JPWO2020026529A1 - Pseudo-skin film, its manufacturing method and usage, and a cosmetic kit having the pseudo-skin film. - Google Patents

Abstract

Provided is a pseudo-skin film that can improve the problem of air accumulation at the time of sticking and after sticking and can give a natural finish. The pseudo-skin film of the present invention has a rubber hardness of 20 or less, a film thickness of 600 μm or less, and through holes at a ratio of 3 to 500,000 pieces / cm2 by a durometer type A hardness tester conforming to JIS K6253. It is arranged and the area of the through hole is 70 to 283000 μm 2 / piece.

Description

The present invention relates to a pseudo-skin film, a method for producing and using the pseudo-skin film, and a cosmetic kit having the pseudo-skin film.

Wrinkles increase as one of the phenomena of skin aging as we get older, but from the viewpoint of cosmetology and the like, there is a great deal of interest in preventing and improving wrinkles, especially in women. In particular, the lips can be mentioned as a part where the shape change is remarkable in the troubles of the skin including aging. Problems related to the lips include roughness or dullness of the lips, as well as a large number of wrinkles or a decrease in the feeling of plumpness with aging.

Patent Documents 1 and 2 disclose a lip patch having a support layer, an adhesive layer, and a separator layer laminated in this order.

Patent Document 3 describes a base material to be attached to the skin, which is a base material made of a flexible material containing polyurethane, polyolefin, or polyacrylate, and a styrene resin, epoxy resin, or acrylic, which is formed on the base material and is formed on the base material. An image-forming layer containing a resin and supporting a coloring material on the image-forming layer, on which a modified color image of the skin is printed, and a hot-melt adhesive formed in contact with the image-forming layer. A cosmetic laminated structure that conceals skin imperfections is disclosed, which comprises an agent layer and a water permeable protective layer formed on the hot melt adhesive layer.

Japanese Unexamined Patent Publication No. 2015-168626 International Publication No. 2015/072021 Japanese Patent No. 5677303

When the lip patch and the structure described in Patent Documents 1 to 3 are applied to the skin, there is a problem that air pooling due to poor sticking or cutaneous respiration occurs between these members and the skin. was there.

Therefore, an object of the present invention is to provide a pseudo-skin film capable of improving the defect of air accumulation at the time of application and after application and exhibiting a natural finish.

<Aspect 1>
The rubber hardness by the durometer type A hardness tester conforming to JIS K6253 is 20 or less.
The film thickness is 600 μm or less,
Through holes are arranged at a ratio of 3 to 500,000 pieces / cm ^{2, and}
The area of the through hole is 70 to 283000 μm ² / piece.
Pseudo skin film.
<Aspect 2>
The film according to aspect 1, wherein the film thickness is 50 to 200 μm.
<Aspect 3>
The film according to aspect 1 or 2, wherein the material constituting the pseudo film is urethane rubber, olefin rubber, silicone rubber, acrylic rubber, natural rubber, or α-gel.
<Aspect 4>
The film according to any one of aspects 1 to 3, which is used for attachment to a body surface.
<Aspect 5>
The film according to aspect 4, wherein the body surface is skin on the face surface, skin on the ear surface, or nails.
<Aspect 6>
The film according to any one of aspects 1 to 5, further comprising a release sheet.
<Aspect 7>
The film according to any one of aspects 1 to 6, which is non-adhesive.
<Aspect 8>
A cosmetic kit comprising the film according to any one of aspects 1 to 7.
<Aspect 9>
The cosmetic kit according to aspect 8, further comprising an adhesive.
<Aspect 10>
The cosmetic kit according to aspect 9, wherein the adhesive is at least one selected from polybutene and polyisobutene.
<Aspect 11>
The cosmetic kit according to aspect 9 or 10, wherein the adhesive further contains a moisturizing ingredient.
<Aspect 12>
A film is formed by injection molding, calendar molding, or compression molding, and the film is irradiated with a laser to form through holes.
The method for producing a pseudo-skin film according to any one of aspects 1 to 7.
<Aspect 13>
A method for using a pseudo-skin film, wherein the pseudo-skin film according to any one of aspects 1 to 7 is attached to a body surface.
<Aspect 14>
The method of use according to aspect 13, wherein the pseudo-skin film is attached to the body surface after applying the adhesive to the body surface.
<Aspect 15>
The method of use according to aspect 13 or 14, wherein a gloss, lipstick, nail polish or liquid foundation is applied to the pseudo-skin film after being attached to the body surface.

According to the present invention, it is possible to provide a pseudo-skin film that can improve the problem of air accumulation during and after application and can exhibit a natural finish.

Hereinafter, embodiments of the present invention will be described in detail. The present invention is not limited to the following embodiments, and can be variously modified and implemented within the scope of the gist of the invention.

The pseudo-skin film of the present invention has a rubber hardness of 20 or less, a film thickness of 600 μm or less, and a ratio of ^{3 to 500,000 through holes / cm 2 by a durometer type A hardness tester conforming to JIS K6253.} And the area of the through hole is 70 to 283000 μm ² / piece.

According to the pseudo-skin film of the present invention, it is possible to improve the problem of air accumulation at the time of sticking and after sticking, and to exhibit a natural finish.

Although not limited by the principle, the principle of action that the pseudo-skin film of the present invention can improve the problem of air accumulation at the time of sticking and after sticking and give a natural finish is as follows. I think there is.

Since the pseudo-skin film of the present invention has a specific hardness, it can easily follow uneven parts such as wrinkles on the skin or the movement of the skin, and has a specific thickness. We believe that it is possible to provide a plump appearance and other appearance without any discomfort.

Since the pseudo-skin film of the present invention has through holes of a specific size formed in a specific ratio, it can exhibit breathability without adversely affecting the naturalness of appearance, and as a result, it can exhibit breathability. It is believed that it is possible to reduce the generation of air (air bubbles) accumulation due to skin respiration during or after application, and to maintain a natural finish. Further, since the improvement of the air pool also leads to an increase in the contact area between the film and the skin, it is considered that the adhesion of the film to the skin can be improved.

In addition, the pseudo-skin film of the present invention having a through hole of a specific size has an excellent balance between breathability and an occlusion effect (effect of preventing water from escaping from the skin), and therefore, the film is applied to the skin. In that case, it is considered that the dryness or roughness of the skin can be improved.

The specific through holes formed in the pseudo-skin film improve the adhesion of the pseudo-skin film. It is considered that this is because, for example, the adhesive applied to the lips penetrates into the through hole and easily adheres to the film. Further, for example, even when the film is formed of a material such as silicone rubber, the adhesiveness to the film is increased, so that the adhesiveness of a coating agent such as gloss, lipstick, nail polish, or liquid foundation is also improved.

Further, since the pseudo-skin film of the present invention has a specific through hole, the flexibility can be improved and the hardness can be reduced as compared with the film having no such through hole. I believe. As a result, it becomes easy to expand and contract even on a part having a relatively large movement such as lips, so that problems such as twisting or peeling can be reduced. Further, by forming a specific through hole, even a material that is relatively hard and is not suitable for a pseudo-skin film in the past can be used as a material for such a film.

《Pseudo-skin film》
<Rubber hardness>
The rubber hardness of the pseudo-skin film of the present invention by a durometer type A hardness tester conforming to JIS K6253 is 20 or less. The hardness is preferably 15 or less or 10 or less from the viewpoint of followability to the skin, and is preferably 1 or more, 2 or more, or 3 or more from the viewpoint of strength or the like. Here, the said rubber hardness is a test piece having a thickness of 6.0 mm or more prepared by using a material constituting the pseudo-skin film, or a test piece having a thickness of 6.0 mm or more prepared by laminating pseudo-films. The rubber hardness in can be intended.

<Film thickness>
The film thickness of the pseudo-skin film of the present invention is 600 μm or less. The film thickness of the film can be appropriately adjusted according to the site to which the film is attached, the purpose of use, etc., and is not limited to the following, but is, for example, 500 μm or less, 400 μm or less, 300 μm or less, or 200 μm or less. It can also be 50 μm or more, 70 μm or more, or 100 μm or more.

In particular, when the film is used for the purpose of making the lips look plump for a part that moves frequently such as the lips, the film thickness can be 300 μm or less, or 200 μm or less, and also. , 50 μm or more, 70 μm or more, or 100 μm or more.

Here, the film thickness was calculated by measuring the film thickness of an arbitrary part of the pseudo-skin film five times using a precision thickness measuring machine (PEACOCK dial thickness gauge 0.01 mm type manufactured by Ozaki Seisakusho Co., Ltd.). It is an average value, and when the pseudo-skin film includes a release sheet, the film thickness is intended excluding the thickness of the release sheet.

In the pseudo-skin film of the present invention, the film thickness may be varied in the film surface depending on the application site or the purpose of use. For example, when the film is applied to the lips, the central portion of the film may be thickened and the peripheral portion may be thinned. With such a configuration, the boundary between the skin and the film can be made inconspicuous, and the fluffy feeling of the lips can be further improved. In this case, the film thickness is an average value measured in the same manner as above in the thickest portion (thickest portion) of the pseudo-skin film.

Depending on the application site, the pseudo-skin film may have slit-shaped cut lines or the like on the surface to be attached to the skin such as the lips or the eyes in order to easily follow the movement of wrinkles or skin. ..

<Through hole>
In the pseudo-skin film of the present invention, through holes are arranged at a ratio of ^{3 to 500,000 pieces / cm 2} , and the through holes have an area of ^{70 to 283,000 μm 2 / piece.}

(Ratio of through holes)
^{The ratio of through holes is 3 pieces / cm 2} or more, 5 pieces / cm ² or more, 10 pieces / cm ² or more, 30 pieces / cm ² or more from the viewpoint of improving air accumulation, permeability, flexibility, etc. , 50 pcs / cm ² or more, 100 pcs / cm ² or more, or 1000 pcs / cm ² or more, and 500,000 pcs / cm ² or less, 450,000 pcs / cm ² or less, 400,000 pcs / cm ² or less , 200,000 pieces / cm ² or less, 100,000 pieces / cm ² or less, or 50,000 pieces / cm ² or less.

The through holes may be uniformly or non-uniformly distributed over the entire surface of the pseudo-skin film, or may be uniformly or non-uniformly distributed over a part of the pseudo-skin film as long as they are formed in the above proportions. You may be. Here, when a through hole is formed in a part of the pseudo-skin film, the above ratio may be satisfied at one or more, two or more, or three or more.

(Area of through hole)
^{The area of the through hole can be 70 μm 2} / piece or more, 80 μm ² / piece, 100 μm ² / piece, or 150 μm ² / piece or more from the viewpoint of improving air accumulation, penetrability, flexibility, and the like. Further, it can be 283000 μm ² / piece or less, 233000 μm ² / piece or less, 183000 μm ² / piece or less, or 133000 μm ² / piece or less. Here, the area of the through hole is intended to be the smallest area of the area of the through hole on the upper surface and the bottom surface of the pseudo-skin film. For example, when the through hole has a shape like a truncated cone in which the upper part of the cone is cut parallel to the bottom surface, it refers to the area of the upper surface of the cone and the cylindrical shape in which the areas of the upper surface and the bottom surface are equal. In the case of, it refers to the area of either the upper surface or the bottom surface.

(Shape of through hole)
The shape of the through hole is not particularly limited as long as the performance such as improvement of air accumulation is exhibited, but for example, a substantially columnar shape, a substantially elliptical columnar shape, and a substantially angular columnar shape having a polygonal bottom surface. , A substantially truncated cone, a substantially elliptical cone, a substantially angular cone with a polygonal bottom surface, and the like. Above all, from the viewpoint of productivity, improvement of air accumulation, etc., it is preferable that the shape is substantially columnar or substantially truncated cone. Here, "omitted" means that variations caused by manufacturing errors and the like are included, and it is intended that fluctuations of about ± 20% are allowed.

When the shape of the through hole is substantially columnar or substantially conical cone, the minimum diameter of the substantially circular portion of the through hole on the upper surface and the bottom surface of the film is set from the viewpoint of improving air accumulation and the like. It is preferably 0.01 mm or more, 0.02 mm or more, or 0.03 mm or more, and preferably 0.60 mm or less, 0.50 mm or less, or 0.40 mm or less.

<material>
The material of the pseudo-skin film of the present invention may be any material as long as it has a rubber hardness of 20 or less, and is not limited to the following, but for example, olefin rubber, urethane rubber, silicone rubber, acrylic rubber. Synthetic rubber such as α-gel, gel-like material capable of exhibiting elasticity such as α-gel, natural rubber and the like can be mentioned. Of these, silicone rubber is preferable from the viewpoint of skin safety, durability, transparency and the like. These materials can be used alone or in combination of two or more. The pseudo-skin film may also have a single layer or laminated structure of these materials.

Silicone rubber, which is a preferable material, is not limited to the following, but is, for example, an addition (hydrosilylation) reaction-curable silicone rubber composition or organic peroxide curing from the viewpoint of being able to be molded in a short time by heating. The one obtained by curing the silicone rubber composition of the mold is preferable.

As the addition reaction curing type silicone rubber composition, a known composition can be used, for example, an alkenyl group-containing organopolysiloxane having two or more alkenyl groups in one molecule represented by a vinyl group. , Organohydrogenpolysiloxane having 2 or more, preferably 3 or more SiH groups (usually, an amount such that the molar ratio of SiH groups to alkenyl groups is 0.5 to 4), and platinum or platinum compounds. Those containing a platinum group metal-based addition reaction catalyst (usually 1 to 1000 ppm with respect to an alkenyl group-containing organopolysiloxane) are used.

Further, as the organic peroxide curing type silicone rubber composition, a known composition can be used. For example, an organopolysiloxane having two or more alkenyl groups in one molecule can be used as a curing agent. An organic peroxide blended in an effective amount for curing (usually 1 to 10 parts by mass with respect to 100 parts by mass of the above-mentioned organopolysiloxane) is used.

As the silicone rubber composition, a commercially available product can be used. For example, LIMS (trademark) (liquid silicone rubber injection molding system) manufactured by Shin-Etsu Chemical Co., Ltd., which is an addition reaction curing type silicone rubber composition, among others, KE-1950-10A / B, KE-1950-20A / B, KE-2004-3A / B, KE-2004-5A / B and the like can be mentioned.

(Arbitrary ingredient)
The pseudo-skin film of the present invention includes various colorants such as pigments and dyes, fillers, stabilizers, moisturizers, ultraviolet absorbers, ultraviolet scattering agents, lubricants, etc., as long as the effects of the present invention are not affected. Additives can be added as appropriate. It is preferable that the transparent pseudo-skin film does not contain a colorant because it becomes less noticeable after being applied to the skin.

<Arbitrary constituent layer>
The pseudo-skin film of the present invention may optionally have a constituent layer such as an adhesive layer, an adhesive layer, and a release sheet. In particular, since the pseudo-skin film of the present invention has a thin thickness of 600 μm or less, it is preferable to provide a release sheet on one side or both sides of the film from the viewpoint of protection or handleability.

The material of the release sheet is not particularly limited, and examples thereof include polyolefins such as polyethylene and polypropylene, polyester such as polyethylene terephthalate, and paper from the viewpoint of handleability, and the surface of the release sheet. May be subjected to a mold release treatment such as silicone. Such a release sheet can be brought into close contact with the pseudo-skin film by an electrostatic action.

In addition, the adhesive layer and the adhesive layer are likely to cause a burden on the skin or a feeling of strangeness, reduce the ability to follow wrinkles, etc., and may deteriorate the handleability at the time of sticking. The skin film is preferably a non-adhesive film that does not have these layers.

<Application site of pseudo-skin film>
The pseudo-skin film of the present invention can be applied to any part of the body on the surface of the skin, that is, on the surface of the body, and is not limited to the following, but for example, the face (lips,). It can be appropriately attached to the skin surface such as (eyes, nose, etc.), ears, hands, arms, legs, legs, chest, lower abdomen, back, etc. When a pseudo-skin film is attached to a scratched skin surface, the film follows the unevenness of the scratch and makes the scratch inconspicuous. Here, the skin also includes nails and the like in which the keratin of the epidermis of the skin is changed and hardened.

The pseudo-skin film of the present invention has improved air accumulation after application, is less noticeable, has excellent adhesion, and easily follows irregularities on the skin surface such as wrinkles. Among the above-mentioned application sites, it is preferable to attach it to the face (particularly, lips, eyes, nose), ears, or nails.

《Makeup kit》
The pseudo-skin film of the present invention can be provided as a cosmetic kit having such a film. In addition to the pseudo-skin film, the cosmetic kit may include, for example, any member for facilitating the attachment of the film to the skin or for further applying makeup.

Examples of such an arbitrary member include an adhesive, a cutter, scissors, a gloss, a lipstick, a nail polish, a liquid foundation, a mirror and the like. Among them, the adhesive used by applying it to the skin surface can improve the adhesion of the pseudo-skin film to the skin. Therefore, a non-adhesive pseudo-skin film having no adhesive layer or an adhesive layer is used. Especially preferred when used.

<Adhesive agent>
The adhesive may be any agent that has less burden on the skin and can improve the adhesion of the pseudo-skin film to the skin, and is not limited to, but is limited to, for example, polybutene and polyisobutene. At least one selected from can be used. From the viewpoint of adhesion, durability, etc., the number average molecular weight of polybutene can be 1000 or more or 1500 or more, and can be 5000 or less or 4000 or less, and the number average molecular weight of polybutene can be set to 5000 or less or 4000 or less. It can be 8000 or more, 9000 or more, or 10000 or more, and can be 30,000 or less, 25000 or less, or 22000 or less. Here, the number average molecular weight is intended to be a polystyrene-equivalent number average molecular weight in gel permeation chromatograph measurement.

As the adhesive in the present invention, a commercially available product can be used. For example, as polybutene, deodorizing polybutene-P200SH (manufactured by Nikko Rika Co., Ltd.) can be used, and as polyisobutene, Oppanol (trademark) B12SFN / 12N, Oppanol (trademark) B13SFN, Oppanol (trademark) B14SFN / 14N, Oppanol ™ B15SFN / 15N (above, manufactured by BASF) and the like can be used.

The adhesive may contain a moisturizing component. As the moisturizing ingredient, one or more of those usually used in cosmetics can be used, for example, polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, dipropylene glycol, xylitol, sorbitol, mulch. Examples thereof include toll, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, sodium lactate, pyrrolidone carboxylic acid, short chain soluble collagen and the like.

The blending ratio of the moisturizing component is preferably 0.01% by mass or more, 0.05% by mass or more, or 0.1% by mass or more, and 10% by mass or less, 9% by mass, based on the total amount of the adhesive. It is preferably less than or equal to 8% by mass or less.

<< Manufacturing method of pseudo-skin film >>
The pseudo-skin film of the present invention can be produced by a known method. Specifically, for example, after forming a film by a compression molding method, an injection molding method, an injection molding method, a calendar molding method, a compression molding method, or the like, the film is penetrated by applying laser irradiation or punching. Pore can be formed and a pseudo-skin film can be obtained. Above all, from the viewpoint of productivity, accuracy and the like, it is preferable to form a film by an injection molding method, a calendar molding method or a compression molding method, particularly a calendar molding method, and it is preferable to form through holes by laser irradiation.

Further, the obtained pseudo-skin film can be appropriately cut into an arbitrary shape and size by the user, or can be pre-processed into an arbitrary shape and size by laser processing, punching or the like. You may.

The formation of the through hole and the processing of an arbitrary shape may be carried out on the pseudo-skin film alone, or may be carried out on the pseudo-skin film in a state where the release sheet is provided on one side or both sides.

<< How to use pseudo skin film >>
If a release sheet is present, the pseudo-skin film of the present invention can be used by appropriately removing the sheet and then attaching it to the skin surface (body surface) of the body described above.

For example, when it is attached to the lips, a pseudo-skin film prepared to have the shape and size of the lips is attached to the lips for use. In this case, if the film does not have an adhesive layer or an adhesive layer, the above-mentioned adhesive is applied to the lips with a finger, a brush, or the like, and then the pseudo-skin is applied, especially immediately after the application. When the film is attached to the lips, the adhesive penetrates into the through holes of the film, so that the adhesiveness can be further improved. As a result, it is possible to prevent problems such as twisting and peeling even on the lips that move relatively more than other parts.

A coating agent such as gloss, lipstick, nail polish, or liquid foundation may be separately applied to the pseudo-skin film of the present invention. Such a coating agent may be applied to the pseudo-skin film in advance, or may be applied after the film is attached to the skin surface.

Since the pseudo-skin film of the present invention has specific through-holes, the above-mentioned coating agent easily penetrates into the through-holes. As a result, even if the material is difficult to apply the coating agent, it can be used as a material for a pseudo-skin film.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

<< Examples 1 to 3, Comparative Examples 1 and 2 >>
The pseudo-skin films obtained by the formulations and manufacturing methods described in Examples 1 to 3 and Comparative Examples 1 and 2 were visually evaluated for various performances shown below. The results are summarized in Table 1.

When the pseudo-skin film was attached to the lips, the film was attached immediately after applying an adhesive containing polybutene (number average molecular weight 2650) and polyisobutene (number average molecular weight 16000) to the lips. Further, when the pseudo-skin film was attached to the evaluation skin model made of urethane, the pseudo-skin film was attached as it was without applying the adhesive to the skin model.

<Evaluation of pseudo-skin film>
(Sustainability of improvement of air pool)
A pseudo-skin film was attached to the lips of panelists in their 40s and 50s, and the state of the film after 3 hours was visually observed. The evaluation items are as follows. From this result, it is possible to evaluate the improvement sustainability of the air pool of the pseudo-skin film. Here, the improvement sustainability of the air pool is intended to improve the air pool at the time of pasting and after pasting (3 hours later).

A There are no bubbles at the sticking point.
B There are 1 to 3 bubbles at the sticking point.
C There are 4 or more bubbles at the sticking point.

(Natural finish)
A pseudo-skin film was attached to the lips of panelists in their 40s and 50s, and the state of the film was visually observed immediately after 3 hours had passed while eating and drinking. The evaluation items are as follows. From this result, the natural finish of the pseudo-skin film can be evaluated.

A The sticking part is inconspicuous and feels natural.
B The sticking part is a little noticeable, but it feels natural from a distance.
C The sticking part is conspicuous and does not feel natural.

(Gloss coating property)
A pseudo-skin film was attached to the lips of panelists in their 40s and 50s, and the state of the film after applying the gloss was visually observed. The evaluation items are as follows. From this result, the applicability of the gloss in the pseudo-skin film can be evaluated.

A No uneven coating is observed and it feels natural.
B Coating unevenness is observed on a part of the film, but it feels natural at a distance.
C Coating unevenness is observed and it feels unnatural.

(Applicability of liquid foundation)
A pseudo-skin film was attached to a urethane skin evaluation model (a buccal skin model manufactured by Beaulux), and the state of the film after applying the liquid foundation was visually observed. The evaluation items are as follows. From this result, the applicability of the liquid foundation in the pseudo-skin film can be evaluated.

A No pores are observed, and a uniform and natural finish can be obtained.
Although uneven coating and / or pores are observed in a part of the B film, a natural finish can be obtained from a distance.
C Coating unevenness and / or pores are observed, and the finish feels unnatural.

(Liquid foundation peeling off)
A pseudo-skin film was attached to a urethane skin evaluation model (Beulux cheek skin model), a liquid foundation was applied, and after about 1 minute had passed, the state of the film was visually observed by repeating tissue-off 10 times. did. The evaluation items are as follows. From this result, it is possible to evaluate the peeling property of the liquid foundation in the pseudo-skin film, that is, the adhesion of the foundation.

A No peeling of the liquid foundation is observed, and a natural finish is obtained.
Although the liquid foundation is peeled off in a part of the B film, a natural finish can be obtained from a distance.
C The liquid foundation is peeled off, and the finish feels unnatural.

<Example 1>
LIMS (trademark) KE-2004-3A / B manufactured by Shin-Etsu Chemical Co., Ltd. is put into a calendar device, rolled with multiple metal rolls while being heated and cured, and sandwiched between two release sheets. A silicone rubber film having a thickness of 100 μm was prepared.

Here, a silicone rubber film from which the release sheet was removed was laminated to prepare a test piece having a thickness of 6.0 mm. The rubber hardness of the test piece by the durometer type A hardness tester conforming to JIS K6253 was 3.

Next, a laser irradiator manufactured by Videojet Co., Ltd. was used to irradiate the obtained silicone rubber film with CO ₂ laser light to form through holes at a ratio of 1250 pieces / cm ^{2 on} the entire surface of the film to form a pseudo-skin film. Was produced. Here, the through hole has a substantially truncated cone shape, and the minimum area of the through hole on the film surface and the diameter of the substantially circular portion thereof are about 1300 ^{μm 2} and 40 μm.

<Example 2>
A pseudo-skin film of Example 2 was prepared in the same manner as in Example 1 except that the thickness of the pseudo-skin film was changed to 200 μm.

<Example 3>
A pseudo-skin film of Example 3 was prepared in the same manner as in Example 1 except that the thickness of the pseudo-skin film was changed to 300 μm.

<Comparative example 1>
A pseudo-skin film of Comparative Example 1 was prepared in the same manner as in Example 1 except that no through hole was formed in the pseudo-skin film.

<Comparative example 2>
A pseudo-skin film of Comparative Example 2 was prepared in the same manner as in Example 1 except that the thickness of the pseudo-skin film was changed to 700 μm.

<result>
As can be seen from the results in Table 1, the pseudo-skin films of Examples 1 to 3 have improved sustainability of air accumulation and natural finish as compared with the pseudo-skin films of Comparative Examples 1 and 2. Was confirmed.

Further, comparing the pseudo-skin film of Comparative Example 1 having a through hole and Example 1 having a through hole, the examples were in terms of the coatability of the gloss and the liquid foundation and the peeling property of the liquid foundation. It was confirmed that the pseudo-skin film of No. 1 was superior. It is considered that this is because the through holes of a predetermined size are arranged in the pseudo-skin film at a predetermined ratio, so that the gloss and the liquid foundation have invaded the through holes.

Claims (15)

The rubber hardness by the durometer type A hardness tester conforming to JIS K6253 is 20 or less.
The film thickness is 600 μm or less,
Through holes are arranged at a ratio of 3 to 500,000 pieces / cm ^{2, and}
The area of the through hole is 70 to 283000 μm ² / piece.
Pseudo skin film. The film according to claim 1, wherein the film thickness is 50 to 200 μm. The film according to claim 1 or 2, wherein the material constituting the pseudo film is urethane rubber, olefin rubber, silicone rubber, acrylic rubber, natural rubber, or α-gel. The film according to any one of claims 1 to 3, which is used for sticking to the body surface. The film according to claim 4, wherein the body surface is skin on the face surface, skin on the ear surface, or nails. The film according to any one of claims 1 to 5, further comprising a release sheet. The film according to any one of claims 1 to 6, which is non-adhesive. A cosmetic kit comprising the film according to any one of claims 1 to 7. The cosmetic kit according to claim 8, further comprising an adhesive. The cosmetic kit according to claim 9, wherein the adhesive is at least one selected from polybutene and polyisobutene. The cosmetic kit according to claim 9 or 10, wherein the adhesive further contains a moisturizing ingredient. A film is formed by injection molding, calendar molding, or compression molding, and the film is irradiated with a laser to form through holes.
The method for producing a pseudo-skin film according to any one of claims 1 to 7. A method for using a pseudo-skin film, wherein the pseudo-skin film according to any one of claims 1 to 7 is attached to a body surface. The method of use according to claim 13, wherein the pseudo-skin film is attached to the body surface after applying the adhesive to the body surface. The method of use according to claim 13 or 14, wherein a gloss, lipstick, nail polish or liquid foundation is applied to the pseudo-skin film after being attached to the body surface.