Adhesive member

Abstract

This adhesive member comprises a sheet-like base material (101), a surface adhesive layer (102), and a surface release sheet (103). The surface release sheet (103) is provided with one back split line (104) that is subjected to a back split treatment to the middle of the surface release sheet (103) in a linear manner from the peripheral end toward the central part. The back split line (104) can be disposed in a linear shape passing through the center (130) of the surface release sheet (103). The length L2 of an extension line (131) of the back split line (104) in an internal area of the surface release sheet (103) from the terminal end (132) of the back split line (104) to the peripheral end (133) of the surface release sheet (103), can be in the range of 1 / 4 to 3 / 4 of the length L1 of the back split line (104).

Description

Adhesive member

[0001] The present invention relates to an adhesive member.

[0002] Conventionally, biological information measuring devices such as deep body temperature sensors and electrocardiogram sensors are sometimes attached to the body so as to be in close contact with the body, and thus an adhesive member for sticking such as double-sided tape may be used. When attaching a sensor to the body using an adhesive member for sticking, first, the release paper on the mounting surface side to the body is peeled off.

[0003] This type of adhesive member needs to be replaced once peeled off, so the adhesive force on the sensor side is often set to 5 N / cm 2 or less, and the difference from the peeling force when peeling off the release paper on the mounting surface side to the body is small. Therefore, it is not easy to peel off the release paper from the adhesive layer on the mounting surface side to the body without the adhesive member peeling off from the sensor, and it often takes time. For the purpose of reducing this labor, a scored release paper is used (Non-Patent Document 1).

[0004] 3M Japan Limited, "Explanation on Processing of 3MTM Tape for Skin Attachment", [Searched on October 25, 2024], (https: / / multimedia.3m.com / mws / media / 1393074O / mmt-customoptionguide-fuze.pdf).

[0005] However, when peeling off the scored release paper, it is necessary to peel off the two scored release papers individually, and it takes time to peel off the release paper.

[0006] The present invention has been made to solve the above problems, and an object thereof is to enable the release paper to be peeled off in a shorter time.

[0007] The adhesive member according to the present invention includes a sheet-like base material, a surface adhesive layer formed to cover the surface of the base material, a surface release sheet covering the surface of the surface adhesive layer, and the surface release sheet has a single scored line that is linearly formed from the peripheral edge toward the central portion and is scored up to the middle of the surface release sheet.

[0008] As explained above, according to the present invention, since the surface release sheet has a single back cut line that runs in a straight line from the peripheral edge towards the center and extends partway along the back, the release paper can be peeled off in a shorter time.

[0009] Figure 1 is a cross-sectional view (a) and a plan view (b) showing the configuration of an adhesive member according to an embodiment of the present invention. Figure 2 is a plan view showing the configuration of another adhesive member according to an embodiment of the present invention. Figure 3 is a plan view showing the configuration of another adhesive member according to an embodiment of the present invention. Figure 4 is a plan view showing the configuration of another adhesive member according to an embodiment of the present invention. Figure 5A is a photograph showing an example of use of another adhesive member according to an embodiment of the present invention. Figure 5B is a photograph showing an example of use of another adhesive member according to an embodiment of the present invention. Figure 5C is a photograph showing an example of use of another adhesive member according to an embodiment of the present invention. Figure 5D is a photograph showing an example of use of another adhesive member according to an embodiment of the present invention.

[0010] Hereinafter, an adhesive member according to an embodiment of the present invention will be described with reference to Figure 1. This adhesive member comprises a sheet-like base material 101, a surface adhesive layer 102, and a surface release sheet 103.

[0011] The surface adhesive layer 102 is formed covering the surface of the substrate 101, and the surface release sheet 103 covers the surface of the surface adhesive layer 102. The surface adhesive layer 102 can be a silicone-based adhesive or an acrylic-based adhesive. In this example, the substrate 101 is provided with a back surface adhesive layer 105 formed on its back surface, and is attached to, for example, the electrode 110 of a sensor by the back surface adhesive layer 105.

[0012] Furthermore, the base material 101, the surface adhesive layer 102, and the surface release sheet 103 have the same shape when viewed in plan from a direction perpendicular to the plane of the base material 101. For example, the base material 101, the surface adhesive layer 102, and the surface release sheet 103 can be circular in plan view. Also, the back adhesive layer 105 has the same shape as the base material 101 in plan view.

[0013] Furthermore, the surface release sheet 103 has a back split line 104 that runs in a straight line from the peripheral edge towards the center, extending partway along the back of the surface release sheet 103. In this example, the back split line 104 is arranged in a straight line passing through the center 130 of the surface release sheet 103. Also, as shown in Figure 2, a mark 106 can be provided near the back split line 104 at the peripheral edge of the surface release sheet 103. By providing the mark 106, the starting position for peeling the surface release sheet 103 can be easily identified.

[0014] Here, the length L2 of the extension line 131 of the back split line 104 in the inner region of the surface release sheet 103, from the end 132 of the back split line 104 to the peripheral edge 133 of the surface release sheet 103, can be in the range of 1 / 4 to 3 / 4 of the length L1 of the back split line 104. By configuring it in this way, tearing of the surface release sheet 103 during peeling can be prevented.

[0015] Furthermore, as shown in Figure 3, the back split line 104a can be placed on a straight line that does not pass through the center of the surface release sheet 103. In this case, the length L2 of the extension line 131a of the back split line 104 in the inner region of the surface release sheet 103, from the end 132a of the back split line 104 to the peripheral edge 133a of the surface release sheet 103, can be set to more than half of the maximum length L3 from the straight line through which the back split line 104 passes to the end of the base material 101 in a direction perpendicular to the back split line 104. By configuring it in this way, tearing of the surface release sheet 103 during peeling can be prevented.

[0016] As shown in Figure 4, a surface release sheet 103a that is rectangular in plan view can be used. Also, for example, as shown in Figure 4(a), a back cut line 104b can be provided that starts from the midpoint of any side of the rectangular surface release sheet 103a. Also, as shown in Figure 4(b), a back cut line 104c can be provided that starts from any vertex of the rectangular surface release sheet 103a.

[0017] Furthermore, the planar shapes of the base material, surface adhesive layer, and surface release sheet are not limited to circles or rectangles; they can be symmetrical with respect to a straight line passing through the center of these components (the base material).

[0018] According to the embodiment of the adhesive member, first, as shown in Figure 5A, the adhesive member is attached to the electrode (not shown) of the sensor 111 with the back adhesive layer (not shown). Using the mark 106 as a guide, the surface release sheet 103 is peeled off from the start of the back split line 104, as shown in Figures 5B and 5C. According to the embodiment, since the surface release sheet 103 is continuous where the back split line 104 is not formed, it can be peeled off in a single peeling operation, and the surface adhesive layer 102 can be exposed, as shown in Figure 5D.

[0019] As described above, according to the embodiment of the present invention, since the surface release sheet has a single back cut line that runs in a straight line from the peripheral edge towards the center and extends partway along the back, the release paper can be peeled off in a shorter time. According to the embodiment of the present invention, the surface release paper can be peeled off in a single operation.

[0020] It should be noted that the present invention is not limited to the embodiments described above, and it is clear that many modifications and combinations can be implemented within the technical concept of the present invention by those with ordinary skill in the art.

[0021] 101...Substrate, 102...Surface adhesive layer, 103...Surface release sheet, 104...Back cut line, 105...Back adhesive layer, 110...Electrode.

Claims

1. An adhesive member comprising: a sheet-like base material; a surface adhesive layer formed to cover the surface of the base material; a surface release sheet covering the surface of the surface adhesive layer; and the surface release sheet having a single back cut line formed by cutting the back partway along the back of the surface release sheet, in a straight line from the peripheral edge toward the center.

2. The adhesive member according to claim 1, further comprising a back adhesive layer formed on the back surface of the base material.

3. An adhesive member according to claim 1, comprising a mark formed near the back cut line at the peripheral edge of the surface release sheet.

4. An adhesive member according to claim 1, wherein the length of the extension of the back cut line in the inner region of the surface release sheet, from the end of the back cut line to the peripheral edge of the surface release sheet, is in the range of 1 / 4 to 3 / 4 of the length of the back cut line.

5. The adhesive member according to claim 1, wherein the back cut line is arranged on a straight line that does not pass through the center of the surface release sheet.

6. The adhesive member according to claim 5, wherein the length from the end of the back cut line to the peripheral edge of the surface release sheet on the extension of the back cut line in the inner region of the surface release sheet is at least half of the maximum length from the straight line through which the back cut line passes to the end of the substrate in a direction perpendicular to the back cut line.

7. An adhesive member according to any one of claims 1 to 6, wherein the base material has a shape that is symmetrical with respect to a straight line passing through the center of the base material.

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