JP2020011997A - Skin patch - Google Patents

Abstract

To provide a skin patch that is like a film and easy to use, instead of sticky, creamy or liquid ones.SOLUTION: A skin patch has a transparent or translucent, flexible support film, and an adhesive layer on the support film, the support film including an ultraviolet absorbing agent and/or ultraviolet scattering agent.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a concealer patch for hiding skin defects and making the skin look white and beautiful. Further, the present invention relates to a concealer patch which incorporates an ultraviolet absorber and a beauty component to realize skin whitening.

  Concealer is a foundation for covering skin troubles, and is a cosmetic that spot-corrects spots, freckles, moles, acne scars, and bears under the eyes that give an unhealthy impression. Stick-type, cream-type, and liquid-type concealers are often used.

  The concealer contains a large amount of pigment in addition to the adhesion and emollient properties of a normal foundation in order to provide coverage. When using a concealer, it is necessary to apply plenty of base material and emulsion like a foundation and prepare a base. After applying the base, apply the paint so that it lays down and pat it lightly with a material that does not leave any fiber residue, such as the stomach of a finger or a cotton or cotton swab. Although this concealer is simple at first glance, it is difficult to get a natural skin texture when you actually try it, and it often does not work well for amateurs at home. Further, the conventional concealer has a function of only hiding spots and freckles, and there is no product that incorporates a beauty component in the product and has a function of whitening such as spots.

  Materials having a concealer effect include wax, volatile oil and non-volatile oil (Patent Document 1), titanium-coated pigment, metal soap-coated pigment and highly coated pigment (Patent Document 2), volatile silicone oil, and aqueous solution. Ingredients, white pigments, glitter powders and the like (Patent Document 3), talc, opaque powder, titanium mica, liquid fat and solid fat (Patent Document 4) and the like have been reported. Also, certain peptides (Patent Document 5), supramolecular polymers of polyalkene bases (Patent Document 6), and film-forming polyhydroxystyrene polymers (Patent Document 7) have been proposed.

JP 2011-162463 A JP 2010-503725 A JP 2005-298482 A JP-A-2000-327532 JP-T-2013-508322 JP 2010-120940 A JP 2000-229813 A

  The problem to be solved by the present invention is to solve the inconvenience of using a stick type, cream type or liquid type concealer currently on the market, and anyone can easily hide spots, freckles, acne marks and bears, etc. It is to provide a new patch type concealer cosmetic. It is still another object of the present invention to provide a cosmetic product which realizes whitening of the skin by blending an ultraviolet absorber and a cosmetic ingredient with a patch support film or an adhesive.

A concealer patch according to the present invention made to solve the above-mentioned problem has a feature that the surface of a transparent or translucent flexible support film has a flesh coloration and is provided with an adhesive layer.
That is, the concealer patch according to the present invention includes a transparent or translucent flexible support film, and an adhesive layer laminated on the support film, and has a skin color on at least one surface of the support film. Characterized by having a coloring of

  In the present invention, a cosmetic patch having a concealer effect is referred to as a concealer patch, and the skin color includes a dark to light skin color, and further includes a skin color close to white to white.

  A feature of the present invention resides in that the surface of the support film of the concealer patch is colored using a printing technique.

The concealer patch can be produced by mixing a dye or pigment with a support film raw material to form a film, as long as the color is uniform. However, when it is desired to partially change the skin color, it cannot be manufactured by this method. For example, a concealer patch in which the central part is dark skin color and the peripheral part is light skin color, and the skin color gradually becomes lighter from the central part toward the peripheral part, that is, a concealer patch colored with gradation cannot be manufactured by this method. A concealer patch having a partially changed skin color can be manufactured only by printing coloring on a support film as in the present invention.
Therefore, the method for producing a concealer patch according to the present invention includes a step of coloring the surface of a transparent or translucent flexible support film to a flesh color using a printing technique, and forming an adhesive layer on the support film. And a step of performing.

  The concealer patch is used to hide facial stains, acne, and the like by coloring, but it is desirable that the concealer patch not be uniformly colored. Because facial spots, freckles, acne scars and bears are localized, they can not be hidden unless they are dark to some extent, but if they are even dark, the existence of the concealer patch itself gives an unnatural impression . Therefore, it is desirable that the central part has a slightly darker skin tone and the peripheral part has a lighter natural texture.

Various printing methods can be considered to make the coloring of the surface of the support film non-uniform or to impart a gradation to the coloring. In the present invention, three methods have been tried.
(1) Coloring is planar. The term “flat skin coloration” means that at least one skin color region is provided on the surface of the support film. The configuration may be such that the coloring surface is substantially planar and uniform, and the color density may vary depending on the location.
(2) A straight, curved, wavy, or polygonal flesh-colored line is used.
(3) Using a large number of dots, changing the size and density of the dots.
Of course, two or three of the three methods may be combined.

In the case of using planar flesh coloration, it is preferable to change the color depth depending on the location. In particular, it is preferable that the coloration at the center is deeper, the coloration at the periphery is lighter, and gradation is applied.
If the periphery of the concealer patch is made colorless so that it can be seen through the ground, the presence of the concealer patch can be made even less noticeable.

When using flesh-colored lines, two flesh-colored lines can intersect at right angles. Alternatively, the three flesh-colored lines may be shifted by 60 ° from each other and intersect. The number of skin color line directions may be increased. Thus, a plurality of flesh-colored lines may be provided, and in that case, it is preferable that at least two of the plurality of flesh-colored lines intersect.
Here, the shape of the line can be a straight line, a curve, a wavy line, a polygonal line, or the like, and is not limited thereto. Note that the term “skin color line” or “skin color line” includes straight lines, curves, wavy lines, broken lines, and the like.

  Further, a closed curve such as a circle or an ellipse may be combined. The centers may be concentric, or the closed curves may intersect each other.

  The interval and the thickness of the flesh-colored lines may not be uniform. In order to give a gradation, the coloring of the flesh-colored line may be made darker at the center and lighter at the periphery.

  By using a combination of lines, a colorless portion can be provided, whereby the background can be seen through, and the presence of the concealer patch can be made less noticeable.

When a large number of dots are used, a gradation effect can be obtained by changing the size and density of the dots or changing the density of the skin color. For example, the size of at least one dot or the darkness of the skin color among a large number of skin color dots may be different from other dots. Further, a large number of flesh-colored dots may be arranged so as to have a region having a relatively high density and a region having a relatively low density.
The dot may have any shape such as a circle, an ellipse, a square, and a triangle. Further, the shapes of the dots need not always be the same, and the distribution of the dots does not necessarily have to be regular. It should be noted that the term “multiple dots” includes dots of any shape such as a circle, an ellipse, a square, and a triangle.

  If a large number of dots are used, a colorless portion can of course be provided.

  In order to apply a gradation to the skin color of the concealer patch, a flat skin color coloring (skin color region) may be combined with a crossing skin color line. At this time, it is preferable to make the central part darker and the peripheral part lighter in planar flesh coloration (skin color region). If the skin color in the planar coloring (skin color area) is set to a skin color close to white, it is well balanced with the intersecting skin color line so as to be less noticeable as a whole.

  When gradation is applied to the skin color of the concealer patch, a flat skin coloration (skin color region) and a large number of dots may be used.

  The surface of the support film on which the flesh color is printed and the surface provided with the pressure-sensitive adhesive layer may be the same surface or different surfaces of the film. Alternatively, a flesh color may be printed on both surfaces of the film.

  As the flexible transparent or translucent support film, a polyolefin film such as polyethylene or polypropylene, or an ethylene-vinyl acetate copolymer, polyurethane or nylon film can be used. These may be used alone or in combination.

  Polyurethane films are most preferred in terms of breathability and flexibility. The thickness is preferably 3 to 100 μm. If the thickness is less than 3 μm, the mechanical strength may be insufficient, and it may be inconvenient to manufacture or stick to the skin. If the thickness is more than 100 μm, the skin may be too thick to cause discomfort to the skin. More preferably, the thickness is 5 to 20 μm.

  When the polyurethane film is lined, it is much easier to handle during processing and use. The backing film is called a process paper, a carrier or a backing paper.

  For the pressure-sensitive adhesive layer of the concealer patch, an acrylic pressure-sensitive adhesive, a rubber-based pressure-sensitive adhesive, a urethane-based pressure-sensitive adhesive, or a silicon-based pressure-sensitive adhesive can be used. If necessary, a plasticizer such as octyldodecyl lactate or glycerin may be added.

  The thickness of the pressure-sensitive adhesive layer is preferably 5 to 100 μm. If it is thinner than 5 μm, the adhesive strength may be insufficient, and if it is thicker than 100 μm, the air permeability may be low, and it may not be suitable for long-time application. A more preferred pressure-sensitive adhesive layer thickness is 5 to 30 μm.

The support film and / or the adhesive layer of the concealer patch may contain an ultraviolet absorber, an ultraviolet scattering agent, a cosmetic ingredient or a skin drug to expand the adaptability of the concealer patch. These may be used alone or in combination of two or more.
Examples of the ultraviolet absorber include organic ultraviolet absorbers such as benzophenone derivatives such as 2-hydroxybenzophenone and 2-hydroxy-4-methoxybenzophenone, paraaminobenzoic acid and its derivatives, and acid derivatives such as salicylhomonentyl, and ultraviolet scattering agents. UV scattering agents such as titanium oxide and zinc oxide can be used.
Examples of cosmetic ingredients include vitamin C and its derivatives (eg, magnesium L-ascorbyl phosphate, ascorbyl tetrahexyldecanoate, ascorbyl palmitate 3Na), kojic acid, retinoic acid, and derivatives thereof, and whitening ingredients such as hydroquinone; Examples include anti-wrinkle components such as vitamin A and its derivatives, α-riboic acid, adenosine, and α-hydroxy acid. Further, an acne therapeutic component such as salicylic acid and an anti-inflammatory component such as glycyrrhetinic acid (salt) may be blended. Further, BHT, vitamin E, and derivatives thereof (for example, tocopherol acetate) may be added as a stabilizer.

If the concealer patch is circular, it is easier to use if the diameter is larger than 5 mm. Because it is mainly applied to the face, feet and arms, it is about 100 cm ² at most. As the shape of the concealer patch, various shapes such as a circle, an ellipse, a rectangle with rounded corners, a square, a diamond shape, a face shape, and a magatama shape can be used.
The skin whitening care makeup method according to the present invention is a skin whitening care makeup method using a concealer patch configured according to the present invention, wherein the adhesive layer contains a cosmetic ingredient and / or a skin drug. It is characterized by having.
The skin acne care makeup method according to the present invention is a skin acne care makeup method using a concealer patch configured according to the present invention, wherein the adhesive layer contains a cosmetic ingredient and / or a skin drug. It is characterized by having.

  The concealer was patch-type instead of stick-type, cream-type, or liquid-type, making it easier to attach to the skin. Even non-experts can easily cover skin imperfections such as spots and freckles and feel the natural texture of the skin.

  As a result of printing the skin color of the concealer patch on the support film by printing the skin color, it became easy to give gradation to the skin color. As a result, the use of the concealer became less apparent in appearance.

  As a result of printing the flesh color of the concealer patch on the support film by printing the flesh color, a colorless portion could be provided, and the degree of freedom of the coloring format was increased. As a result, it became possible to express the skin color of the concealer patch using intersecting lines and dots instead of uniform coloring. The background was transparent from the uncolored part, giving a more natural feel.

FIG. 1 is a diagram of four types of concealer patches in which a skin color is printed and colored on one side of a translucent film. FIG. 2 is a diagram of four types of concealer patches in which planar flesh-colored (skin-colored areas) and linear flesh-colored lines overlap.

Examples of the present invention will be described below, but the present invention is not limited to the examples.
Although all embodiments of the present invention use circular concealer patches, it is clear that the present invention is equally applicable to patches of other shapes, such as elliptical or quadrilateral.
The planar coloring, flesh color lines, and flesh color dots in the figure are all printed in flesh color except for the outline (circle), but are represented in gray on the drawing.

(Example 1)
Four types of concealer patches shown in FIG. 1 were prototyped. Example 1 shown in FIG. 1A is a full-surface printing patch in which a flesh color is printed on the entire surface. Example 2 shown in FIG. 1B is a partial print patch, in which a dark skin color is printed at the center, but the periphery is colorless. No gradation is provided on the print. Example 3 shown in FIG. 1C is a mesh-like printing patch, in which a group of straight lines that intersect with each other is printed in a mesh. The color is darker at the center and lighter toward the periphery, with gradation. Example 4 shown in FIG. 1D is a dot-shaped printing patch, which has an overall gradation by printing circular dots densely in the center and sparsely in the peripheral portion. These concealer patches are circular with a diameter of 15 mm.

These concealer patches consist of four layers. (1) Process paper (40 μm thick OPP), (2) Urethane support film (7 μm thick), (3) Adhesive layer (HiPAS10 adhesive, cosmetic (Manufactured by D. Pharmaceutical Co., Ltd.), thickness: 15 μm), and (4) release paper (weight per unit area: 100 g / m ² , coated with silicone). One side of the urethane support film is printed with flesh color.

  At the time of use, first, the parts (1) to (3) are peeled off from the release paper (4) and attached to the skin, and then the process paper (1) is peeled off.

  One of each of the four concealer patches (FIGS. 1A to 1D) was applied to the lower arm skin of five volunteers, and a "conspicuousness test" was performed. In the test, four types of concealer patches were applied to five volunteers, and it was determined whether or not the patches could be visually recognized from a distance of 50 cm.

  The full-surface printing patch (a) was clearly recognized from a distance of 50 cm for all five persons. The partial print patch (b) could be recognized only after all the five people were pointed to the application site. The mesh-like printing patch (c) and the dot-like printing patch (d) could be recognized only after two of the five persons pointed out the sticking part, but the remaining three persons could point out the sticking part. I could not recognize it. From this test, it can be concluded that what is printed in the form of a mesh or dot is less noticeable than the other two types, and is superior in "inconspicuousness".

(Example 2)
A concealer patch in which planar flesh coloration and linear flesh color lines overlap was prototyped. The two-dimensional skin coloration was dark in the center and gradually faded toward the periphery. Straight skin color lines were created with gradation and those without gradation, and compared.

The following four types were prototyped. Although FIG. 2 is drawn in gray, the actual color is skin tone.
Example 5: In the flat skin color coloring, the skin color becomes gradually lighter from the central point toward the periphery. A straight skin color line has no change in color density. This example is shown in FIG.
Example 6: Planar flesh coloration has a central portion with a uniform thickness of 3 mm in diameter, and the flesh color gradually fades from there toward the periphery. The straight skin color line has no change in color density. This example is shown in FIG.
Example 7: In the planar skin color coloring, there is no central portion having a uniform density, and the skin color gradually decreases from the center to the periphery. The color of the straight skin color line gradually decreases from the center toward the periphery. This example is shown in FIG.
Example 8: Planar white coloring has a central portion of 3 mm in diameter and uniform density, and the white color gradually decreases from there toward the periphery. The color of the straight skin color line becomes gradually lighter from the center toward the periphery. This example is shown in FIG.

  Comparing the four types shown in FIG. 2, the example in which the color of the linear skin color line becomes gradually lighter from the center toward the periphery is less noticeable, and it is visually recognized that the concealer patch is attached from a distance slightly away. Hateful.

(Example 3)
Based on the basic configuration of the concealer patch of Example 3 in FIG. 1C, a functional concealer patch as shown in Table 1 was prepared by incorporating valuable components such as an ultraviolet absorber and a cosmetic component.

  A urethane film (Cosmed Pharmaceutical Co., Ltd.) was used as the support film, and HiPAS10 (Cosmed Pharma Co., Ltd.) was used as the adhesive. As shown in the table, the valuable component is contained in the support film or the pressure-sensitive adhesive layer, and the amount of the valuable component is shown in% by weight. These valuable components were purchased from Nakarai Tesque (Kyoto).

  The stain evaluation method was applied to the stain part of three volunteers, and evaluated by self-report after applying once a day for four weeks. The evaluation is the average of the following scores.

Score 0 No change
Score 7 Completely disappeared

(Example 4)
Using the same flesh color coloring as in Example 8 of FIG. 2 (d) and the same adhesive as in Example 1, a functional concealer patch was prepared by incorporating valuable components such as plasticizers and cosmetic ingredients into the adhesive as shown in Table 2. Created. The support film was a urethane film having a thickness of 10 μm, and contained 2% by weight of 2-hydroxybenzophenone.

The evaluation results of this concealer patch were as follows.
1. Ultraviolet ray shielding UVA 97.2% shielding UVB 98.6% shielding 2. Inconspicuousness In the test results of three volunteers, the patch could not be recognized even if the patch site was pointed out.

Claims (5)

A transparent or translucent flexible support film,
Comprising a pressure-sensitive adhesive layer laminated on the support film,
A skin patch, wherein the support film contains an ultraviolet absorber and / or an ultraviolet scattering agent.   The skin patch according to claim 1, wherein the adhesive layer contains a cosmetic ingredient and / or a skin drug.   The skin patch according to claim 1 or 2, wherein the material of the support film is at least one material selected from the group consisting of polyurethane, polyethylene and polypropylene.   The skin patch according to any one of claims 1 to 3, wherein the support film contains 2% by weight of 2-hydroxybenzophenone. The material of the support film is polyurethane,
The skin patch according to any one of claims 1 to 4, wherein the thickness of the support film is 3 to 100 µm.