JP2788288B2 - Cosmetic for wrinkle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applied to fine wrinkles such as eyelids, eye marks, forehead, mouth, neck, etc. to temporarily stretch fine wrinkles and make fine wrinkles inconspicuous. It is intended to provide a so-called wrinkle-removing cosmetic.

[Prior Art] Conventionally, in order to make wrinkles less noticeable, a method of acting on the skin itself to prevent the appearance of wrinkles and a method of temporarily physically pulling the wrinkled skin have been considered. .

Examples of the former include a skin external preparation (Japanese Patent Application Laid-Open No. 61-289016) containing three essential components of specific amino acids, vitamins and saccharides in order to activate the cell activating action, and enhance skin functions. Cosmetics for preventing skin aging containing vitamin E-γ-linolenic acid ester
No. 39511) and cosmetics containing extracts of umbilical cord and chicken limbo to improve the water retention of the skin (JP-A-58-1983).
No. 113114) is known.

However, none of these methods can be expected to produce a remarkable effect in a short period of time.

On the other hand, as an example of the latter, a wrinkle removing cosmetic composition using sodium silicate and human serum albumin in combination is applied by applying the principle of applying the composition to the skin surface, then drying and pulling the skin (Japanese Patent Application Laid-Open No.
63-22008), but sodium silicate has a high pH
And that human serum albumin may cause skin allergy. Also, applying the same principle, a wrinkle-strengthening cosmetic (JP-A-63-139105) using a combination of a montmorillonite clay mineral, pullulan and water is known. Challenges remain. In addition, wrinkle-extinguishing cosmetics prepared by dissolving a high-molecular polymer such as ethyl acrylate or methacrylic acid in a solvent can provide a transparent feeling, but the safety of the solvent remains a problem. Furthermore, cosmetics containing a water-soluble polymer for cosmetics, such as polyvinylpyrrolidone and polyvinyl alcohol, have poor adaptability to skin and shrinkage, easily peel off the film, and have a weak wrinkle elongation effect.

[Problems to be Solved by the Invention] The inventor of the present invention has good adaptability to the skin, has excellent film stability, makes wrinkles inconspicuous without impairing transparency, and has high safety without skin irritation. An object of the present invention is to provide a cosmetic for wrinkles.

[Means for Solving the Problems] The present invention provides a solid fat as the component (a), a liquid oil as the component (b), silica as the component (c), a titanium oxide-coated pigment, an inorganic silicon compound-coated pigment, and The three components of the extender powder selected from the acrylic resin-coated extender are essential components, and the weight ratio of the component (a) to the component (b) is 2: 1 to 99: 1, and the component (a) An oil-in-water type wrinkle-removing cosmetic, characterized in that the weight ratio of the component (b) to the component (b) and the component (c) is 2: 1 to 1: 4.

Further, a preferred embodiment is a solid fat as the component (a), a liquid oil as the component (b), silica, a titanium oxide-coated pigment, an inorganic silicon compound-coated pigment, and an acrylic resin-coated pigment as the component (c). The selected extender pigment powder, the four components of the auxiliary film-forming agent as essential components as component (d), and the weight ratio of component (a) to component (b) is 2: 1 to 99: 1, The weight ratio of the sum of the components (a) and (b) to the component (c) is 2: 1 to 1: 4, and (a)
An oil-in-water wrinkle-removing cosmetic, wherein the weight sum of the component, the component (b) and the component (c) is larger than the component (d).

 Hereinafter, the present invention will be described in detail.

The solid fat used in the present invention is an oily raw material for cosmetics having a melting point of 40 ° C. or higher, for example, hydrocarbons such as microcrystalline wax and solid paraffin, beeswax, carnauba wax, candelilla wax, montan wax,
Waxes such as whale wax, fats and oils such as beef tallow and hardened castor oil, fatty acids such as stearic acid, behenic acid and palmitic acid, higher alcohols such as cetanol and stearyl alcohol, and solid surfactants. Select and use one or more.

The liquid oil used in the present invention is a non-volatile oily raw material for cosmetics which is liquid at normal temperature, for example, hydrocarbons such as liquid paraffin and squalane, oils and fats such as olive oil, castor oil and mink oil, jojoba oil and the like. Esters such as isopropyl palmitate; fatty acids such as oleic acid / isostearic acid; higher alcohols such as oleyl alcohol / isostearyl alcohol; and liquid surfactants. One or more of these are selected and used.

In addition, volatile oil agents such as isoparaffin having 10 to 13 carbon atoms and cyclic silicone oil are excluded.

The extender pigment powder used in the present invention is a powder having no gloss, being transparent in a wet powder state, and having a light scattering effect, such as silica (silicon dioxide), titanium mica, and titanium sericite. Powders in which the surface of a titanium oxide-coated extender or an extender such as talc, kaolin, mica or sericite is coated with an inorganic silicon compound (JP-A-60-228406)
No.) and powder coated with acrylic resin (Japanese
No. -69708), and one or more of these are selected and used.

The auxiliary film-forming agent used in the present invention is for forming a flexible skin when the cosmetic for wrinkles is applied to the skin, and is, for example, a high molecular silicone (eg, silicone KF-96-). 300,000 CP, manufactured by Shin-Etsu Chemical Co., Ltd.), ethyl acrylate, polyvinyl acetate, a copolymer of methoxyethyl acrylate and hydroxyethyl acrylate, and polyvinyl alcohol. One or more of these are selected and used.

In addition, it can contain components commonly used in cosmetics such as humectants, preservatives, coloring agents, medicinal ingredients, volatile oils, and purified water.

The wrinkle-removing cosmetic provided by the present invention is a solid fat as the component (a), a liquid oil as the component (b),
As the component (c), three components of the extender pigment powder are essential components. The weight ratio of the component (a) to the component (b) is
2: 1 to 99: 1.

When the weight ratio exceeds 2: 1, the amount of liquid oil becomes too large, the film strength after application to the skin becomes weak, and the makeup stickiness deteriorates.
On the other hand, if the weight ratio exceeds 99: 1, the amount of liquid oil is too small, so that a feeling of strangeness (tension) occurs after application to the skin.

The ratio of the weight sum of the components (a) and (b) to the weight of the component (c) is preferably from 2: 1 to 1: 4.

When the weight ratio exceeds 2: 1, the relative ratio of the powder becomes small, and the wrinkling effect becomes weak. On the other hand, if the weight ratio exceeds 1: 4, elongation at the time of application, conformity to the skin, and makeup stickiness become poor.

Further, provided by the present invention, cosmetics for wrinkles,
In addition to the three essential components (a), (b) and (c), an auxiliary film-forming agent may be contained as component (d), but the components (a) and (b) The weight sum of component (c) must be greater than the weight of component (d).

If the component (d) is larger, the characteristics of the auxiliary film-forming agent become too strong, the skin does not easily adapt to the skin when applied to the skin, the film is easily peeled off, and the makeup is poor.

Next, the use of the cosmetic for wrinkles of the present invention is described.

An appropriate amount (10 to 100 mg / cm ²⁾
Place it on your finger, put it on the wrist, eyebrows, forehead, mouth, neck, etc. where you are concerned about fine wrinkles.

[Examples] Next, the formulations and production methods of Examples of the present invention and Comparative Examples for comparison are described.

 The mixing ratio is part by weight.

Table 1 summarizes the prescriptions of the wrinkle-removing cosmetics of Example 1 and Comparative Examples 1, 2, and 3.

* Latex talc used in this example is talc (60
Part) is an extender pigment powder obtained by coating the surface of (part) with a copolymer (40 parts) of methyl methacrylate and ethylene glycol dimethacrylate (9: 1) by a suspension polymerization method.

(Preparation method) is heated to 70 ° C to dissolve uniformly.

The powder in which the powder is stirred and dispersed is heated to 70 ° C. in advance.

 Invert emulsification by gradually adding while stirring.

Cool to 40 ° C with stirring, add and stop stirring at 30 ° C.

The product 1, the comparative product 1, the comparative product 2, and the comparative product 3 are obtained by packing in a container.

Next, the formulations of the wrinkle-removing cosmetics of Example 2 and Comparative Examples 4 and 5 are summarized in Table 2.

 Both formulations contain a volatile oil agent.

** Silicon dioxide-coated mica used in this example includes sodium orthosilicate on the surface of 10 parts of mica having an average particle size of 30 μm.
An extender pigment powder obtained by reacting with 100 parts of an aqueous solution.

(Preparation method) The powder, which was previously stirred and dispersed, was heated to 70 ° C. , Each heated to 70 ° C and added after uniform dissolution. The mixture is added little by little while stirring, and the emulsion is inverted.

Cool to 40 ° C with stirring, add and stop stirring at 30 ° C.

The product 2, the comparative product 4, and the comparative product 5 are obtained by filling the containers.

Example 3 Cosmetic for wrinkle (prescription) (Manufacturing method) and are heated to 70 ° C. and uniformly dissolved.
Invert emulsification by adding while stirring. Cool to 30 ° C. and pack in container to obtain product 3 of the present invention.

[Effects of the Invention] The product of the present invention is excellent in the organoleptic properties used (elongation at the time of application, conformability to the skin, uncomfortable feeling), has good hiding degree of fine lines and good makeup, and does not impair transparency. This will be described in detail.

(1) Comparison of sensory characteristics used, degree of hiding of fine wrinkles and makeup stickiness <Experimental methods and results> (Sample) Inventive product 1 and Comparative products 1, 2, and 3 (Experimental method) Have each sample applied by the method described in Each evaluation item as shown in Table 3 is evaluated by a five-point method. Table 4 shows the average points.

(Evaluation) (result) As is clear from Table 4, the product 1 of the present invention has a high score in any of the items and has achieved the intended purpose.

On the other hand, in Comparative Product 1 in which the weight ratio of the component (a) to the component (b) is out of the allowable range, the degree of hiding of fine wrinkles is reduced, the film strength is weakened, and the makeup stickiness is poor. Also,
The comparative product 2 in which the ratio of the weight sum of the component (a) and the component (b) to the weight of the component (c) is out of the permissible range is poor in elongation at the time of application, adaptation to the skin, and poor makeup. Furthermore, in the comparative product 3 in which the weight of the component (d) is larger than the sum of the weights of the components (a), (b) and (c), the familiarity with the skin, uncomfortable feeling (tension), and makeup stickiness are deteriorated. ing.

(2) Comparison of transparency and gloss <Experimental methods and results> (Samples) Product 2 of the present invention and Comparative products 4,5 (Test method) (A) Preparation of dry film Doctor on opacity measurement paper (JIS K 5400) 1 with blade
Mill apply and air dry at room temperature for 5 hours.

(B) Measurement of transparency The whiteness (L value) is measured with a high-speed colorimeter manufactured by Murakami Shiken. In place of the transparency with a △ L minus L ₂ values of board from L ₁ values of white plate shown in Table 5.

(C) Measurement of glossiness The reflectance at 75 ° was measured with a GROSS METER type manufactured by Nippon Denshoku Industries Co., Ltd., and the average value of three measurements is shown in Table 5.

(result) As is clear from Table 5, the product 2 of the present invention showed satisfactory results in any of the items.

On the other hand, in the comparative product 4 having different extender pigment powder, the glossiness is appropriate, but the whiteness is reduced and the opaqueness is obtained.

In Comparative product 5, the whiteness is moderate, but the glossiness is too large and the gloss is too strong.

As is clear from the above, the wrinkle-removing cosmetic composition of the present invention is excellent in use organoleptic properties such as elongation at the time of application, conformity to the skin, and a sense of discomfort (tactiness). It has good make-up and is more transparent.
It is a wonderful cosmetic with no luster.

Claims (2)

(57) [Claims] 1. Component (a) is selected from solid fat, component (b) is liquid oil, component (c) is silica, titanium oxide-coated pigment, inorganic silicon compound-coated pigment, and acrylic resin-coated pigment. Wherein the weight ratio of the component (a) to the component (b) is 2: 1 to 99: 1, and the weight of the component (a) and the component (b) is An oil-in-water type wrinkle-reducing cosmetic, wherein the weight ratio of the sum to the component (c) is from 2: 1 to 1: 4. 2. Component (a) is a solid fat, component (b) is a liquid oil, component (c) is silica, a titanium oxide-coated pigment, an inorganic silicon compound-coated pigment, and an acrylic resin-coated pigment. An extender pigment powder, four components of an auxiliary film forming agent as a component (d) as essential components, and a weight ratio of the component (a) to the component (b) is 2: 1 to 99: 1; )) The weight ratio of the component (b) to the component (b) and the component (c) is 2: 1 to 1: 4, and the component (a), the component (b) and the component (c) are (D) An oil-in-water type wrinkle-removing cosmetic, which is larger than the component.