CN112512495A - Skin-simulating film, method for producing same, method for using same, and cosmetic kit having same - Google Patents

Skin-simulating film, method for producing same, method for using same, and cosmetic kit having same Download PDF

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Publication number
CN112512495A
CN112512495A CN201980050189.6A CN201980050189A CN112512495A CN 112512495 A CN112512495 A CN 112512495A CN 201980050189 A CN201980050189 A CN 201980050189A CN 112512495 A CN112512495 A CN 112512495A
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CN
China
Prior art keywords
skin
film
mimicking
membrane
less
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CN201980050189.6A
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Chinese (zh)
Inventor
富田希子
尾花敬和
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Shiseido Co Ltd
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Shiseido Co Ltd
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Publication of CN112512495A publication Critical patent/CN112512495A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/87—Polyurethanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q3/00—Manicure or pedicure preparations

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Cosmetics (AREA)

Abstract

The invention provides a method for improving gas retention during and after attachmentBad conditions and can present natural makeup skin simulation membrane. The skin-simulating film of the present invention has a rubber hardness of 20 or less as measured by a type A durometer in accordance with JIS K6253, a film thickness of 600 μm or less, and a number of layers of 3 to 500000 per cm2The ratio of (A) to (B) is set at a ratio of (B) to (C), and the area of the through-holes is 70 to 283000 [ mu ] m2A/one.

Description

Skin-simulating film, method for producing same, method for using same, and cosmetic kit having same
Technical Field
The present invention relates to a skin-mimicking film, a method of manufacturing and a method of using the same, and a cosmetic kit having the skin-mimicking film.
With aging, wrinkles are increasing as a phenomenon of skin aging, and especially women are concerned about the prevention and improvement of wrinkles from the viewpoint of beauty. In particular, lips are given as examples of parts that significantly show a change in shape in skin troubles including aging. The troubles associated with the lips include roughness or dullness of the lips, and increase in wrinkles or reduction in fullness of the lips with age.
Patent documents 1 and 2 disclose lip sticks in which a support layer, an adhesive layer, and a separator layer are sequentially laminated.
Patent document 3 discloses a cosmetic laminate structure that conceals skin defects, the cosmetic laminate structure including: a substrate attached to the skin and made of a flexible material comprising polyurethane, polyolefin, or polyacrylate; an image forming layer formed on a substrate and comprising a styrene resin, an epoxy resin or an acrylic resin, on which a coloring material is supported, the image forming layer having printed thereon a skin-finished color image; a hot-melt adhesive layer formed in contact with the image forming layer; and a water-permeable protective layer formed on the hot-melt adhesive layer.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2015-168626
Patent document 2: international publication No. 2015/072021
Patent document 3: japanese patent No. 5677303
Problems to be solved by the invention
When the lip patch and the structure described in patent documents 1 to 3 are applied to the skin, there is a problem that gas stagnation due to adhesion failure or skin respiration occurs between these members and the skin.
Therefore, an object of the present invention is to provide a skin-simulating film which can improve the problem of gas retention during and after attachment and which can provide a natural makeup appearance.
[ means for solving problems ]
< scheme 1 >
A skin-simulating film having a rubber hardness of 20 or less as measured by a type A durometer in accordance with JIS K6253,
the thickness of the film is less than 600 mu m,
at a rate of 3 to 500000 pieces/cm2Is provided with through holes at a ratio of
The area of the through hole is 70-283000 μm2A/one.
< scheme 2 >
The film according to claim 1, wherein the film thickness is 50 to 200 μm.
< scheme 3 >
The film according to claim 1 or 2, wherein a material constituting the dummy film is urethane rubber, olefin rubber, silicone rubber, acrylic rubber, natural rubber, or α -gel.
< scheme 4 >
A film according to any one of claims 1 to 3, which is used by being applied to a body surface.
< scheme 5 >
The membrane as recited in modality 4, wherein said body surface is skin on a face surface, skin on an ear surface, or a nail.
< scheme 6 >
The film according to any one of aspects 1 to 5, further comprising a release sheet.
< scheme 7 >
The film according to any one of aspects 1 to 6, which is non-adhesive.
< scheme 8 >
A cosmetic kit having the film as set forth in any one of schemes 1 to 7.
< scheme 9 >
The cosmetic kit according to claim 8, further comprising a sealing agent.
< scheme 10 >
The cosmetic kit according to claim 9, wherein the sealing agent is at least one member selected from the group consisting of polybutene and polyisobutene.
< scheme 11 >
The cosmetic kit according to claim 9 or 10, wherein the sealing agent further comprises a moisturizing ingredient.
< scheme 12 >
A method for producing a skin-mimicking film as set forth in any one of aspects 1 to 7, which comprises forming a film by injection molding, calendaring, or compression molding, and
the film is irradiated with laser light to form a through hole.
< scheme 13 >
A method of using a skin-mimicking membrane, which comprises applying the skin-mimicking membrane according to any one of claims 1 to 7 to a body surface.
< scheme 14 >
The method of using as described in scheme 13, wherein the skin-mimicking membrane is applied to the body surface after the application of the sealing agent thereto.
< scheme 15 >
The method of use as described in protocol 13 or 14, which is applying lip gloss, lipstick, nail polish or foundation on the skin-mimicking membrane after being attached to the body surface.
Effects of the invention
According to the present invention, it is possible to provide a skin-simulating film which can improve the problem of gas stagnation during and after attachment and can provide a natural makeup appearance.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. The present invention is not limited to the following embodiments, and various modifications can be made within the scope of the technical idea of the invention.
The skin-simulating film of the present invention has a rubber hardness of 20 or less, a film thickness of 600 μm or less, and a number of layers of 3 to 500000 layers/cm, measured by a type A durometer in accordance with JIS K62532The ratio of (A) to (B) is 70 to 283000 μm2A/one.
The skin-imitated film of the invention can improve the bad condition of gas retention during and after the attachment and can present natural makeup.
The skin-mimicking film of the present invention is considered to improve the problem of gas retention during and after application and to exhibit a natural cosmetic appearance by the following principle, but is not limited thereto.
The skin-mimicking film of the present invention has a specific hardness, and therefore, it is easy to follow the uneven portions of the skin such as wrinkles and the movement of the skin, and further, it has a specific thickness, and therefore, it is possible to naturally provide the appearance of a full-bodied skin without any feeling of strangeness.
It is considered that the skin-mimicking film of the present invention has the air permeability without adversely affecting the natural appearance of the skin due to the specific ratio of the through holes having the specific size, and as a result, the retention of air (bubbles) caused by the breathing of the skin during or after the application of the skin-mimicking film is reduced, and the natural makeup can be maintained. Further, it is considered that the improvement of the gas retention is also related to the increase of the contact area between the membrane and the skin, and therefore, the adhesion of the membrane to the skin can be improved.
Further, the skin-mimicking film of the present invention having through-holes of a specific size is considered to have an excellent balance between air permeability and occlusion effect (effect of preventing water loss from the skin), and therefore, when the film is applied to the skin, dryness, roughness, and the like of the skin can be improved.
The specific through-holes formed in the skin-mimicking membrane can improve the adhesion of the skin-mimicking membrane. This is considered to be because, for example, an adhesive applied to the lip penetrates into the through hole and easily adheres to the film. Further, for example, even in the case where the film is formed of a material such as silicone rubber, the adhesion to the film is increased, so that the adhesion of a coating agent such as lip gloss, lipstick, nail polish, foundation liquid, or the like is improved.
Further, the skin-mimicking membrane of the present invention has specific through-holes, and therefore, compared with a membrane without such through-holes, it is considered that the flexibility is improved and the hardness is reduced. As a result, the device is easily expanded and contracted even in a portion with a large amount of movement such as a lip, and therefore, troubles such as wrinkles and peeling can be reduced. Further, by forming the specific through-hole, even a material which is hard and has not been suitable for a skin-mimicking membrane in the past can be used as a material for the membrane.
Skin simulation membrane
Hardness of rubber
The skin-simulating film of the present invention has a rubber hardness of 20 or less as measured by a type a durometer in accordance with JIS K6253. The hardness is preferably 15 or less or 10 or less from the viewpoint of skin-following ability and the like, and is preferably 1 or more, 2 or more, or 3 or more from the viewpoint of strength and the like. Here, the rubber hardness may be the rubber hardness of a test piece having a thickness of 6.0mm or more prepared using a material constituting the skin-mimicking film, or a test piece having a thickness of 6.0mm or more prepared by laminating the mimicking films.
< film thickness >
The skin-simulating membrane of the present invention has a membrane thickness of 600 μm or less. The film thickness of the film may be appropriately adjusted depending on the site to which the film is to be attached, the purpose of use, and the like, and may be, for example, 500 μm or less, 400 μm or less, 300 μm or less, or 200 μm or less, or 50 μm or more, 70 μm or more, or 100 μm or more, but is not limited thereto.
In particular, in the case of using a film for making the lips look plump in a region such as the lips where movement is frequent, the film thickness may be set to 300 μm or less, or 200 μm or less, or 50 μm or more, 70 μm or more, or 100 μm or more.
Here, the film thickness is an average value calculated by measuring the film thickness of any portion of the skin-mimicking film 5 times using a precision thickness measuring machine (type 0.01mm of a peraccock dial gauge manufactured by kawasaki corporation), and when the skin-mimicking film is provided with a release sheet, the film thickness means a film thickness in a state other than the thickness of the release sheet.
The skin-mimicking membrane of the present invention can vary the membrane thickness depending on the site of application or the purpose of use. For example, in the case of applying the film to the lips, the center portion of the film may be thickened and the peripheral portion may be thinned. With this configuration, the boundary between the skin and the film is less likely to be conspicuous, and the feeling of fullness of the lips can be further improved. The film thickness in this case is an average value of the thickest part (thickest part) of the skin simulation film measured in the same manner as described above.
In order to easily follow the movement of wrinkles or skin depending on the application site, a slit-like incision line may be cut in the skin surface to be applied to the lips, the periphery of the eyes, or the like.
< through hole >
The skin simulation membrane of the invention has the volume of 3-500000/cm2The through holes are arranged at a ratio of 70 to 283000 μm2Area of/one.
(ratio of through-holes)
The ratio of the through-holes may be 3/cm from the viewpoint of improvement of gas retention, permeability, flexibility, and the like2Above, 5/cm2Above, 10 pieces/cm2Above, 30 pieces/cm2More than 50/cm2Above 100 pieces/cm2Above, or 1000/cm2The number of the cells may be 500000/cm2450000 pieces/cm2400000 pieces/cm2Below 200000 pieces/cm2100000 pieces/cm2Below, or 50000 pieces/cm2The following.
The through holes may be formed at the above ratio, and may be uniformly or non-uniformly distributed over the entire surface of the skin-mimicking membrane, or may be uniformly or non-uniformly distributed in a part of the skin-mimicking membrane. Here, in the case where the through-hole is formed in a part of the skin-mimicking membrane, the ratio may be satisfied at 1 or more, 2 or more, or 3 or more.
(area of through hole)
The area of the through-holes may be 70 μm from the viewpoint of improvement of gas retention, permeability, flexibility, and the like2More than one, 80 μm2100 mu m of2A/one, or 150 μm2At least one of them, and 283000 μm2Less than 233000 μm2Less than 183000 μm2Less than one, or 133000 μm2Is less than one. Here, the area of the through-hole means the minimum area among the areas of the through-holes in the upper surface and the bottom surface of the skin-mimicking membrane. For example, the through hole refers to the area of the upper surface of a truncated cone obtained by cutting the upper part of the truncated cone parallel to the bottom surface, and refers to the area of either the upper surface or the bottom surface in the case of a cylindrical shape having equal areas of the upper surface and the bottom surface.
(shape of through hole)
The shape of the through-hole is not particularly limited as long as the gas retention improving property and the like can be exhibited, and examples thereof include: a substantially cylindrical shape, a substantially elliptic cylindrical shape, a substantially prismatic shape having a polygonal bottom surface, a substantially truncated conical shape, a substantially elliptic truncated conical shape, a substantially truncated conical shape having a polygonal bottom surface, and the like. Among them, from the viewpoint of productivity, improvement of gas retention, and the like, a substantially cylindrical shape and a substantially truncated conical shape are preferable. Here, "substantially" means that variations due to manufacturing errors and the like are included, and means that variations of about ± 20% are allowed.
In the case where the through-hole has a substantially cylindrical shape or a substantially truncated conical shape, the smallest diameter of the substantially circular portion of the through-hole in the upper surface and the bottom surface of the membrane is preferably 0.01mm or more, 0.02mm or more, or 0.03mm or more, and further preferably 0.60mm or less, 0.50mm or less, or 0.40mm or less, from the viewpoint of improvement of gas retention and the like.
< Material >
The material of the skin-mimicking membrane of the present invention is not particularly limited as long as it has a rubber hardness of 20 or less, and examples thereof include: synthetic rubbers such as olefin rubbers, urethane rubbers, silicone rubbers, and acrylic rubbers, gels such as α -gels that exhibit elasticity, and natural rubbers. Among them, silicone rubber is preferable from the viewpoint of safety to the skin, durability, transparency, and the like. These materials may be used alone or in combination of plural kinds. Further, the skin-mimicking membrane may be a single layer or a laminated structure of these materials.
The silicone rubber as a preferable material is preferably obtained by curing an addition (hydrosilylation) reaction-curable silicone rubber composition or an organic peroxide-curable silicone rubber composition, for example, from the viewpoint of being moldable in a short time by heating, but is not limited thereto.
As the addition reaction curing type silicone rubber composition, one having a known composition can be used, and for example, one containing the following components: an alkenyl-containing organopolysiloxane having 2 or more alkenyl groups represented by vinyl groups in 1 molecule, an organohydrogenpolysiloxane having 2 or more, preferably 3 or more SiH groups (usually, the molar ratio of SiH groups to alkenyl groups is 0.5 to 4), and a platinum group metal-based addition reaction catalyst represented by platinum or a platinum compound (usually, 1 to 1000ppm relative to the alkenyl-containing organopolysiloxane).
Further, as the organic peroxide-curable silicone rubber composition, known compositions can be used, and for example, the following compositions are preferably used: an organopolysiloxane having 2 or more alkenyl groups in 1 molecule is compounded with an organic peroxide as a curing agent in a curing effective amount (usually 1 to 10 parts by mass per 100 parts by mass of the organopolysiloxane).
As the silicone rubber composition, commercially available products can be used. For example, LIMS (trademark) (liquid silicone rubber injection molding system) manufactured by shin-Etsu chemical industries co., ltd., which is an addition reaction curable silicone rubber composition, can be used, and among them: KE-1950-10A/B, KE-1950-20A/B, KE-2004-3A/B, KE-2004-5A/B, etc.
(optional Components)
The skin-simulating film of the present invention may contain various additives such as colorants such as pigments and dyes, fillers, stabilizers, moisturizers, ultraviolet absorbents, ultraviolet scattering agents, and lubricants, as appropriate, within a range not affecting the effects of the present invention. Further, since the transparent skin-simulating film is less likely to be conspicuous after being applied to the skin, it is preferable that the film does not contain a colorant.
< optional structural layer >
The skin-mimicking film of the present invention may optionally have constituent layers such as an adhesive layer, and a release sheet. In particular, the skin-mimicking film of the present invention has a small thickness of 600 μm or less, and therefore, from the viewpoint of protection, handling, and the like, it is preferable to provide a release sheet on one or both sides of the film.
The material of the release sheet is not particularly limited, and from the viewpoint of handling properties, there may be mentioned: polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate, paper, and the like, and the surface of the release sheet may be subjected to a release treatment such as silicone. The peeling sheet can be closely adhered to the skin-imitated film by electrostatic action.
Further, the pressure-sensitive adhesive layer and the adhesive layer are likely to cause a burden or a foreign body sensation on the skin, and reduce the following property to wrinkles and the like, and also risk of deterioration in the handling property at the time of attachment, so the skin-simulating film is preferably a non-adhesive film not having these layers.
< application site of skin-imitated membrane >
The skin-mimicking membrane of the present invention may be applied to the skin surface of all parts of the body, that is, any body surface, and may be applied to any part, for example, skin surfaces such as the face (lips, the periphery of the eyes, and the nose), the ears, the hands, the arms, the legs, the feet, the chest, the lower abdomen, and the back, but is not limited thereto. In the case where the skin-mimicking film is attached to the surface of the skin having a wound, the film follows the irregularities of the wound, so that the wound can be made inconspicuous. Here, the skin also includes nails and the like which are solidified by the change in the cutin of the epidermis of the skin.
The skin-mimicking film of the present invention is improved in gas retention after attachment, is less noticeable, has excellent adhesion, and easily follows irregularities on the skin surface such as wrinkles, and therefore, it is preferable to attach the film to the face (particularly, the lips, the periphery of the eyes, and the nose), the ears, or the nails in the application region.
Cosmetic kit
The skin-mimicking film of the present invention may provide a cosmetic kit having the film. The cosmetic kit may further include, in addition to the skin-mimicking film, any means for easily attaching the film to the skin, or further applying makeup, for example.
Examples of such arbitrary members include: sealing agent, cutter, scissors, lip gloss, lipstick, nail polish, liquid foundation, mirror, etc. Among them, the adhesive agent applied to the skin surface can improve the adhesion of the skin-mimicking film to the skin, and is particularly preferable when a non-adhesive skin-mimicking film having no adhesive layer or adhesive layer is used.
< sealing agent >
The sealing agent may be any agent that can increase the adhesion of the skin-mimicking film to the skin with a small load on the skin, and is not limited to the following, and for example, at least one selected from the group consisting of polybutene and polyisobutylene may be used. From the viewpoint of adhesiveness, durability, and the like, the number average molecular weight of polybutene may be 1000 or more or 1500 or more, 5000 or less or 4000 or less, and the number average molecular weight of polyisobutylene may be 8000 or more, 9000 or more, or 10000 or more, or 30000 or less, 25000 or less, or 22000 or less. Here, the number average molecular weight means a number average molecular weight in terms of polystyrene in the measurement by gel permeation chromatography.
As the adhesive in the present invention, commercially available products can be used. For example, as the polybutene, deodorized polybutene-P200 SH (manufactured by NIKKORICA corporation) or the like can be used, and as the polyisobutylene, Oppanol (trademark) B12SFN/12N, Oppanol (trademark) B13SFN, Oppanol (trademark) B14SFN/14N, Oppanol (trademark) B15SFN/15N (manufactured by BASF corporation or the like) or the like can be used.
The sealing agent may also contain a moisturizing ingredient. As the moisturizing component, one or more kinds of components generally used in cosmetics can be used, and examples thereof include: polyethylene glycol, propylene glycol, glycerol, 1, 3-butylene glycol, dipropylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucopolysaccharide sulfate, trichosanthes kirilowii maxim acid, atelocollagen, sodium lactate, pyrrolidone carboxylic acid, short-chain soluble collagen, and the like.
The blending ratio of the moisture retention component is 0.01 mass% or more, 0.05 mass% or more, or preferably 0.1 mass% or more, and further 10 mass% or less, 9 mass% or less, or preferably 8 mass% or less with respect to the total amount of the adhesive.
Method for producing skin-imitated film
The skin-mimicking membrane of the present invention can be manufactured by a known method. Specifically, for example, a film can be formed by compression molding, injection molding, calendaring, compression molding, or the like, and then a through hole is formed in the film by applying laser irradiation, punching, or the like, to obtain a skin-mimicking film. Among them, from the viewpoint of productivity, accuracy, and the like, a film is preferably formed by an injection molding method, a calender molding method, or a compression molding method, particularly a calender molding method, and a through hole is preferably formed by laser irradiation.
The obtained skin-mimicking film may be cut into an arbitrary shape and size by a user and used, or may be processed into an arbitrary shape and size by laser processing, punching processing, or the like.
The formation of the through-hole and the processing of an arbitrary shape may be performed on the skin-mimicking film alone, or may be performed on a skin-mimicking film having a release sheet on one or both surfaces thereof.
Method for using skin simulation membrane
The skin-mimicking membrane of the present invention, in the case where a release sheet is present, can be used by being attached to the skin surface (body surface) of the body after the sheet is appropriately removed.
For example, in the case of applying to the lips, a skin-mimicking film prepared in the shape and size of the lips is applied to the lips. In this case, if the film does not have an adhesive layer or an adhesive agent layer, if the skin-mimicking film is attached to the lips after the adhesive agent is applied to the lips with fingers, a pen, or the like, particularly immediately after the application, the adhesive agent penetrates into the through-holes of the film, and thus the adhesiveness can be further improved. As a result, even if the lips move relatively more than the other portions, the lips can be prevented from being undesirably wrinkled or peeled.
For the skin-simulating film of the present invention, paints such as lip gloss, lipstick, nail polish, foundation liquid, etc. may be additionally applied. The smearing preparation can be applied to the skin simulation film in advance, or can be applied after the film is attached to the surface of the skin.
Since the skin-mimicking film of the present invention has the specific through-holes, the smearing agent as described above is likely to penetrate into the through-holes. As a result, the material can be used as a material for a skin-mimicking membrane even if the material is not easily applied with the smearing preparation.
[ examples ]
The present invention will be described in further detail below with reference to examples, but the present invention is not limited to these examples.
Examples 1 to 3, and comparative examples 1 and 2
The skin-mimicking films obtained by the formulations and the production 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.
In the case of applying the skin-mimicking film to the lips, the film is applied immediately after applying a sealant containing polybutene (number average molecular weight 2650) and polyisobutylene (number average molecular weight 16000) to the lips. In addition, in the case of attaching the skin-mimicking film to the polyurethane-made skin model for evaluation, the skin-mimicking film is directly attached without applying a sealing agent to the skin model.
< evaluation of skin-imitated film >
(durability of gas Retention improvement)
A skin-mimicking film was applied to the lips of panelists aged 40 to 50 years old, and the state of the film after 3 hours was visually observed. The evaluation items are as follows. From the results, the persistence of improvement in gas retention of the skin-mimicking membrane can be evaluated. Here, the improvement of the persistence of gas retention means the improvement of gas retention at the time of attachment and after attachment (after 3 hours).
No air bubbles are present at the attachment site a.
1-3 air bubbles are present at the B attaching part.
The C-attached part has 4 or more air bubbles.
(Natural cosmetic compatibility)
Skin-mimicking films were applied to the lips of panelists aged 40 to 50 years old, and the state of the films immediately after eating for 3 hours was visually observed. The evaluation items are as follows. From the results, the natural makeup of the skin-imitated film can be evaluated.
The attached part A is not obvious and feels natural.
The attached part of B is slightly obvious and has natural appearance.
The C-attached part is obvious and unnatural.
(spreadability of lip gloss)
The lips of panelists aged 40 to 50 years old were attached with a skin-simulating film, and the state of the film after the lip gloss was applied was visually observed. The evaluation items are as follows. From the results, the spreadability of the lip gloss of the skin-mimicking film was evaluated.
A has no uneven application and feels natural.
B found uneven application on a part of the film, but had a natural appearance.
C, uneven smearing and unnatural feeling are found.
(spreadability of Foundation make-up liquid)
A skin-mimicking film was applied to a skin evaluation model made of polyurethane (facial skin model manufactured by belux corporation), and the state of the film after application of the foundation liquid was visually observed. The evaluation items are as follows. From the results, the spreadability of the foundation of the skin-imitated film was evaluated.
A shows no pores at all, and gives a uniform and natural makeup feeling.
B uneven smearing and pores were observed in a part of the film, but a natural look and feel of makeup was obtained.
C, uneven application and pores are found, and the makeup is unnatural.
(exfoliative Properties of Foundation make-up liquid)
A skin-mimicking film was applied to a skin evaluation model made of polyurethane (a facial egg skin model manufactured by belux corporation), a foundation solution was applied, and after about 1 minute, the state of the film repeatedly wiped with a paper towel 10 times was visually observed. The evaluation items are as follows. From the results, the exfoliation property of the foundation of the skin-imitated film, that is, the adhesiveness of the pressed powder was evaluated.
A was found to have no flaking of the foundation liquid at all, and a natural makeup appearance was obtained.
B, the foundation was peeled off in a part of the film, but a natural look and feel was obtained.
C, the foundation liquid was found to peel off, and the makeup was not natural.
< example 1 >
A silicone rubber film having a thickness of 100 μm and sandwiched between 2 release sheets was prepared by placing LIMS (trademark) KE-2004-3A/B manufactured by shin-Etsu chemical Co., Ltd in a rolling apparatus, heating and curing the mixture, and rolling the cured mixture with a plurality of metal rolls.
Here, a silicone rubber film from which the release sheet had been removed was laminated to prepare a test piece having a thickness of 6.0 mm. The rubber hardness of the test piece measured by a type A durometer in accordance with JIS K6253 was 3.
Next, the silicone rubber film obtained was irradiated with CO using a laser irradiation machine manufactured by Videojet2Laser light at 1250 counts/cm2The ratio (A) was determined to form through-holes on the entire membrane surface, thereby preparing a skin-mimicking membrane. Here, the through-holes take the shape of a substantially truncated cone, and the minimum area of the through-holes in the film surface and the diameter of the substantially circular portion thereof are about 1300 μm2And 40 μm.
< example 2 >
A skin simulation film of example 2 was produced in the same manner as in example 1, except that the thickness of the skin simulation film was changed to 200 μm.
< example 3 >
A skin simulation film of example 3 was produced in the same manner as in example 1, except that the thickness of the skin simulation film was changed to 300 μm.
< comparative example 1 >
A skin phantom film of comparative example 1 was produced in the same manner as in example 1, except that no through-hole was formed in the skin phantom film.
< comparative example 2 >
A skin simulation film of comparative example 2 was produced in the same manner as in example 1, except that the thickness of the skin simulation film was changed to 700 μm.
[ Table 1]
Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2
Film thickness (mum) 100 200 300 100 700
Hardness of rubber 3 3 3 3 3
Through hole Is provided with Is provided with Is provided with Is free of Is provided with
Improved persistence of gas retention A A A C A
Natural cosmetic property A A B B C
Feeling of fullness B A A B A
Spreadability of lip gloss A A A C A
Spreadability of foundation liquid A A A C A
Spalling property of foundation liquid B B B C B
< results >
As can be seen from the results in table 1, the skin-mimicking films of examples 1 to 3 were confirmed to have improved durability of improvement of gas retention and natural makeup properties as compared with the skin-mimicking films of comparative examples 1 and 2.
Further, it was confirmed that the skin-mimicking films of example 1 were superior to those of comparative example 1 having no through-holes and those of example 1 having through-holes in terms of the spreadability of lip gloss and foundation liquid and the peelability of foundation liquid. This is considered to be because the skin-mimicking membrane is provided with through-holes of a specific size at a specific ratio, and thus lip gloss and foundation liquid permeate into the through-holes.

Claims (15)

1. A skin-simulating film having a rubber hardness of 20 or less as measured by a type A durometer in accordance with JIS K6253,
the thickness of the film is less than 600 mu m,
at a rate of 3 to 500000 pieces/cm2Is provided with through holes at a ratio of
The area of the through hole is 70-283000 μm2A/one.
2. The film according to claim 1, wherein the film thickness is 50 to 200 μm.
3. The membrane of claim 1 or 2, the material constituting the dummy membrane being urethane rubber, olefin rubber, silicone rubber, acrylic rubber, natural rubber, or α -gel.
4. The membrane of any one of claims 1 to 3, for application to a body surface.
5. The membrane of claim 4, wherein the body surface is skin on a face surface, skin on an ear surface, or a nail.
6. The film according to any one of claims 1 to 5, further comprising a release sheet.
7. A film according to any one of claims 1 to 6 which is non-adhesive.
8. A cosmetic kit having the film of any one of claims 1 to 7.
9. The cosmetic kit of claim 8 further comprising a sealing agent.
10. The cosmetic kit according to claim 9 wherein the sealing agent is at least one member selected from the group consisting of polybutene and polyisobutene.
11. The cosmetic kit according to claim 9 or 10 wherein the sealing agent further comprises a moisturizing ingredient.
12. The method for producing a skin-mimicking film according to any one of claims 1 to 7, wherein the film is formed by injection molding, calendaring, or compression molding, and
the film is irradiated with laser light to form a through hole.
13. A method of using a skin-mimicking membrane, comprising attaching the skin-mimicking membrane according to any one of claims 1 to 7 to a body surface.
14. The method of use of claim 13, wherein the skin-mimicking membrane is applied to the body surface after the application of the sealing agent to the body surface.
15. The use of claim 13 or 14, wherein after being applied to the body surface, a lip gloss, lipstick, nail polish or foundation is applied to the skin-mimicking membrane.
CN201980050189.6A 2018-07-31 2019-04-08 Skin-simulating film, method for producing same, method for using same, and cosmetic kit having same Pending CN112512495A (en)

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