JP5352368B2 - Adhesive sheet or tape for skin application - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive sheet or tape to be stuck to the skin, which can be smoothly cut off by a separator. <P>SOLUTION: For the adhesive sheet or tape to be stuck to the skin, a support, an adhesive layer and the separator are laminated in this order. At at least one divided and cut part of the separator, V-shaped or Y-shaped perforation is continuously formed so that one side of the character V or the vertical line of the character Y is lined up at intervals on a straight line in the dividing and cutting direction. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an adhesive sheet or tape for skin application used in the medical and hygiene field. In detail, it is related with the adhesive sheet or tape for skin sticking with the separator which has a perforation.

  The adhesive sheet or tape for skin application used for medical and hygiene materials is used for the treatment of wounds that occur in the body. The purpose of attaching these sheets or tapes is to cover the wound area, isolate the wound from contact with the outside world, protect the wound, prevent infection from the wound, and further alleviate the pain. It is said. Moreover, when fixing a catheter, gauze, absorbent cotton, etc., the adhesive sheet or tape for skin sticking is used.

  The adhesive sheet or tape for skin application is used in the form of an emergency bond, a dressing material, an adhesive bandage, a tack sheet, and the like. The support for the adhesive sheet or tape for skin application is a film, non-woven fabric, or woven fabric, and is composed of at least one component such as polyvinyl chloride resin, olefin resin, polyester resin, cotton, acetate, or polyurethane. Has been. These supports include a single layer, a laminated structure, and a structure in which two or more kinds of supports are interposed at specific intervals.

  In the adhesive sheet or tape for skin application, an adhesive layer for skin application is usually laminated on one side of the support. Since the adhesive sheet or tape for skin application used in surgery, dialysis and the like is used in a state of wearing gloves, it is desired to have good operability. In addition, when used in areas where skin expansion and / or follow-up of joint bending is also required, an elastic support is used and stored in a state that does not expand or contract during the storage period until use. There is a need to. As a form of a sheet or a tape that satisfies such requirements, there is one in which an adhesive surface appears by pasting a non-stretchable separator to the adhesive surface and peeling the separator during use. And it is desirable for the separator to be provided with some cutting part so that it can be easily peeled off. As an aspect of the cutting part, one in which separators are overlapped, one in which separators are attached, or one in which perforations are introduced linearly are known.

  When the separators are overlapped, the operation of peeling the separators is easy, but the manufacturing operation for overlapping the separators becomes complicated. That is, at the time of manufacture, two separators are required to provide the overlapping portion, and it is necessary to adjust the width of the overlapping portion. In addition, since the overlapped portions are thick, the thickness does not become uniform when stacked, and there are problems in terms of manufacturing and handling such as poor stability.

  In the case of attaching the separator, the operation of peeling the separator is easy, but the manufacturing operation for attaching the separator is very complicated. There are two types of manufacturing methods. After separating the separator once attached to the entire surface to an appropriate length and cutting the peeling portion, another separator is attached to the peeling portion so that no gap is formed. In this method, only the separator is completely cut while the separator is stuck to the adhesive layer. The latter method looks simple at first glance, but since the thickness of the separator varies, there is a possibility that the pressure-sensitive adhesive layer and the support may be cut.

  The method of introducing the perforation in a straight line as the separator cutting portion is a relatively simple method because the separator only needs to be partially cut as an operation for introducing the perforation. However, in the case of a separator made of cloth or paper, since the fibers have a random structure, there is no directionality of the fibers. Moreover, in the case of a separator made of a resin film, there is no directionality unless orientation is performed by a stretching process. Therefore, when the separator is cut, if the cutting force direction is different from the direction of the perforation at the interval between the perforations, the cutting line is separated from the perforation and is cut linearly. As a result, the separator is not cut smoothly. Further, there has been a problem that delamination or fraying occurs in the separator, and the separator cannot be peeled cleanly.

Patent Document 1 or Patent Document 2 discloses a method of introducing a special perforation in order to cut an elastic wrap wound in a roll shape without using a cutting tool such as scissors. In these prior arts, by introducing regular straight perforations or V-shaped or Y-shaped perforations at regular intervals in the cutting direction of a roll-shaped elastic wrap such as an elastic bandage. Discloses a wrap that is easy to cut. However, there is no description suggesting application to a separator that is usually inelastic and has the above-mentioned specific problems.
Accordingly, there is a need for a pressure-sensitive adhesive sheet or tape that is easy to manufacture and that can be easily peeled off when used, and that has a separator attached thereto.

Japanese National Patent Publication No. 8-505557 JP-T 9-502111

  The problem to be solved by the present invention is to provide a pressure-sensitive adhesive sheet or tape that can be cut smoothly by a separator.

  As a result of intensive studies in order to solve the above problems, the inventors of the present invention have applied the adhesive sheet for sticking to the skin or the separator of the tape to which the separator is bonded to the adhesive layer part of the support having the adhesive layer. It has been surprisingly found that when a cut portion with a V-shaped or Y-shaped perforation is introduced, a separator with good operability is obtained. In addition, by making the angle of the other side with respect to the side or the vertical line aligned on the straight line in the divided cutting direction of the V-shaped or Y-shaped perforations into a specific range, it is possible to obtain a separator with better linear cutting performance. I found it. Based on the above results, the present inventors have completed the present invention.

That is, the present invention relates to the following.
(1) A support sheet, a pressure-sensitive adhesive layer, and a pressure-sensitive adhesive sheet or tape for laminating a separator in this order, and having a V-shaped or Y-shaped perforation in at least one divided cut portion of the separator, A pressure-sensitive adhesive sheet or tape for skin application, in which one side of the V-shaped or Y-shaped vertical line is continuously arranged so as to be arranged on a straight line in the divided cutting direction.
(2) The adhesive sheet or tape for skin sticking according to (1), wherein the other side of the V-shape has an angle of 90 ° or more and less than 180 ° with respect to the one side.
(3) The adhesive sheet or tape for skin sticking according to (1), wherein the other two sides constituting the Y shape have an angle of 90 ° or more and less than 180 ° with respect to the vertical line.
(4) The ratio of the length of the other side having an angle to the length of the side or vertical line aligned on the straight line in the divided cutting direction is 1: 1 to 1:10, The adhesive sheet or tape for skin sticking in any one of 1)-(3).
(5) The adhesive sheet or tape for skin application according to any one of (1) to (4), wherein a cut is present at an end of the separator on the cutting line.

  The pressure-sensitive adhesive sheet or tape of the present invention has a perforation having a unique shape formed on the separator as a dividing line, so that when the separator is peeled off, delamination and fraying will not occur even if it is cut at the dividing line, Can be cut neatly without requiring force. Therefore, for example, even when used while wearing gloves, such as during surgery or dialysis, the operation of peeling the separator becomes easy. As a method for forming the perforation as the dividing line of the separator, for example, a conventional linear perforation blade may be changed to a V-shaped or Y-shaped blade in the present invention, and may be performed by a known method. A pressure-sensitive adhesive sheet or tape that can be easily and easily peeled off can be obtained.

It is a top view which shows the aspect of the division part formed in the adhesive sheet in Example 1, or the separator of a tape. It is a top view which shows the aspect of the division part formed in the adhesive sheet in Example 2, or the separator of a tape. It is a top view which shows the aspect of the division part formed in the adhesive sheet in Example 3, or the separator of a tape. It is a top view which shows the aspect of the division part formed in the adhesive sheet in the comparative example 1, or the separator of a tape. It is a top view which shows the aspect of the division part formed in the adhesive sheet in the comparative example 2, or the separator of a tape. It is a top view which shows the aspect of the division part formed in the adhesive sheet in the comparative example 3, or the separator of a tape.

  The present invention is an adhesive sheet or tape for skin application in which a support, an adhesive layer, and a separator are laminated in this order, and has a V-shaped or Y-shaped perforation at at least one divided cut portion of the separator. The present invention provides a pressure-sensitive adhesive sheet or tape for skin application in which one side of the V-shape or a Y-shaped vertical line is continuously arranged so as to be arranged at intervals on a straight line in the divided cutting direction. The present invention is different from the conventional method in that a perforation having a unique shape is introduced into the separator as the divided portion.

The adhesive sheet or tape for skin application used in this specification means a sheet or tape in which an adhesive having skin compatibility is laminated on a support.
The support for an adhesive sheet or tape for skin application (hereinafter also referred to as an adhesive sheet or tape) has elasticity that can follow the expansion and contraction of the skin and / or the bending of the joint, and ventilation that does not inhibit the evaporation of water vapor from the skin. What has a property and moisture permeability is preferable. Furthermore, what laminated | stacked the polyurethane film which has moisture permeability as a support body which has a stretching property is preferable.

  The stretchability of the stretchable support means the stretchability of a level that can follow the stretch when the sticking portion stretches by 20 to 50% with the movement of the bending portion of the body. The support having elasticity is preferably one having elasticity in at least one direction, and more preferably one having elasticity in two directions.

  The stretchable base material is not particularly limited, and examples thereof include woven fabric, knitted fabric, net, non-woven fabric, etc., but considering moisture permeability, skin followability, flexibility, etc., knitted fabric and net are preferable. . Examples of stretchable base materials include stretch yarns, textured yarns, and conjugates that have been subjected to special processing on fibers made of nylon, polyester, etc. with “from S” or “from Z”. Woven fabrics and knitted fabrics knitted with highly elastic synthetic yarns such as gate yarns and polyurethane elastic yarns alone, or such synthetic yarns and elastic fibers such as polyester fibers, cotton, rayon, polypropylene, polyethylene, cellulose, etc. Examples thereof include woven fabrics and knitted fabrics knitted by mixing small fibers. The knitting method is not particularly limited, and examples thereof include vertical knitted fabrics including tricot knitted fabric, raschel knitted fabric, and Milanese knitted fabric, and knitted fabrics including flat knitted fabric and circular knitted fabric. The base material preferably has elasticity, stretchability, and moisture permeability that can satisfactorily exhibit effects such as followability and fixability that are important for medical and hygiene materials.

  The thickness of the support can be appropriately determined depending on the site where the adhesive sheet or tape is applied, the characteristics of the support, etc., but considering the followability to the expansion and contraction of the skin, it is preferably 0.05 to 5.0 mm. More preferably, the thickness is 1 to 4.5 mm.

  As urethane of the polyurethane film laminated on the side opposite to the pressure-sensitive adhesive layer side of the support, urethane of ether type or ester type is preferable. The thickness of the polyurethane film is preferably 3 to 40 μm, more preferably 5 to 35 μm. When the thickness of the polyurethane film is less than 3 μm, the polyurethane film has moisture permeability and stretchability equivalent to those of the support, but the strength of the polyurethane film itself is lowered, so that it is easily broken. On the other hand, if the thickness exceeds 40 μm, the polyurethane film becomes thick and moisture permeability cannot be obtained sufficiently. If it is applied for a long time, the skin may become stuffy and irritated. In addition, it is not preferable because a sense of inconvenience arises and an uncomfortable feeling may be felt at the time of wearing.

  As a method of laminating the polyurethane film on the surface of the support having elasticity, a method known per se may be used, and examples thereof include thermal lamination and adhesion with an adhesive, and a method using an adhesive is simple. The adhesive used for bonding is not particularly limited as long as it can bond a stretchable support and a polyurethane film. However, in view of maintaining affinity, breathability, moisture permeability, and the like, urethane type An adhesive is preferred. The urethane-based adhesive is not particularly limited as long as it is an adhesive having a urethane bond. For example, an adhesive made of a polyether-based or polyester-based urethane resin is preferable.

  As the pressure-sensitive adhesive layer laminated on the support, a pressure-sensitive adhesive well known in the fields of medical and hygiene materials can be used. For example, an acrylic adhesive, a rubber adhesive, a synthetic rubber adhesive, a vinyl ether adhesive, or a silicone adhesive can be used. Furthermore, a tackifier or a cross-linking agent may be added to the adhesive to adjust the adhesive properties. Moreover, when peeling an adhesive tape or a sheet | seat from skin, since the keratin on the skin surface is hard to be damaged and it is hard to get rash, a gel adhesive is preferable. The gel pressure-sensitive adhesive is a pressure-sensitive adhesive in which a large amount of liquid component or paste component is contained in the pressure-sensitive adhesive and insolubilized in a gel state, and can be manufactured by the method disclosed in Japanese Patent Laid-Open No. 6-319793. it can. The pressure-sensitive adhesive layer can be laminated on the support by a method known per se. For example, as described in the examples, the pressure-sensitive adhesive layer is formed by applying a pressure-sensitive adhesive to the release-treated surface of the release paper. Then, after bonding the cloth surface of the support to the surface of the pressure-sensitive adhesive layer, a method of peeling the release paper or a method of directly applying and forming the pressure-sensitive adhesive on the support can be used.

  As a method for applying the pressure-sensitive adhesive, it can be applied to the entire surface of the support cloth or partially. When applying partially, it is preferable that it can apply to a dot shape or a strip shape, for example. In the case of strips, for example, linear coating or corrugated coating may be mentioned, but any shape may be used as long as a space that functions as a gas ventilation path, that is, a space between strips is secured. The wavy application is preferable because there is little change over time in the cross-sectional area of the interstitial space being applied to the skin. Furthermore, in order to ensure air permeability, a small hole may be formed by perforating an adhesive sheet or tape.

  Although the thickness after drying of an adhesive layer is suitably determined by the sticking site | part of the adhesive sheet or tape of this invention, or the kind of adhesive, 15-150 micrometers is preferable and 20-120 micrometers is more preferable.

  The separator used in this specification is a release paper that covers the surface of the pressure-sensitive adhesive layer until just before use in order to prevent contamination of the surface of the pressure-sensitive adhesive sheet or tape of the present invention. As the separator, a separator generally used for an adhesive sheet or a tape attached to the skin can be used. Specifically, one side or both sides of high-quality paper, glassine paper, or parchment paper is coated with a release agent having a release performance such as silicone, high-quality paper is anchored with resin, or polyethylene is laminated. The thing etc. which coated the release agent which has peeling performances, such as a silicone, on the single side | surface or both surfaces of things are mentioned.

  In order to simplify the separation of the separator, it is preferable to introduce a divided cut portion in at least one location of the separator. If the separator is divided along the divided cutting portion, the separator is bonded to a part of the pressure-sensitive adhesive surface of the pressure-sensitive adhesive sheet or tape, and the pressure-sensitive adhesive surface appears in the peeled portion. If the finger is used to hold the portion where the separator is bonded, the finger does not touch the adhesive surface, and therefore the adhesive surface is not contaminated before being applied to the skin. In addition, the operation of the pressure-sensitive adhesive sheet or tape can be simplified even when wearing gloves. There may be two or more divided cutting portions, and the formation location of the divided cutting portions is arbitrarily determined according to the shape and size of the separator and the purpose of use.

  As an aspect of the division | segmentation cutting | disconnection part of a separator, it is a V-shaped or a Y-shaped perforation. By separating the V-shaped or Y-shaped perforations so that one V-shaped side or Y-shaped vertical line is aligned in a straight line at intervals in the divided cutting direction, the separator is cleanly linear. Will be disconnected.

  Furthermore, the other side of the V-shaped V-shape formed with the other side of the V-shape having an angle of 90 ° to less than 180 ° with respect to one side or the Y-shape is 90 ° to 180 ° with respect to the vertical line. A Y shape with an angle of less than is preferred. The other sides may have the same angle or different angles with respect to the vertical line, but preferably have the same angle. When the other two sides have an angle of 90 ° with respect to the vertical line, the perforation is T-shaped, but in the present invention, it is included in the Y-shape. If these V-shaped or Y-shaped perforations having a specific angle range are introduced into the divided cutting portion, even when the cutting force is directed in a direction other than the dividing direction at the interval portion, the other side portion is cut. As a result, the dividing direction can be corrected to the original direction, so that the cutting line can be linear as a whole. When the angle is 180 ° (both sides are 180 ° in the case of Y-shape), the perforation becomes a straight line. In addition, when the angle is less than 90 °, smooth cutting cannot be performed.

  It is preferable that the lengths of the sides and the intervals arranged so as to be aligned on a straight line are correlated. The length of the interval is an important factor that defines the ease of cutting the separator. When the interval is long, it becomes difficult to cut the separator, and when the interval is too short, the manufacturing process becomes difficult. Accordingly, the length of the interval is preferably 1 to 5 mm, and more preferably 1 to 3 mm. Moreover, 1-5 mm is preferable and, as for the length of each side located in a line on a straight line, 1-3 mm is more preferable. Furthermore, when the length of the side aligned on the straight line is 1, the length of the other side of the V-shaped or Y-shaped is preferably 1: 1 to 1:10, preferably 1: 1 to 1: 8. More preferred. In the case of Y, the lengths of the other sides may be the same or different, but are preferably the same. When the length of the other side is smaller than 1, when a cutting force is applied in a direction different from the cutting direction, the perforation is difficult to correct the direction of the force, and delamination and fraying are likely to occur. Further, when the length of the other side is larger than 10, it tends to be difficult to cut smoothly.

The separator in the pressure-sensitive adhesive sheet or tape of the present invention is along the side aligned on the V-shaped or Y-shaped straight line, and when the perforation is V-shaped, the other side direction forms an angle with respect to the side aligned on the straight line. The sheet is cut from the separator end of the sheet or tape, and in the case of Y-shape, the sheet is cut from the opposite end of the sheet or tape in the two-side direction.
It is preferable to provide notches with perforations at both ends of the separator, at least at the cutting start end, of the sheet or tape on the cutting line defined by the sides aligned on the V-shaped or Y-shaped straight line.
The pressure-sensitive adhesive sheet or tape of the present invention combines a V-shaped and Y-shaped perforation having a specific shape with the separator and the cut so that the cutting operation is extremely easy, and the state of the cut portion is also free from delamination and fraying. This is an effect.

  V-shaped or Y-shaped perforations may be formed by, for example, a remipro method using a continuous blade shape on a plane, a rotary method using a cylindrical blade shape, a laser irradiation method, or the like This can be done.

  The pressure-sensitive adhesive sheet or tape of the present invention may have any shape, and examples thereof include a strip shape, a square shape, and a round shape. Further, the size of the pressure-sensitive adhesive sheet or tape may be any size.

  Examples of the present invention will be described below and will be described in more detail. However, the present invention is not limited to these examples, and various applications are possible without departing from the technical idea of the present invention.

Example 1
In an inert gas atmosphere, an acrylic polymer obtained by copolymerizing 96 parts by weight of 2-ethylhexyl acrylate and 4 parts by weight of acrylic acid was mixed with 50 parts by weight of octyldodecyl myristate, trifunctional isocyanate 0 2 parts by weight were blended in ethyl acetate to obtain an acrylic pressure-sensitive adhesive. This acrylic pressure-sensitive adhesive was coated on a silicone-treated release paper so that the thickness of the pressure-sensitive adhesive after drying was 50 μm.
On the other hand, a polyester urethane film having a thickness of 10 μm was dry-laminated on a stretchable knitted fabric having a thickness of 350 μm prepared by smoothly knitting polyester yarn, thereby preparing a support. After bonding the knitted fabric surface of the support and the pressure-sensitive adhesive layer on the release paper, the release paper was peeled off. Next, as described in Table 1, the Y-shaped vertical line length is 3 mm, the length of the other two sides is 3 mm, and the perforation interval is 1 mm. A Y-shaped perforation with an angle of 95 ° on the other side with respect to the vertical line arranged on the straight line, and a straight line with a length of 2 mm at the end of the separator opposite to the Y-shaped vertical line. The separator provided with the cut was stuck, and the adhesive sheet or tape for skin sticking of the present invention as shown in FIG. 1 was obtained.

Example 2
In the same manner as in Example 1, an acrylic pressure-sensitive adhesive was obtained. This acrylic pressure-sensitive adhesive was coated on a silicone-treated release paper so that the thickness of the pressure-sensitive adhesive after drying was 40 μm.
On the other hand, a polyester base urethane film having a thickness of 20 μm was dry-laminated on a stretchable knitted fabric having a thickness of 200 μm prepared by smoothly knitting nylon yarn to prepare a support. After bonding the knitted fabric surface of the support and the pressure-sensitive adhesive layer on the release paper, the release paper was peeled off. Next, as described in Table 1, separately prepared V-shaped with a side length of 1 mm, a length of the other side of 10 mm, and a perforation interval of 3 mm arranged on a V-shaped straight line. A V-shaped perforation having an angle of 120 ° with respect to a side aligned on a straight line in the direction, and a straight line having a length of 3 mm at the end of the separator in the direction opposite to the side aligned on the V-shaped straight line A separator provided with a slit was attached to obtain a pressure-sensitive adhesive sheet or tape for skin application according to the present invention as shown in FIG.

Example 3
In the same manner as in Example 1, an acrylic pressure-sensitive adhesive was obtained. This acrylic pressure-sensitive adhesive was applied in a strip shape on a silicone-treated release paper so that the thickness of the pressure-sensitive adhesive after drying was 20 μm.
On the other hand, a polyether urethane film having a thickness of 5 μm was dry laminated on a stretchable knitted fabric having a thickness of 150 μm prepared by smoothly knitting nylon yarn, thereby preparing a support. After bonding the knitted fabric surface of the support and the pressure-sensitive adhesive layer on the release paper, the release paper was peeled off. Next, as described in Table 1, the Y-shaped vertical line length is 1 mm, the other two sides are 5 mm long, and the perforation interval is 2 mm. A Y-shaped perforation having an angle of 160 ° on the other side with respect to the vertical line arranged on the straight line, and a 2 mm-long straight line at the end of the separator opposite to the Y-shaped vertical line. The separator which formed the division | segmentation part which has an incision in the center part and the intermediate part of a center part and an edge part was stuck, and the adhesive sheet or tape for skin sticking of this invention as shown in FIG. 3 was obtained. .

Comparative Example 1
In the same manner as in Example 1, an acrylic pressure-sensitive adhesive was obtained. This acrylic pressure-sensitive adhesive was coated on a silicone-treated release paper so that the thickness of the pressure-sensitive adhesive after drying was 40 μm.
On the other hand, a polyether urethane film having a thickness of 50 μm was dry-laminated on a stretchable knitted fabric having a thickness of 200 μm prepared by smoothly knitting nylon yarn to prepare a support. After bonding the knitted fabric surface of the support and the pressure-sensitive adhesive layer on the release paper, the release paper was peeled off. Next, the separator which did not form the division part prepared separately was stuck, and the adhesive sheet or tape for skin sticking as shown in FIG. 4 was obtained.

Comparative Example 2
In the same manner as in Example 1, an acrylic pressure-sensitive adhesive was obtained. This acrylic pressure-sensitive adhesive was coated on a silicone-treated release paper so that the thickness of the pressure-sensitive adhesive after drying was 40 μm.
On the other hand, a polyether urethane film having a thickness of 50 μm was dry-laminated on a stretchable knitted fabric having a thickness of 200 μm prepared by smoothly knitting nylon yarn to prepare a support. After bonding the knitted fabric surface of the support and the pressure-sensitive adhesive layer on the release paper, the release paper was peeled off. Next, as described in Table 1, a linear perforation having a straight line length of 1 mm and a perforation interval of 1 mm prepared separately, and a linear notch having a length of 2 mm are provided at the end of the separator. A separator was attached to obtain a pressure-sensitive adhesive sheet or tape for skin application as shown in FIG.

Comparative Example 3
In the same manner as in Example 1, an acrylic pressure-sensitive adhesive was obtained. This acrylic pressure-sensitive adhesive was coated on a silicone-treated release paper so that the thickness of the pressure-sensitive adhesive after drying was 50 μm.
On the other hand, a polyester urethane film having a thickness of 30 μm was dry-laminated on a stretchable knitted fabric having a thickness of 350 μm prepared by smoothly knitting polyester yarn, thereby preparing a support. After bonding the knitted fabric surface of the support and the pressure-sensitive adhesive layer on the release paper, the release paper was peeled off. Next, as described in Table 1, a separately prepared arrow having a vertical line length of 10 mm, a length of the other two sides of 1 mm, and a perforation interval of 0.5 mm is used. An arrow-shaped perforation whose angle between the other sides of the vertical line aligned on the straight line is 30 °, and a linear notch with a length of 2 mm at the end of the separator opposite to the vertical line of the arrow. The separator which formed the part which has two in the center part and the intermediate part of a center part and an edge part was stuck, and the adhesive sheet or tape for skin sticking as shown in FIG. 6 was obtained.

Number of perforations installed: number of split cutting lines per adhesive sheet or tape.
Angle: An angle formed by the other side with respect to a side or a vertical line arranged on a straight line in the divided cutting direction.
Ratio: The ratio of the length of the other side to the length of the side or vertical line aligned on the straight line in the divided cutting direction. The length of the side that forms an angle is shown with the length of the side in the divided cutting direction being 1.
End: It is described when there is a cut for starting cutting at one end of the separator;

Test example 1
(Hand cutting)
About Examples 1-3 and Comparative Examples 1-3, the cutting | disconnection state of the separator at the time of cutting a separator by hand was evaluated visually (n = 10). The results are evaluated in 5 stages and are shown in Table 2 as an average value of n = 10.

(5-level evaluation criteria)
5: Completely cut into a straight line. No delamination, no confusion.
4: Cut substantially linearly. No delamination, no confusion.
3: Cut in a state close to a straight line. No delamination, no confusion.
2: Cut in a state slightly close to a straight line. Some delamination and fraying are confirmed.
1: The cutting state is not a straight line. Derami and hot spots are confirmed.

Test example 2
As a monitor of 30 years of age or older, 20 volunteers evaluated the cutability of the separator according to the following criteria for Examples 1 to 3 and Comparative Examples 1 to 3.

(Initial hand cutting)
The initial hand cutting property, that is, the ease of cutting at the end of the separator was evaluated. The evaluation is based on four levels: “very easy”, “no problem”, “slightly difficult”, and “difficult”. Among the above-mentioned steps, “very simple” and “no problem” are regarded as effective because the operability is good, and the effective rate is also shown in Table 3.

(Operability)
The operability of the separator cutting was evaluated in four levels, “very easy”, “no problem”, “slightly difficult”, and “difficult”. Among the above-mentioned steps, “very simple” and “no problem” are regarded as effective as the operability is good, and the effective rate is also shown in Table 4.

  The pressure-sensitive adhesive sheet or tape of the present invention has a perforation having a unique shape formed on the separator as a dividing line, so that when the separator is peeled off, delamination and fraying will not occur even if it is cut at the dividing line, Can be cut neatly without requiring force. Therefore, for example, even when used while wearing gloves, such as during surgery or dialysis, the operation of peeling the separator becomes easy. The perforation as the dividing line of the separator may be carried out by replacing the conventional linear sewing blade with the V-shaped or Y-shaped blade in the present invention, and is easy to manufacture and peel-adhesive pressure-sensitive adhesive sheet Or a tape will be obtained.

Claims (4)

Support, an adhesive layer, and a skin sticking adhesive sheet or tape was laminated separator in this order, the perforations of the Y-shaped split cut portion of the at least one position of the separator, a vertical line of those said Y-shaped However, the ratio of the length of the Y-shaped vertical line to the length of the other side having an angle is 1: 1 to 1:10 . Adhesive sheet or tape for skin application.   The adhesive sheet or tape for skin sticking according to claim 1, wherein the other two sides constituting the Y-shape have an angle of 90 ° or more and less than 180 ° with respect to the vertical line. The adhesive sheet or tape for skin sticking of Claim 1 or 2 with which a notch | incision exists in the edge part on the cutting line in the peripheral part of a separator. The adhesive sheet or tape for skin sticking of any one of Claims 1-3 whose length of the said space | interval is 1-5 mm.

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