JPH069329A - Cosmetic - Google Patents

Abstract

PURPOSE:To provide a cosmetic giving a durable make-up capable of masking the pores of the skin without using a thick make-up by imparting a cosmetic with moderate translucency, make-up effect, water-resistance and sebum- resistance of the coating film. CONSTITUTION:The, cosmetic contains (A) a solid component selected from among a solid fat (e.g. solid paraffin, wax, stearic acid and cetanol), a solid surfactant (e.g. glycerol monostearate), a polymeric silicone and an acrylic copolymer, (B) powder consisting of a white pigment (e.g. titanium oxide or zinc oxide) and/or an extender pigment (e.g. talc, sericite and kaolin) and (C) a nonvolatile oily material such as liquid paraffin, jojoba oil, olive oil, oleic acid and oleyl alcohol. The total amount of the components is 10-80wt.%, the weight ratio of A:B is (10-2):1 and that of A:C is (20-3):1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic composition, and preferably to a cosmetic composition suitable for covering pores on the skin surface in combination with a foundation.

[0002]

2. Description of the Related Art The makeup effect of a foundation often depends not only on the skin color but also on the skin morphology. The main morphological troubles are wrinkles and pores,
In particular, the pores around the nose not only impair the smoothness of the skin surface, but due to the unevenness, it is difficult to apply the base material evenly to the periphery, and since it is also a site where sebum secretion is active, it is easy for makeup to break down. .

Conventionally, as a cosmetic for the purpose of masking wrinkles, one using a guanosine derivative or coenzyme A as an active ingredient and directly acting on the skin itself to suppress the generation of wrinkles (Japanese Patent Laid-Open No. 63-183535). JP-A-2072
No. 20), a mixed system of sodium silicate and human serum albumin, or a specific mixed system of solid fat, liquid fat and extender pigment powder (however, it is matte and transparent in a wet state) is effective. As a component, which temporarily extends wrinkles to make them less noticeable (JP-A-63-22008, JP-A-3-5)
No. 412), talc, calcium carbonate and the like, and wrinkles are made inconspicuous by utilizing the optical properties of a composite powder in which a pigment such as titanium oxide or zinc oxide is fixed on the surface (JP-A-3-181411). No.) etc. are known.

Although these cosmetics are effective for concealing wrinkles on the skin, they cannot cope with concealing pores. this is,
It is considered that this is because the morphology of pores cannot be easily changed as compared with wrinkles, the pores are present in a wider area than wrinkles, and the pores are specific sites that secrete sebum.

[0005]

To cover the pores on the skin surface, it is conceivable to use the covering power of the base material or the foundation itself, but the covering power (for example, the covering power of powder) can be applied to thick makeup. It is easy to give an impression, and there is a risk that makeup may be damaged.

Therefore, the problem to be solved by the present invention is
It is an object of the present invention to provide a cosmetic composition capable of concealing pores without giving concern for thick makeup and makeup loss by imparting appropriate translucency, ground effect and water resistance and sebum resistance of the film.

[0007]

In order to solve the above-mentioned problems, the present invention has the following constitution. That is, the cosmetic of the present invention comprises, as the component (a), a solid fat, a solid surfactant,
A solid component selected from high-molecular silicones and acrylic copolymers, (b) a powder comprising a white pigment and / or an extender pigment having a white color even in a wet state and a (c) component. Non-volatile oily material in total 1
0 to 80% by weight, the weight ratio of component (a) to component (b) is in the range of 10: 1 to 2: 1 and the weight ratio of component (a) to component (c) is 20: It is characterized in that it is in the range of 1 to 3: 1.

The components used in the present invention and the amounts used will be described in detail below.

<1> Component (a) The component (a) is a solid component at room temperature which serves as a base for cosmetics.
Solid fats, solid surfactants, polymeric silicones, acrylic copolymers, or mixtures thereof are used.

Specific examples of solid fats include hydrocarbons such as microcrystalline wax and solid paraffin; waxes such as beeswax, carnauba wax, candelilla wax, montan wax, whale wax; fats and oils such as beef tallow and hydrogenated castor oil; Examples thereof include higher fatty acids such as stearic acid, behenic acid and palmitic acid; and higher alcohols such as cetanol and stearyl alcohol.

Specific examples of the solid surfactant include glyceryl monostearate, polyethylene glycol monostearate, sorbitan tristearate and the like. As the polymer silicone, for example, as a commercially available product,
For example, Shin-Etsu Chemical Co., Ltd. silicone KF96H-1
There are, 000,000 cp.

The acrylic copolymer is an acrylic resin for cosmetics which can be dissolved or dispersed in water or alcohol and can form a film on the skin. For example, octyl acrylamide acrylic resin (commercially available, for example, Kanebo NSC Dermacryl). 79), octyl acrylate / styrene copolymer, and the like.

<2> Component (b) The component (b) suppresses the gloss of the cosmetic film by the base, and
A white pigment, an extender pigment, or a mixture thereof, which is a component for controlling transparency and has a white color even in a dull state, is used.

Specific examples of the white pigment include titanium oxide,
Examples thereof include zinc oxide. Specific examples of extender pigments include talc, sericite, kaolin, mica and the like.

<3> Component (c) The component (c) is a component that imparts flexibility to the cosmetic film made of the base and improves the skin familiarity, and is a non-volatile oily material for cosmetics that is liquid at room temperature. used.

Specific examples thereof include hydrocarbons such as liquid paraffin and squalane; oils and fats such as olive oil, castor oil and mink oil; esters such as jojoba oil and isopropyl palmitate; higher fatty acids such as oleic acid and isostearic acid. Higher alcohols such as oleyl alcohol and isostearyl alcohol; liquid surfactants such as polyoxyethylene sorbitan monostearate, polyoxyethylene hydrogenated castor oil (20 EO), and sorbitan monolaurate .

<4> Component (d) The component (d) is a component for coloring the cosmetic film, and specific examples thereof include inorganic pigments such as iron oxide yellow, red iron oxide, and yellow gourd, red No. 201, yellow 4 No. 5, Yellow No. 5, tar pigments such as aluminum lake, chlorophyll, shikonin, β
-Natural pigments such as carotene and the like can be mentioned.

<5> Amount of each component used In the present invention, the total content of the components (a), (b) and (c) in the cosmetic is 10 to 80% by weight, preferably 20 to 30%. It is in the range of% by weight. This total amount is 1
When it is less than 0%, the effect of hiding pores is lowered, and when it exceeds 80%, the elongation of the cosmetic composition becomes heavy and it is difficult to obtain a thin uniform film.

In this case, the weight ratio of the component (a) to the component (b) is in the range of 10: 1 to 2: 1. When this ratio is less than 10: 1, the effect of smoothening the irregularities on the skin surface is reduced, and the transparency of the film is increased, thus hiding the pores. On the other hand, if this ratio exceeds 2: 1, the film becomes opaque, impairing the feeling of bare skin, and after application,
It causes an uncomfortable feeling (powderiness), and the cosmetics grow slowly.

The ratio of component (a) to component (c) is
The weight ratio is in the range of 20: 1 to 3: 1. This ratio is 2
When it is less than 0: 1, the flexibility of the film is lowered, and after application, a feeling of strangeness (strength) is produced and the skin is not well adapted to the skin. On the other hand, when this ratio exceeds 3: 1, the gloss and transparency of the film increase, the effect of concealing the pores decreases, and it becomes easier to adapt to the sebum, resulting in poor makeup retention and stickiness.

When the component (d) is used, the weight ratio of the component (b) and the component (d) is set to 1: 0 to 1: 1.

<6> Other Ingredients In addition to the above-mentioned components (a), (b) and (c), the cosmetics of the present invention include various additives usually used in cosmetics, such as moisturizers, preservatives, and colorings. It may contain agents, medicinal components, purified water and the like.

[0023]

The cosmetic of the present invention has the above-mentioned (a),
By including specific amounts of the three components (b) and (c), 1) it does not rely on the covering power of the powder and makes the pores less noticeable while maintaining the transparency of bare skin, and 2) uneven skin. Since the cosmetics can be evenly applied to the surface, a cosmetic finish with less conspicuous pores is realized 3)
Strong against sebum and less likely to cause makeup damage 1), 2)
Has the effect of maintaining the effect of.

By adding the component (d),
It can also have a skin color foundation function or a skin color control function such as yellow, blue, or pink.

[0025]

EXAMPLES The present invention will be described below with reference to examples.
The blending amount in the examples is% by weight.

[0026]

Example 1 Components A shown in Table 1 were heated and dissolved at 70 ° C.,
Add component B to this. Next, heat the C component to 70 ° C,
This is gradually added to the mixed system of the above A and B components to emulsify and
After cooling to 0 ° C, component D is added and cooled to 30 ° C to obtain a makeup base material.

Comparative Example 1 is a composition example of a conventional cosmetic for wrinkle concealing (described in Example 2 of JP-A-3-5412).

[0028]

[Table 1]

Next, a film is formed with these makeup base materials,
The film properties were evaluated. The results are shown in Table 2. The evaluation method is as follows.

<Evaluation Method of Film Properties> (1) Transparency On a hiding ratio measuring paper (JIS K5400), the makeup base materials of Example 1 and Comparative Example 1 were applied with a doctor blade to a thickness of 1 mil, and the temperature was kept at room temperature. After being left at room temperature for 1 day, it is air-dried to obtain a dry film. The L value of this coating was measured with a high-speed colorimeter manufactured by Murakami Color Research Institute, and the value obtained by subtracting the L value of the blackboard from the L value of the white board was taken as the transparency.

(2) Film strength A thin film of cosmetics was formed on a glass plate in the same manner as above, and a thread was put on a weight of 100 g to which polishing paper (No. 800) was attached according to the bottom surface. The fixed one is placed and slowly pulled horizontally (about 1 cm / sec), and the state of the remaining film is visually observed by 5 persons, and the condition of the remaining film is evaluated according to the following criteria.

There are scratches, but most of the film remains: 10 points More than half of the film remains on the plate. : 5 points Only half or less of the film remains. : 3 points Almost no film remained. : 0 points

(3) Incompatibility with oil A thin film was formed on a glass plate in the same manner as described above, 0.05 g of squalane was dropped on this film, and the film was left standing for 5 minutes to become familiar. Then, the strength of the film is evaluated in the same manner as the film strength.

(4) Incompatibility with water A thin film was formed on a glass plate in the same manner as above, 0.1 g of purified water was dropped on this film, and the mixture was allowed to stand for 5 minutes to become familiar with it. The strength of the film is evaluated in the same manner as the film strength.

The results are shown in Table 2.

[0036]

[Table 2]

As can be seen from this table, the cosmetic of the present invention has a lower transparency than the comparative product, that is, it has an excellent hiding power.
In addition, the film strength is high, and it is difficult for the oil and water to adapt to it, so that it is possible to hide the pores without worrying about thick makeup or makeup loss.

[0038]

Example 2 The component A shown in Table 3 is heated to 70 ° C. Similarly, the B component is also heated to 70 ° C. In this way, the heated component B is gradually added to the component A in which the powder is dispersed, and after emulsification,
Cool to 30 ° C. to make a cosmetic.

In Comparative Example 2, the ratio of component (a): component (b) is less than 10: 1, that is, when the amount of component (b) is too small, Comparative Example 3 is (a) component: (c) component. Ratio is 3: 1
When the ratio exceeds (c), that is, when the component (c) is too much, and in Comparative Example 4, the ratio of the component (a) to the component (b) exceeds 2: 1, that is, when the amount of the component (b) is too large.

[0040]

[Table 3]

Next, each cosmetic was applied to the skin of 20 female panelists by a conventional method, and then a commercially available powder foundation (composition: 33.89% talc, 5.0% spherical nylon powder, mica). Titanium 10.0%, Kaolin 10.0%, Sericite 20.0%, Titanium oxide 8.
0%, yellow iron oxide 0.5%, red iron oxide 0.2%, squalane 10.0%, ethyl paraoxybenzoate 0.2%,
0.2% of fragrance, 0.01% of α-tocopherol, and 2.0% of silicone oil) were applied and the characteristics were evaluated. The results are shown in Table 4.

The evaluation method is as follows: "very good" is 10 points,
It was performed by a 10-point method in which "good" was 5 points, "normal" was 3 points, and "bad" was 0 points. Average score evaluation of panelists Standard 9.0 to 10.0 ◎: Very good 7.0 to less than 9.0 ○: Good 5.0 to less than 7.0 △: Normal 0 to less than 5.0 ×: bad

[0043]

[Table 4]

As can be seen from this table, the contents of the respective components (a), (b) and (c) used in the present invention are such that the elongation during coating, the feeling of tension, the stickiness, the uniformity of the stickiness of the foundation, It has a great influence on the condition of hiding pores and the lasting effect on makeup, and the pores can be hidden only by the specific content of the present invention without worrying about thick makeup and makeup loss.

[0045]

EFFECT OF THE INVENTION The cosmetic composition of the present invention has an appropriate semi-transparency due to the action of 1), a base effect due to the action of 2) and 3)
Since it has water resistance and sebum resistance of the film due to the action of
You can hide pores without worrying about heavy makeup or makeup loss.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location A61K 7/48 9051-4C

Claims (2)

[Claims] 1. A solid component selected from solid fats, solid surfactants, high molecular silicones, and acrylic copolymers as the component (a), and a dull and wet white color as the component (b). The powder containing the white pigment and / or the extender pigment and the non-volatile oily material as the component (c) are contained in a total amount of 10 to 80% by weight, and the weight ratio of the component (a) and the component (b) is 10: 1 to 2: 1 and (a)
A cosmetic characterized in that the weight ratio of the component to the component (c) is in the range of 20: 1 to 3: 1. 2. The makeup according to claim 1, wherein a colorant is contained as the component (d), and the weight ratio of the component (b) to the component (d) is 1: 0 to 1: 1. Fee.