JP3187266U - Adhesive material - Google Patents

Abstract

The present invention provides an adhesive material that can be applied to an adherend surface such as skin with good operability and is less noticeable after application.
In a patch 1, a surface of a sheet having flexibility and transparency is formed on a rough surface 3 to make an opaque base material 2, and a transparent pressure-sensitive adhesive layer 4 is formed on the other surface. The carrier sheet 5 is temporarily attached to the surface of the base material 2 to keep the base material 2 in a self-supporting state and transparent. At the end portion 8 of the base material 2, the transparent portion is made opaque by bringing the surface of the base material 2 and the carrier sheet 5 into a non-contact state, and this is used as a clue portion 9.
[Selection] Figure 2

Description

  The present invention relates to an improvement of a patch, and in particular, a patch having a flexible thin base material can be affixed to an adherend surface such as skin with good operability and is conspicuous even after affixing. It is related to a patch with a little amount.

As represented by adhesive dressing, it is applied to the skin surface such as the face, eyelids, neck, arm, etc., and adhesive materials using flexible and transparent films with low base thickness and low rigidity are known. Yes.
With such a flexible thin base material, it is difficult to maintain the shape of the base material itself. At the time of sticking, wrinkles occur in the sticking material, the base material is torn, or the adhesive layers are bonded to each other. It cannot be used well. Therefore, conventionally, when using the base material as described above for the adhesive material, temporarily attaching a self-supporting carrier sheet to the base material, and applying the adhesive material to the skin surface with the carrier sheet attached, Thereafter, the carrier sheet is removed.

Further, by forming a coating layer having a rough surface or a low cohesive force on one side of the support (base material) of such an adhesive dressing, transparency can be achieved when the backing member (carrier sheet) is temporarily attached (adhered). It has been made opaque by peeling the backing member, so that the sticking part can be easily confirmed during the sticking operation, and after sticking, the sticking part can be hidden so that it cannot be visually confirmed. The thing is also proposed (patent document 1).

  However, in the above, since it has transparency when the backing member is temporarily attached (adhered), the sticking part can be easily confirmed at the time of the sticking operation. There was a problem that it was difficult to peel off from the (base material). In addition, it may be difficult to recognize the patch when taken out from the packaging material.

Japanese Patent Laid-Open No. 5-176882

  In the present invention, the surface of a flexible base material having a pressure-sensitive adhesive layer is made rough and opaque, and a carrier sheet is adhered to the surface to make it transparent. The carrier sheet can be easily and surely peeled off by providing a portion that can be confirmed and provided as a clue for peeling the carrier sheet after sticking.

  In the present invention, the surface of a sheet having flexibility and transparency is formed into a rough surface by forming a rough surface, and a pressure-sensitive adhesive layer having transparency is formed on the other surface. A carrier sheet is temporarily attached to the surface of the base material to keep the base material in a self-supporting state, and the base material is made transparent. At the end of the base material, there is a clue part that is opaque in a non-contact state between the surface of the base material and the carrier sheet so that the carrier sheet is peeled off after being stuck with the adhesive layer. Form a patch.

The surface roughness of the rough surface of the base material is preferably such that SRa is 0.1 to 1.0 μm.
And it is good to form also the surface of the carrier sheet closely_contact | adhered to the surface side of the said base material, In this case, the surface roughness of the rough surface of the said carrier sheet is rougher than the surface roughness of the rough surface of the said base material surface Can be formed.
The clue portion does not need to be too large, but may be formed so as to occupy 5 to 50% of the surface area of the substrate.

  According to the present invention, when applying the patch to the skin surface, it is possible to easily confirm the site to be pasted through the patch, so that the sticking operation can be performed reliably. And after sticking, since a part is peeled between the surface of the base material and the carrier sheet and is in a non-adherent state, the carrier sheet is gripped so as to pick a cue that can be easily visually recognized in an opaque state. It can be easily and reliably peeled off. In addition, since there is the above-mentioned cue portion that is partly peeled and not in close contact between the surface of the base material and the carrier sheet, the adhesive material can be visually confirmed when the release sheet is taken out from the packaging material. It becomes easy.

It is a perspective view which shows the Example of this invention. It is a partially expanded sectional view of what is shown in FIG. It is explanatory drawing of the state which affixed the patch shown in FIG. 1 on the eyelid part. It is a partially-omission perspective view which shows another Example. It is a partially-omission perspective view which shows other Example.

The base material 2 forming the patch 1 is formed of a sheet having flexibility and transparency, and the surface thereof is formed on the rough surface 3 so that it appears opaque.
The base material is not particularly limited, and plastics such as polyethylene, polyurethane, polyester, polyamide, ethylene / vinyl acetate copolymer (E / VAC), various laminates, and the like can be used.

  In particular, when the substrate is affixed to the face, it is preferably a substrate whose Young's modulus is an elastic modulus of 0.01 to 0.5 GPa. By using a material having such a Young's modulus as the base material, it is possible to make the skin close to the face and to have a degree of flexibility that can follow the movement of the skin. As a result, it is possible to provide a facial patch that can be applied to the skin of the face with a large amount of sebum secretion over a long period of time, has little adhesive residue, and has little skin irritation.

In many cases, a plastic film having a substantially high transparency is used as the base material. However, since the base material surface is rough, a sticking material for a face whose sticking state is not so noticeable is used. Can be provided.
If the Young's modulus of this base material is too small, the strength of the facial patch is insufficient, so that it may be broken when applied to the face or peeled off. If the Young's modulus of the substrate is too large, it cannot adhere to the facial skin or follow the movement of the skin, and may not be applied for a long period of time.

As a base material of such a facial patch, Young's modulus is 0.01 to 0.5 GPa, preferably 0.03 to 0.48 GPa, more preferably 0.05 to 0.45 GPa as described above. As long as there is no particular limitation, in many cases, it is appropriate to use a plastic film.
The Young's modulus of the base material was measured according to ASTM-D-882, and in the base material of the facial patch, the MD direction of the plastic film (extrusion direction during film forming) and the TD direction ( The same Young's modulus is preferable for any of the directions orthogonal to the extrusion direction during film formation.

The film having the above Young's modulus suitable for use as a substrate is selected from the above-mentioned various plastics as the main material, and the composition of the material is selected so as to form a plastic film having a desired Young's modulus. It can be prepared by selecting molding conditions.
Specifically, from the viewpoint of easy adjustment of Young's modulus, the materials include polyethylene (low density polyethylene, high density polyethylene, linear low density polyethylene, etc.), polyolefin such as polypropylene, polyamide such as nylon 6, etc. In particular, polyethylene film, polypropylene unstretched film, and unstretched polyamide film are preferable, and polyethylene film is more preferable.

The thickness of the substrate 2 is set to an appropriate thickness such that desired flexibility can be obtained, but is usually about 5 to 50 μm, preferably about 8 to 25 μm.
When the thickness of the base material is too thin, the strength of the base material becomes insufficient, and the base material may be cut off when the patch is applied to the skin or the face or peeled off. May be difficult to manufacture. If the base material is too thick, it will be difficult for the patch to adhere to the skin surface with fine irregularities such as skin crevices, the sticking state will be more noticeable, the discomfort will be greater, and pain when peeling Also grows.
The thickness of such a substrate may be measured using a dial thickness gauge. Moreover, the measuring method of the thickness of the other material (layer) of the patch is also the same.

The rough surface 3 of the substrate surface has a rough surface roughness SRa value of about 0.1 to 1.0 μm, preferably about 0.2 to 0.6 μm, more preferably 0.3 to 0. It is preferable to form it to about .5 μm. By making the surface of the base material a rough surface in such a range, it is possible to suppress shine when light hits the surface of the base material, and the adhesive material becomes inconspicuous after application.
Such a rough surface can be formed by, for example, a known method such as embossing, blasting, sanding or the like.

  The SRa can be measured by the following method. A substrate is fixed on a glass plate with double-sided tape, and using a fine shape measuring machine (SURFCORDER ET4000A, manufactured by Kosaka Laboratory), measurement length: 300 μm, pitch: 2 μm, scanning speed: 100 μm / sec, number of scanning : The surface shape is measured under the conditions of 150 times and the load: 3 mg. Then, the three-dimensional surface roughness SRa of the measurement range can be obtained using the three-dimensional surface roughness analysis program TDA-22.

  A pressure-sensitive adhesive layer 4 having transparency is formed on the other surface side of the substrate. Acrylic, rubber-based, urethane-based, vinyl ether-based, silicone-based, hydrogel-based, and other pressure-sensitive adhesives can be appropriately used as the pressure-sensitive adhesive for the pressure-sensitive adhesive layer. It is often preferable to use an acrylic or rubber adhesive.

For acrylic adhesives, there are no restrictions on elastomers, resins, and softeners (liquid to solid substances at room temperature) for application to the skin. You can choose.
The pressure-sensitive adhesive forming the pressure-sensitive adhesive layer of the facial patch is composed of 50 to 99% by mass of (meth) acrylic acid alkyl ester having an alkyl group having 8 to 12 carbon atoms and other vinyl monomers copolymerizable therewith. A non-aqueous acrylic pressure-sensitive adhesive containing an acrylic copolymer consisting of 1 to 50% by weight of a monomer is preferred.

  Examples of the above (meth) acrylic acid alkyl ester include, for example, n-octyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, isononyl (meth) acrylate, and (meth) acrylic. Examples include acid n-decyl, isodecyl (meth) acrylate, and lauryl (meth) acrylate. Among these, those having an alkyl group having 8 to 9 carbon atoms such as 2-ethylhexyl acrylate and isononyl acrylate are particularly preferable. These (meth) acrylic acid alkyl esters can be used alone or in combination of two or more.

  As the vinyl monomer, an alkoxy group-containing vinyl monomer can be particularly preferably used, which imparts hydrophilicity to the pressure-sensitive adhesive, and the pressure-sensitive adhesive layer has moisture permeability and hygroscopicity. it can. Examples of the alkoxy group-containing vinyl monomer include an alkoxyalkyl acrylate having an alkoxy group having 1 to 4 carbon atoms such as 2-methoxyethyl acrylate, 2-ethoxyethyl acrylate, 2-butoxyethyl acrylate, and the like. An ester is mentioned, All can be used individually or in combination of 2 or more types.

  When the above acrylic copolymer contains an alkoxy group-containing vinyl monomer as another vinyl monomer copolymerizable with the above (meth) acrylic acid alkyl ester, the inclusion of this alkoxy group-containing vinyl monomer The amount is preferably 5 to 45% by mass and more preferably 10 to 40% by mass in the acrylic copolymer.

In addition, a carboxyl group-containing vinyl monomer can be preferably used as the vinyl monomer, and this carboxyl group-containing vinyl monomer has a reactive point for crosslinking the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer. While ensuring, cohesion force of the acrylic copolymer obtained can be improved.
Examples of the carboxyl group-containing vinyl monomer include acrylic acid and methacrylic acid, and any of these can be used alone or in combination of two or more. The content of such a carboxyl group-containing vinyl monomer is preferably 1 to 10% by mass, more preferably 1.5 to 7% by mass, and further preferably 2 to 5% by mass in the acrylic copolymer.

  Vinyl ester is preferably used as another vinyl monomer copolymerizable with the (meth) acrylic acid alkyl ester, and this can particularly give cohesiveness to the pressure-sensitive adhesive layer. Examples of the vinyl ester include vinyl acetate, vinyl propionate, vinyl pivalate and the like, and any of them can be used alone or in combination of two or more. The content of such a vinyl ester is preferably 3 to 20% by mass, more preferably 5 to 15% by mass in the acrylic copolymer.

For rubber adhesives, there are no restrictions on elastomers, resins, and softeners (liquid to solid substances at room temperature) to be applied to the skin, and materials are selected appropriately in consideration of safety and adhesiveness to the skin. can do.
The facial patch contains a styrene-isoprene-styrene block copolymer (SIS), a tackifying resin and a softening agent, and the ratio (mass ratio) of SIS to the tackifying resin is 1: 2-1: 4 and the content of the softening agent is preferably 40 to 60% by mass. Further, terpene resin is particularly preferable as the tackifying resin, and liquid paraffin is particularly preferable as the softening agent.

Although the thickness of the above-mentioned pressure-sensitive adhesive layer 4 is set to an appropriate thickness depending on the application, it is usually about 5 to 50 μm, preferably about 15 to 30 μm.
Moreover, this adhesive layer 4 can contain various chemical | medical agents suitably according to a use application.

The rough surface 3 side of the surface of the substrate 2 is covered with a translucent carrier sheet 5. The carrier sheet 5 is temporarily attached to the rough surface 3 of the base material surface in a close contact state, whereby the base material that is opaque due to the rough surface formed on the surface is made transparent. Yes.
The contact state between the carrier sheet 5 and the rough surface 3 of the substrate surface does not mean that the carrier sheet 5 and the rough surface 3 of the substrate are in close contact with each other. Even if the space 6 exists in a part between the unevenness forming the surface, it may be sufficient if the opacity due to the rough surface of the substrate is changed to transparency.

As the carrier sheet 5, a carrier sheet 5 having an appropriate strength is used so that the base material 2 having flexibility can be provided with independence.
For such a carrier sheet 5, a sheet of polyester, polypropylene, polyamide or the like can be appropriately used. It is optional to apply a treatment agent such as silicone treatment on one side or both sides of the carrier sheet 5.
The thickness of the carrier sheet 5 is usually about 10 to 75 μm, preferably about 15 to 30 μm in many cases. However, the thickness of the carrier sheet 5 is preferably set in consideration of the material used.

  The surface of the carrier sheet 5 on the side in contact with the rough surface 3 on the surface of the substrate can also be formed on the rough surface 7. The carrier sheet 5 is opaque due to the rough surface 7, but when the carrier sheet 5 is brought into close contact with the surface of the substrate 2, the irregularities of the rough surface 7 of the carrier sheet 5 are When the substrate 2 and the carrier sheet 5 are in close contact with each other, the substrate 2 and the carrier sheet 5 are brought into close contact with the unevenness of the rough surface 3 and become transparent. If it is transparent, it turns out that a carrier sheet and a base material are a moderate adhesion state.

Although the rough surface roughness of the rough surface 3 of the base material 2 and the rough surface roughness of the rough surface 7 of the carrier sheet 5 can be set to the same rough surface roughness, both rough surface roughnesses are slightly changed. You can also
In this case, the rough surface of the rough surface 7 of the carrier sheet 5 can be formed to be rougher than the rough surface of the rough surface 3 of the substrate 2.
When the rough surface roughness of the rough surface 3 of the substrate 2 and the rough surface roughness of the rough surface 7 of the carrier sheet 5 are changed, when both rough surfaces are brought into a close contact state, it changes from opaque to transparent. Although there is no change, the state of the space 6 formed by the unevenness of both rough surfaces changes, and it may be easy to peel off the carrier sheet 5 from the surface of the substrate 2.

  The peeling force for peeling the carrier sheet 5 from the substrate 2 is, for example, using a Tensilon type universal testing machine RTM-100 (manufactured by Orientec Co., Ltd.), peeling angle: 90 °, and tensile speed: 300 mm / min. When peeled under the conditions, the range of preferably about 0.02 to 0.30 N / 10 mm is preferable, and about 0.02 to 0.10 N / 10 mm is more preferable.

In order to temporarily attach the carrier sheet 5 to the surface of the base material 2 in a close contact state, a known method can be used. For example, the base material 2 and the carrier sheet 5 can be stacked and pressure-bonded. However, it is not limited to this method.
For example, by applying a material such as urethane or ethylene in a melted state to an appropriate viscosity on the rough surface side of the carrier sheet, and pressing with a roller, a substrate with a certain thickness can be produced on the carrier sheet. it can.
The pressure-sensitive adhesive layer 4 is formed by applying a pressure-sensitive adhesive to the other surface of the substrate 2 to which the carrier sheet 5 is temporarily attached, or a release sheet for covering the pressure-sensitive adhesive layer 4 described later. It can be formed by applying an adhesive and transferring the applied adhesive to the other surface of the substrate 2.

The carrier sheet 5 that is in close contact with the surface of the base material 2 on which the pressure-sensitive adhesive layer 4 is formed is in a state in which a part of the carrier sheet 5 is peeled off from the end 8 of the base material 2 and the close contact state is released. (FIG. 2).
As described above, a part of the carrier sheet 5 is brought into a non-contact state with the surface of the base material 2, so that the part in the non-contact state becomes opaque and can be visually observed. A cue portion 9 is provided as a clue when the carrier sheet 5 is peeled off.

For making the surface opaque, when the surface roughness of the rough surface 3 of the base material 2 and the rough surface 7 of the carrier sheet 5 are slightly changed, the base material 2 and the carrier sheet 5 are in a non-contact state. This is more preferable because the opaqueness becomes clearer due to the synergistic effect of the light refraction state of each layer. For example, in a color difference meter, the L value, which is an index of brightness, is about 3 to 10 in the transparent portion, whereas it is 40 to 55 in the opaque portion, and a clear difference was recognized. .
The measurement of the L value by the color difference meter is to measure the L value by the SCE method using the color difference meter (Minolta, CM-2600d). In this case, the L value is measured three times, and the average value is obtained. It was set as the measurement result.

  The size of the clue portion 9 is made opaque and can be surely seen, and can be seen through from a transparent portion in a close contact state other than the clue portion 9. It may be formed so as to occupy about 5 to 50% of the surface area.

  In order to form the clue portion 9 described above, a peeling plate or blade is continuously or intermittently inserted from the end portion between the surface of the substrate 2 in close contact with the carrier sheet 5, or compressed air is blown. It can be formed by inserting and peeling only the clue part 9.

  The surface of the pressure-sensitive adhesive layer 4 is preferably covered with the release sheet 10. The release sheet 10 can be formed of polyester, polypropylene, or other plastic sheet whose surface is peeled with silicone or the like, or sheet material such as polylamination paper. The release sheet 10 may be transparent or may not be transparent. Moreover, what is colored can also be used.

Moreover, in order to form the grip part 13 at the time of use, the release sheet may be divided into two or more pieces across the adhesive material, and the divided state is a U-shape, a straight line, a wave shape, or any other appropriate state. Can be formed into a state. The divided state at this time may be not only a state divided by a cut line but also a state divided by a perforated line or other discontinuous cut lines. If the grip portion 13 is formed, the patch can be applied to the skin without touching the adhesive layer with a finger.
In the case where various kinds of chemicals are contained in the pressure-sensitive adhesive layer 4, it is preferable to use a release sheet that does not lose the contained chemicals by volatilization.

  The base material 2, the pressure-sensitive adhesive layer 4, and the carrier sheet 5 in the above-described laminated state are usually preferably formed in the same shape and the same area, and the release sheet 10 can also be formed in the same shape and the same area. If it is formed larger than the base material 2 or the like, the usability is further improved. In particular, the preferable size of the release sheet is 1.05 to 20 times when the substrate 2 and the pressure-sensitive adhesive layer 4 have the same shape and the same area, and about 5 to 10 sheets of a plurality of patch materials are 1 It is often preferable in terms of handleability to be large enough to be disposed on a single release sheet.

As another aspect, the carrier sheet 5 is a patch formed larger than the base material 2 and the pressure-sensitive adhesive layer 4, and can be disposed on the release sheet 10. The size of the carrier sheet 5 can be appropriately determined depending on the convenience of use, but when the substrate 2 and the pressure-sensitive adhesive layer 4 have the same shape and the same area, they are about 1.05 to 1.5 times. It is preferable that the carrier sheet is formed in a form extending from the peeling portion of the patch.
At this time, as long as the pressure-sensitive adhesive layer 4 is affixed on the release sheet 10, the arrangement on the release sheet is not particularly limited, and the base material 2, the pressure-sensitive adhesive layer 4, and the carrier sheet 5 are in a laminated state. May be arranged inside one release sheet, or may be formed in a state in which the extended portion 14 protrudes outside the release sheet in a part of the carrier sheet 5 (FIG. 5). ).

In FIG. 4, a plurality of patch materials 1 are arranged in parallel on a single release sheet 10.
In addition, the release sheet 10 can be provided with a cut line 12 such as the above-mentioned U shape so as to include a place corresponding to the clue part 9 from the side edge 12 of the release sheet 10 to form the grip part 13. . When the grip 13 is lifted upward, the patch 1 can be easily and reliably peeled off from the release sheet 10.

The patch 1 shown in the figure is formed so as to be used for treatment and protection of the eyelids and eyes. The patch 1 is peeled off from the release sheet 10 and applied to the eyelid portion with the adhesive layer 4. If the carrier sheet 5 is peeled off with the clue 9 that can be visually observed in an opaque state, the carrier sheet 5 can be reliably affixed (FIG. 3).
Since the rough surface comes to be exposed on the surface of the base material 2 from which the carrier sheet 5 has been peeled off, the surface of the pasted surface is not noticeable without a shine due to the gloss unique to the film, and is good. Can be attached to the state.

Furthermore, specific examples will be described below.
A rough surface 7 is formed on one surface of a carrier sheet 5 formed of a polyester film having a thickness of 25 μm, and the roughness of the rough surface is set to 0.349 (n = 5 average value). The melted polyethylene film is extruded so as to have a thickness of 15 μm, and both are appropriately pressed through a roller so as to be in a close contact state, whereby a translucent laminate is obtained.

  A pressure-sensitive adhesive layer 4 is formed by applying a SIS pressure-sensitive adhesive to a thickness of 20 μm on one surface of the release sheet 10 made of a polyester film having a thickness of 75 μm. And if the adhesive layer 4 on the said peeling sheet 10 is formed so that it may transcribe | transfer to the other surface of the said base material 2, the laminated body which has transparency will be obtained. Then, after forming a half-cut portion from the release sheet side such as an arbitrary cut line 12, when a release plate is inserted between the surface of the substrate 2 and the carrier sheet 5 in the above contact state from the end, By such peeling, it becomes opaque and the clue part 9 can be formed.

  The SRa value of the surface roughness of the rough surface 3 on one surface of the base material 2 formed of the polyethylene film having a thickness of 15 μm was 0.292 (n = 5 average value). Thereafter, the adhesive material temporarily attached to the release sheet by removing the adhesive tape composed of the base material, the adhesive layer, and the carrier film around the adhesive patch by a process such as half-cutting and cutting from the base material side as appropriate. 1 was obtained.

  L which shows the brightness of the surface by the SCE method using the above-described color difference meter for the portion of the clue portion 9 that is opaque and the portion of the base material that is transparent other than the clue portion 9 The value was measured. This L value is 45.0 (the average value of n = 3) in the opaque portion, 6.8 in the transparent portion, and the difference between the opaque portion and the transparent portion is large, so that the visibility is high. It turned out to be high.

In the case of using the above-described one, the grasping portion 13 of the release sheet 10 is grasped, the adhesive material 1 is peeled from the release sheet, and the adhesive layer 4 is applied to an adherent portion such as the eyelid while seeing through the transparent portion. Further, the grip portion 13 is removed and the whole is pasted.
After the whole is pasted, the carrier sheet 5 can be peeled off by picking and pulling the clue part 9 that appears to be opaque of the carrier sheet 5, and the surface of the substrate 2 is exposed and pasting is finished. Since the exposed surface of the base material 2 is opaque with the rough surface 3, it can be stuck in an inconspicuous state without shining.

DESCRIPTION OF SYMBOLS 1 Adhesive material 2 Base material 3 Rough surface of base material 4 Adhesive layer 5 Carrier sheet 6 Space 7 Rough surface of carrier sheet 8 Edge part of base material 9 Clue part 10 Release sheet 11 Side edge of release sheet 12 Release sheet Cut line 13 Grip part of release sheet 14 Extension part of carrier sheet

Claims (15)

  A surface of a sheet having flexibility and transparency is formed into a rough surface, and an opaque substrate is formed. A transparent adhesive layer is formed on the other surface of the substrate, and the surface of the substrate is formed. A clue when the carrier sheet is temporarily attached to the substrate to hold the substrate in a self-supporting state and is made transparent, and the carrier sheet is peeled after being attached to the end of the substrate with the adhesive layer. Thus, a patch is formed by forming a clue part that is separated from the surface of the base material and the carrier sheet to make it non-adherent and opaque.   The patch according to claim 1, wherein the surface roughness of the rough surface of the substrate is 0.1 to 1.0 µm in SRa.   The patch according to claim 1 or 2, wherein a surface of the carrier sheet on the substrate surface side is also formed into a rough surface.   The patch according to claim 3, wherein the surface roughness of the rough surface of the carrier sheet is formed to be rougher than the surface roughness of the rough surface of the substrate surface.   The patch according to any one of claims 1 to 4, wherein the clue is formed so as to occupy 5 to 50% of the surface area of the substrate.   The patch according to any one of claims 1 to 5, wherein the base material has an elliptical shape, an oval shape or other rounded corner shape having an aspect ratio of 1: 1.1-1: 5.   The adhesive material according to any one of claims 1 to 6, wherein the adhesive layer of the adhesive material is covered with a release sheet.   The adhesive material according to claim 7, wherein the base material, the pressure-sensitive adhesive layer, and the carrier sheet of the adhesive material have the same shape and the same area, and the release sheet is formed larger than these.   The patch according to claim 8, wherein the release sheet is provided with a cutting line so as to include a portion corresponding to the clue portion from a side edge thereof.   The adhesive material according to claim 8 or 9, wherein a plurality of the adhesive materials are arranged in parallel on one release sheet.   The patch according to any one of claims 1 to 10, wherein the base material is formed of a base material having a Young's modulus of 0.01 to 0.5 GPa.   The patch according to any one of claims 1 to 11, wherein the carrier sheet is formed of a polyester film.   The patch according to any one of claims 1 to 12, wherein information such as the order of peeling and other usages and doses are displayed on the surface of the carrier sheet and / or the release sheet.   The patch according to any one of claims 1 to 13, wherein the adhesive layer of the patch contains a drug.   The patch according to any one of claims 1 to 14, wherein the patch is used by sticking to or around the eyelid.

Images