JP3082804B2 - 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 cosmetic for pores, and more particularly, to a base cosmetic suitable for concealing 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 on not only the skin color but also the form of the skin. The main form troubles are wrinkles and pores,
In particular, pores around the nose not only impair the smoothness of the skin surface, but also the unevenness makes it difficult for the base material to be evenly applied due to the unevenness, and it is also an active part of sebum secretion, so it is easy to lose makeup .

[0003] Conventionally, as a cosmetic for the purpose of concealing wrinkles, a guanosine derivative or coenzyme A or the like is used as an active ingredient to directly act on the skin itself to suppress the occurrence of wrinkles (JP-A-63-183535). And JP-A-2072
No. 20), a mixed system of sodium silicate and human serum albumin, or a mixed system of a specific amount of solid fat, liquid fat and extender pigment powder (those which are dull and transparent in a wet state) is effective As a component, one that temporarily expands wrinkles and makes it less noticeable (JP-A-63-22008, JP-A-3-5
No. 412), those which make the wrinkles less noticeable by utilizing the optical properties of a composite powder in which a pigment such as titanium oxide or zinc oxide is fixed to the surface of an inorganic powder such as talc or calcium carbonate (JP-A-3-181411). No.) etc. are known.

[0004] These cosmetics are certainly effective for concealing wrinkles on the skin, but cannot cope with concealing pores. this is,
This is considered to be due to the fact that the morphology of the pores cannot be changed easily as compared with wrinkles, the pores are present in a wider area than the wrinkles, and the pores are specific sites for secreting sebum.

[0005]

In order to hide pores on the skin surface, a method using the covering power of the foundation material or the foundation itself can be considered. It is easy to give an impression, and the makeup may be lost.

Therefore, the problem to be solved by the present invention is as follows:
It is an object of the present invention to provide a cosmetic that can hide pores without giving rise to heavy makeup or makeup loss by imparting appropriate translucency, a base effect, and water resistance and sebum resistance of a film.

[0007]

Means for Solving the Problems In order to solve the above problems, the present invention has the following constitution, that is, the hair of the present invention.
The cosmetic for pores comprises, as the component (a) , a film-forming component which is solid at room temperature selected from solid fats, solid surfactants, high molecular silicones, and acrylic copolymers; and as the component (b), luster. a powder consisting of a white pigment and / or extender pigments having a white even without and wet state, normally as the component (c)
10 to 30 % by weight in total of a nonvolatile oily material which is liquid at a temperature, and the weight ratio of the component (a) to the component (b) is 10: 1.
２2: 1, and the weight ratio of the component (a) to the component (c) is in the range of 20: 1 to 3: 1.

[0008] The components used in the present invention, the amounts used, and the like will be specifically described below.

<1> Component (a) Component (a) is a film-forming component which is a solid at room temperature and serves as a base for cosmetics. The component is a solid fat, a solid surfactant, a high molecular silicone, an acrylic type. 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 and spermaceti; oils and fats such as beef tallow and hydrogenated castor oil; Higher fatty acids such as stearic acid, behenic acid and palmitic acid; higher alcohols such as cetanol and stearyl alcohol;

Specific examples of the solid surfactant include glycerin monostearate, polyethylene glycol monostearate, and sorbitan tristearate. As the polymeric silicone, for example, as a commercial product,
For example, silicone KF96H-1 manufactured by Shin-Etsu Chemical Co., Ltd.
There are one million cp.

Acrylic copolymers are acrylic resins for cosmetics that can be dissolved or dispersed in water or alcohol and can form a film on the skin. For example, octylacrylamide acrylic resin (commercially available such as Kanebo NSC Damacryl) 79), and octyl acrylate / styrene copolymer.

<2> Component (b) The component (b) suppresses the luster of the decorative film due to the base,
As a component for controlling the transparency, a white pigment, extender, or a mixture thereof having a dull and white color even in a wet state is used.

Specific examples of the white pigment include titanium oxide,
Zinc oxide and the like can be mentioned. Specific examples of the extender include talc, sericite, kaolin, mica and the like.

<3> Component (c) The component (c) is a component that imparts flexibility to the decorative film by the base and improves the familiarity with the skin. used.

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

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

<5> Amount of Each Component Used In the present invention, the total content of component (a), component (b) and component (c) in the cosmetic is 10 to 80% by weight, preferably 20 to 30% by weight. % By weight. This total amount is 1
If it is less than 0%, the effect of concealing pores is reduced, and if it is more than 80%, the elongation of the cosmetic becomes heavy, and it is difficult to obtain a thin uniform film.

In this case, the ratio of the component (a) to the component (b) is in the range of 10: 1 to 2: 1 by weight. When this ratio is less than 10: 1, the effect of smoothing out unevenness on the skin surface is reduced, and the transparency of the film is increased, and the effect of concealing pores is also reduced. On the other hand, if this ratio exceeds 2: 1, the film becomes opaque, impairing the bare skin feeling, and after application,
The feeling of discomfort (powderiness) is produced, and the elongation of the cosmetic is increased.

The ratio between the component (a) and the component (c) is
The weight ratio is in the range of 20: 1 to 3: 1. This ratio is 2
If the ratio is less than 0: 1, the flexibility of the film is reduced, resulting in an uncomfortable feeling (stretch feeling) after application, and poor adaptation to the skin. On the other hand, when the ratio exceeds 3: 1, the gloss and transparency of the film are increased, the effect of hiding the pores is reduced, and the skin is easily adapted to sebum, so that the makeup lasts poorly and becomes sticky.

When the component (d) is used, the weight ratio between the component (b) and the component (d) is adjusted to be 1: 0 to 1: 1.

<6> Other Ingredients In addition to the components (a), (b) and (c), the cosmetic of the present invention contains various additives usually used in cosmetics, such as humectants, preservatives, and coloring. Agents, medicinal ingredients, purified water and the like.

[0023]

The cosmetic of the present invention has the following (a):
By including the specified amounts of the three components (b) and (c), 1) the pores are made less noticeable without relying on the covering power of the powder and maintaining the transparency of the bare skin. 2) The uneven skin Cosmetics can be evenly applied to the surface, realizing a cosmetic finish with less noticeable pores 3)
It is strong against sebum and makes it hard to lose makeup. 1), 2)
Has the effect of maintaining the effect of

Further, by blending the component (d),
It can also have a foundation function based on skin color or a skin color control function based on yellow, blue, pink and the like.

[0025]

The present invention will be described below with reference to examples.
In addition, the compounding amount in an Example is a weight%.

[0026]

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

Comparative Example 1 is a composition example of a conventional wrinkle-hiding cosmetic (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. Table 2 shows the results. The evaluation method is as follows.

<Method for Evaluating Film Properties> (1) Transparency The makeup base materials of Example 1 and Comparative Example 1 were applied to a opacity measurement paper (JIS K5400) with a doctor blade to a thickness of 1 mil, , And air-dried to obtain a dry film. The L value of this film is measured by a high-speed colorimeter manufactured by Murakami Shiken, and the value obtained by subtracting the L value of the blackboard from the L value of the white board is defined as transparency.

(2) Film strength A thin film of a cosmetic is formed on a glass plate in the same manner as described above, and a thread is applied to a 100 g weight having a polishing paper (No. 800) attached to the bottom thereof. The fixed object is placed and slowly pulled horizontally (about 1 cm / sec), the state of the remaining film is visually observed by five persons, and the remaining condition of the film is evaluated based on the following criteria.

Scratches are present, but most of the film remains: 10 points The film remains on the plate for more than half. : 5 points Only less than half of the film remains. : 3 points Almost no film remains. : 0 points

(3) Difficulty of compatibility with oil A thin film is formed on a glass plate in the same manner as described above, and 0.05 g of squalane is dropped on this film, and left for 5 minutes to adapt. Thereafter, the strength of the coating is evaluated in the same manner as the film strength.

(4) Difficulty of compatibility with water A thin film is formed on a glass plate in the same manner as described above, and 0.1 g of purified water is dropped on this film and left for 5 minutes to be blended. The film strength 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 lower transparency than the comparative product, that is, is superior in hiding power.
In addition, the film strength is high, and it is difficult to adapt to oil and water, so that pores can be concealed without fear of thick makeup or makeup collapse.

[0038]

Example 2 The component A shown in Table 3 was heated to 70 ° C. Similarly, the component B is heated to 70 ° C. After the heated B component is gradually added to the A component in which the powder is dispersed and emulsified,
Cool to 30 ° C to make cosmetics.

In Comparative Example 2, when the ratio of the component (a) to the component (b) is less than 10: 1, that is, when the component (b) is too small, the comparative example 3 includes the component (a): the component (c). Of 3: 1
In other words, Comparative Example 4 shows a case where the ratio of the component (a) to the component (b) exceeds 2: 1, that is, a case where the component (b) is too large.

[0040]

[Table 3]

Next, each cosmetic was applied to the skin of 20 female panelists in the usual manner, and then a commercially available powder foundation (composition: talc 33.89%, spherical nylon powder 5.0%, mica) 7. Titanium 10.0%, kaolin 10.0%, sericite 20.0%, titanium oxide
0%, yellow iron oxide 0.5%, red iron oxide 0.2%, squalane 10.0%, ethyl paraoxybenzoate 0.2%,
(Perfume 0.2%, α-tocopherol 0.01%, silicone oil 2.0%) were applied, and the properties were evaluated. Table 4 shows the results.

The evaluation method was “very good” with 10 points.
The evaluation was performed according to a 10-point method, with 5 points for “good”, 3 points for “normal” and 0 points for “bad”. Average score evaluation of panelists Standard 9.0 to 10.0 A: Very good 7.0 to less than 9.0 O: Good 5.0 to less than 7.0 C: Normal 0 to less than 5.0 x: bad

[0043]

[Table 4]

As can be seen from this table, the content of each of the components (a), (b) and (c) used in the present invention depends on the elongation at the time of coating, the feeling of tension, the stickiness, the uniformity of foundation, and the like. It has a great effect on the hiding condition of the pores and long-lasting makeup, and the pores can be concealed only by the specific content of the present invention without fear of heavy makeup or makeup loss.

[0045]

The cosmetic composition of the present invention has an appropriate translucency due to the above 1) action, a base effect due to 2) action, and 3).
Because of the water and sebum resistance of the film due to the action of
The pores can be hidden without worrying about heavy makeup or makeup loss.

Continuation of the front page (51) Int.Cl. ⁷ identification code FI A61K 7/48 A61K 7/48 (56) References JP-A-62-298511 (JP, A) JP-A-3-181411 (JP, A) JP-A-3-5412 (JP, A) JP-A-61-161211 (JP, A) JP-A-4-364105 (JP, A) JP-A-5-201826 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50 CA (STN)

Claims (2)

(57) [Claims] 1. A film-forming component which is a solid at room temperature selected from solid fats, solid surfactants, high molecular silicones and acrylic copolymers as the component (a), and has no gloss as the component (b). a powder consisting of a white pigment and / or extender pigments having a white even and wet state, normally as the component (c)
10 to 30 % by weight in total of a nonvolatile oily material which is liquid at a temperature, and the weight ratio of the component (a) to the component (b) is 10: 1.
A cosmetic composition for pores, wherein the cosmetic composition has a weight ratio of the component (a) to the component (c) of 20: 1 to 3: 1. 2. The pore correspondence according to claim 1, wherein a colorant is contained as the component (d), and the weight ratio between the component (b) and the component (d) is from 1: 0 to 1: 1. Cosmetics.