by weight does not increase the oil absorption amount due to a small amount of volatile oil and causes shininess.

The cyclic silicone represented by the general formula (1) can be produced by any appropriate method. For example, according to the method represented by the following reaction formula (2), a highly pure product can be obtained. Can be obtained in large quantities.

[0011]

[Chemical 3]

(In the formula, R ¹ and R ² have the same meanings as described above, X represents a halogen atom, n represents an integer of 0 to 3, and p represents an integer of 0 to ^3. )

That is, the cyclic silicone (1) can be produced by reacting the dihydroxyorganosiloxane derivative represented by the general formula (3) with the dihalogenosilane derivative represented by the general formula (4). it can.

The silicone-based surfactant used in the present invention is preferably a polyether-modified silicone represented by the following general formula (5).

[0015]

[Chemical 4]

(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 powder components 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 and an autoclave method.
A usual surface treatment method such as a mechanochemical method can be used.

For example, when a hydrophobic treatment agent is added to the raw material powder for treatment, it may be diluted with an appropriate solvent (dichloromethane, chloroform, hexane, ethanol, xylene, volatile silicone, etc.) or added. You may add directly. A ball mill, a hodgersite 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 30.0-96.0% by weight, preferably 50.0-90.0% by weight.

In the solid non-aqueous powder cosmetic of the present invention, in addition to the above-mentioned essential components, hydrocarbon oils such as liquid paraffin, iso liquid paraffin, iso liquid paraffin, squalane, etc .; olive oil, palm oil, Fats and oils such as coconut oil, macadamia nut oil and jojoba oil; higher alcohols such as isostearyl alcohol; higher fatty acids, esters such as isopropyl myristate; chain poly such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane Siloxane: Silicone oil such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, cyclic polysiloxane of dodecamethylcyclopentasiloxane; benzophenone derivative, paraaminobenzoic acid derivative, paramethoxycinnamic acid derivative, salicy Ultraviolet absorbers such as acid derivatives, antioxidants, preservatives, perfumes, blood circulation promoters, cooling agents, antiperspirants,
Ingredients that are commonly used in cosmetics, such as bactericides, skin activators, anti-inflammatory agents, and vitamins, can be appropriately added as needed as long as the effects of the present invention are not impaired.

[0026]

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 silicone oil and a surfactant are mixed and pulverized by a pulverizer. To this was added a mixture of silicone oil and a surfactant 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 a non-volatile silicone 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). ) Was prepared, and a tray test, a shine test, and a usability test were compared by the following methods. The results are shown in Table 1.

(Tray evaluation test) 20 μg / 7 cm ² of a sample solid foundation was applied to the surface of a perforated film (polyethylene / ethylene vinyl alcohol), the surface was brought into contact with a filter paper, 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.

(Tecari Evaluation Test) Ten women in their twenties who answered that they were self-reported to have oily skin were asked to apply the solid foundation of the sample after washing the face, and four hours after the application, five judges were judged 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 shiny. 4; Somewhat shiny. 3; Immediately after application and no change. 2; Somewhat powdery. 1; Very powdery.

(Usability evaluation test) 10 specialized panels applied the sample solid foundation to the inside of the upper arm,
The feeling of use was evaluated according to the following criteria.

(Evaluation criteria) ○; There were more than 7 people who answered that they had good spread. Δ: There were 3 to 6 people who answered that the spread was good. ×: Less than 3 people answered that they were able to spread freely.

[0035]

[Table 1] ──────────────────────────────────── Examples Comparative Examples Comparative Examples Comparative Examples Composition (%) 1 1 2 3 ──────────────────────────────────── Dodecamethylcyclohexasiloxane 20.0 − 20.0 20.0 (Cyclic silicone hexamer) Methylphenylpolysiloxane-20.0 --- Polyether-modified silicone ^{* 1} 1.0 1.0-1.0 Sorbitan sesquiisostearate--1.0-Titanium oxide treated with silicone compound ^{* 2} 20.0 20.0 20.0 Site ^{* 2} 20.0 20.0 20.0-Silicon 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 ---- 20.0 Cerisite ----- 20.0 Synthetic 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 ──────────────────────────────────── Tray evaluation 1 4 2 5 Shine evaluation 2.8 4.6 2.8 2.4 Feeling of use ○ × △ × ─────────────────────────────────── ── Makeup makeup comprehensive evaluation ◎ × △ × ─────────────────────────────────────

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

From the above results, the cyclic silicone hexamer,
It was confirmed that the solid non-aqueous powder cosmetics in which the silicone-based surfactant and the hydrophobic powder were combined were good for the makeup deterioration.

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

As comparative examples, a cyclic silicone pentamer (Comparative Example 4) and a cyclic silicone pentamer (Comparative Example 5) were prepared, and the feeling-of-use evaluation tests were compared. The results are shown in Table 2.

[0040]

[Table 2] ─────────────────────────────────── Examples Examples Comparative Examples Comparative Examples Composition (%) 2 4 5 ─────────────────────────────────── Dodecamethylcyclohexasiloxane 12.0 − − (Cyclic silicone 6 Decamethylcyclopentasiloxane-12.0- (Cyclic silicone pentamer) Tetradecamethylcycloheptasiloxane-12.0 (Cyclic silicone heptamer) Polyether-modified silicone ^{* 3} 5.0 5.0 5.0 Silicone compound treated titanium oxide ^{* 4} 20.0 20.0 20.0 Silicone compound treated muscovite ^{* 4} 25.0 25.0 25.0 Silicone compound treated synthetic mica ^{* 4} 25.0 25.0 25.0 Silicone compound treated iron oxide ^{* 4} 6.3 6.3 6.3 Nylon powder 6.2 6.2 6.2 Preservative 0.5 0.5 0.5 ─────── ───────────── ──────────────── Usability evaluation ○ △ △ ──────────────────────────── ────────

From the above results, the cyclic silicone pentamer does not have a good make-up effect, and conversely, the cyclic silicone pentamer has a tendency that the elongation of the makeup becomes heavy and the feeling of use is not preferable. From the above, the cyclic silicone hexamer was considered to be the most preferable.

Example 3 As Example 3, a solid foundation having the composition shown in Table 3 below was prepared. (Manufacturing method) Components other than silicone oil and a surfactant are mixed and pulverized by a pulverizer. To this was added a mixture of silicone oil and a surfactant at room temperature with stirring, and the mixture was further uniformly mixed and ground by a grinder, then taken out of the grinder and compression molded into a container such as a gold plate to obtain a solid foundation.

[0043]

[Table 3] ─────────────────────────── Example composition (%) 3 ──────────── ──────────────── Dodecamethylcyclohexasiloxane 5.0 (Cyclic silicone hexamer) Polyether-modified silicone ^{* 5} 6.0 Silicone compound treated titanium oxide ^{* 6} 15.0 Silicone compound treated phlogopite ^{* 6} 15.0 Silicon compound treated sericite ^{* 6} 29.0 Silicon compound treated talc ^{* 6} 18.2 Silicon compound treated iron oxide ^{* 6} 6.3 Silicon dioxide 5.0 Preservative 0.5 ──────────────────── ──────── Tray evaluation 1 Shine evaluation 2.8 Usability evaluation ◎ ─────────────────────────── Usability evaluation ○ ─ ──────────────────────────

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

[0045]

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.

Continuation of the front page (56) Reference JP-A-61-40204 (JP, A) JP-A-1-294612 (JP, A) JP-A-53-142542 (JP, A) JP-A-8-157324 (JP , A) JP 5-178722 (JP, A) JP 6-247829 (JP, A) JP 6-305933 (JP, A) JP 6-219925 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (2)

(57) [Claims] 1. The following general formula (1): (In the above formula, R ¹ and R ² are the same or different and each represents an alkyl group or an alkenyl group, and m represents a number of 6.) 1.0 to 50.0% by weight of a cyclic silicone represented by Po
0.1 to 20.0% by weight of a silicone-based surfactant composed of a polyether-modified silicone , and 3 parts of a hydrophobic powder.
Solid-type non-aqueous powder cosmetics, characterized by being compounded in an amount of 0.0-96.0% by weight . 2. The solid non-aqueous powder cosmetic according to claim 1, containing no solid or semi-solid oily raw material.