JP2024055318A - Double-sided tape with separator - Google Patents

Abstract

To enhance sticking workability of a double-sided tape and reduce a used amount of a separator.SOLUTION: A double-sided tape 1 with a separator includes double-sided tapes 3 where first adhesive layers 4a and second adhesive layers 4b are formed on both surfaces of base materials 4, and separators 2 where first release layers 5a and second release layers 5b are formed on both surfaces, in which one surface of the separator 2 is stuck to one surface of the double-sided tape 3, wherein first peeling force between the first release layers 5a of the separators 2 and the first adhesive layers 4a of the double-sided tapes 3 is set to be larger than second peeling force between the second release layers 4b of the separators 2 and the second adhesive layers 5b of the double-sided tapes 3.SELECTED DRAWING: Figure 3

Description

The present invention relates to a double-sided tape with a separator, which has an adhesive layer on each side of a substrate and a separator attached to the adhesive layer on one side.

As an example of double-sided tape used in various industrial fields, Patent Document 1 discloses a double-sided tape in which adhesive layers are formed on both sides of a tape substrate, and the surface of each adhesive layer is covered with a release paper that acts as a separator.

JP 2000-265132 A

When using the double-sided tape of Patent Document 1, one of the release papers covering the adhesive layers on both sides of the base material is peeled off, and the exposed adhesive layer on one side is applied to the target area, after which the other release paper is peeled off and the target area is attached to the exposed adhesive layer on the other side.

As such, when applying the tape, it is necessary to peel off both release papers that cover the adhesive layers on both sides of the base material, which is a time-consuming process.

In addition, after being peeled off from both sides of the substrate, the release paper is discarded as garbage, resulting in a waste of resources.

The present invention was developed in response to this situation, and aims to improve the ease of application of double-sided tape while reducing the amount of separator used.

In order to achieve the above objective, the present invention is configured as follows:

(1) A double-sided tape with a separator according to the present invention comprises a double-sided tape having first and second adhesive layers formed on both sides of a substrate, and a separator having first and second release layers formed on both sides,
a first peel force between the first release layer of the separator and the first adhesive layer of the double-sided tape is set to be larger than a second peel force between the second release layer of the separator and the second adhesive layer of the double-sided tape;
One surface of the double-sided tape is attached to one surface of the separator.

According to the double-sided tape with separator of the present invention, the separator is attached to one side of the double-sided tape. Therefore, unlike a configuration in which separators are attached to both sides of the double-sided tape, there is no need to peel off the separators from both sides before use, and the double-sided tape can be used simply by peeling one side from the separator, improving user operability. In addition, since the separator only needs to be attached to one side of the double-sided tape, the amount of separators discarded as waste can be reduced, thereby reducing resource waste.

Furthermore, the peel force between the release layer of the separator and the adhesive layer of the double-sided tape is set to be either large or small, so the peel force can be designed not just from the adhesive layer, but from both the release layer and the adhesive layer, and the balance between large and small peel forces can be adjusted to an appropriate balance depending on the application, etc.

(2) In one embodiment of the present invention, the separator is long and the double-sided tape is a plurality of pieces of double-sided tape formed into a predetermined shape, and each of the plurality of pieces of double-sided tape is attached to one side of the separator along the longitudinal direction of the separator.

In this embodiment, multiple pieces of double-sided tape of a predetermined shape are attached to a long separator along the longitudinal direction of the separator. This eliminates the need to cut the double-sided tape to a predetermined shape, and the double-sided tape pieces can be peeled off from the separator and used as is. This improves the user's workability when using the double-sided tape.

(3) In a preferred embodiment of the present invention, the first release layer is formed on the one surface of the separator, the first adhesive layer is formed on the one surface of the double-sided tape, and the double-sided tape with separator is wound into a roll.

According to this embodiment, the first adhesive layer on one side of the double-sided tape is attached to the first release layer on one side of the separator, and when wound into a roll, the second adhesive layer on the other side of the double-sided tape adheres to the second release layer on the other side of the separator. In the configuration according to the present invention, the first peeling force between the first release layer and the first adhesive layer is set to be greater than the second peeling force between the second release layer and the second adhesive layer. As a result, when the double-sided tape with separator is unwound from the rolled state and used, the second adhesive layer of the double-sided tape is easily peeled off from the second release layer of the separator, and the double-sided tape with separator can be smoothly unwound and used.

(4) In one embodiment of the present invention, the first adhesive layer has a stronger adhesive strength than the second adhesive layer.

According to this embodiment, of the first adhesive layer and the first release layer that constitute the large peeling force, the first adhesive layer has a greater adhesive force than the second adhesive layer, so that when designing the first peeling force, it is easy to adjust it so that it is a peeling force greater than the second peeling force. Similarly, when designing the second peeling force, it is easy to adjust it so that it is a peeling force smaller than the first peeling force.

(5) In another embodiment of the present invention, the first peeling force is 110 to 150 mN/50 mm and the second peeling force is 30 to 50 mN/50 mm at a peeling speed of 300 mm/min.

This embodiment is suitable when the first peeling force is required to be significantly greater than the second peeling force.

(6) In yet another embodiment of the present invention, the first peel force is 700 to 800 mN/50 mm and the second peel force is 200 to 300 mN/50 mm at a peel speed of 80 m/min.

This embodiment is suitable for applications requiring a peel force that is significantly greater than the second peel force, such as high-speed application using an automatic application device.

According to the present invention, the separator is attached to one side of the double-sided tape, so it can be used simply by peeling off the separator from one side. This improves user operability compared to a configuration in which the separator is attached to both sides of the double-sided tape, and reduces the amount of separators discarded as waste, thereby reducing resource waste.

Furthermore, since the peel strength can be designed not only from the adhesive layer, but from both the release layer and the adhesive layer, it is easy to achieve an appropriate balance between large and small peel strength depending on the application, etc.

FIG. 1 is a schematic cross-sectional view of a portion of a separator-attached double-sided tape according to one embodiment of the present invention. FIG. 2 is a perspective view of a double-sided tape with a separator wound in a roll. FIG. 3 is a schematic cross-sectional view of a portion of the separator-attached double-sided tape in a rolled state. FIG. 4 is a diagram for explaining a state in which a separator-attached double-sided tape piece is used. FIG. 5 is an enlarged view of section A of FIG. FIG. 6 is a schematic diagram showing the attachment of a double-sided tape piece from a separator-attached double-sided tape to a cardboard tube. FIG. 7 is a perspective view of a double-sided tape with a separator wound in a roll. FIG. 8 is a diagram showing the application of a double-sided tape piece to a wall. FIG. 9 is a schematic cross-sectional view of a portion of a double-sided tape with a separator. FIG. 10 is a diagram showing the application of a double-sided tape piece to a wall. FIG. 11 is a diagram showing how POP cards are attached to product shelves.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings, with a plurality of items being explained in order.
<Configuration of double-sided tape with separator>
FIG. 1 is a schematic cross-sectional view of a portion of a separator-attached double-sided tape according to one embodiment of the present invention.

In this embodiment, the separator-attached double-sided tape 1 has a double-sided tape attached to one side of a long separator 2. In this embodiment, the separator-attached double-sided tape 1 is configured as a plurality of double-sided tape pieces 3 formed in a predetermined shape, in this example, rectangular. These double-sided tape pieces 3 are attached at a constant pitch along the longitudinal direction of the separator 2.

Each double-sided tape piece 3 has a first adhesive layer 4a and a second adhesive layer 4b formed on both sides of a rectangular base material 4.

The material of the substrate 4 is not particularly limited, but may be, for example, paper such as fine paper, glassine paper, or kraft paper, or resin film such as PET film, polypropylene film, or polyimide film; in this embodiment, fine paper is used.

Examples of adhesives for the first adhesive layer 4a and the second adhesive layer 4b include acrylic adhesives, urethane adhesives, rubber adhesives, silicone adhesives, etc.

In this embodiment, the first adhesive layer 4a is a strong adhesive layer made of a strong adhesive, and the second adhesive layer 4b is a weak adhesive layer made of a weak adhesive.

The separator 2 is a long support 5 of a constant width, on both sides of which a first release layer 5a and a second release layer 5b are formed.

As with the double-sided tape piece 3, paper, resin film, etc. can be used as the support 5 for the separator 2.

Examples of the release agent for the first release layer 5a and the second release layer 5b of the separator 2 include silicone resin, alkyd resin, silicone/alkyd copolymer resin, polyethylene, polypropylene alone or in mixture, silicone/PVA mixture, etc.
<Double-sided tape with separator wound into a roll>
As shown in Fig. 2, this long double-sided tape 1 with a separator is wound in a roll shape with the double-sided tape piece 3 facing outward. In this rolled state, the second adhesive layer 4b of the double-sided tape piece 3 is exposed as the outermost layer. In such a case, this double-sided tape 1 with a separator can be provided to a user with the outermost layer covered (at least one circumference covered) by the separator 2 to which the double-sided tape piece 3 is not attached.

Alternatively, the outermost layer may be provided to the user with at least one circumference covered by another separator.

When the separator-attached double-sided tape 1 is wound into a roll, the second adhesive layer 4b of the double-sided tape piece 3 is in a laminated state in close contact with the second release layer 5b of the separator 2, as shown in Fig. 3. In Fig. 3, the lower side is the inner peripheral side, which is the winding core side, and the upper side is the outer peripheral side.
<Use of double-sided tape with separator by automatic application device>
Each double-sided tape piece 3 of the separator-attached double-sided tape 1 of this embodiment is used to fix the starting end of a continuous body, such as a long sheet, to the outer peripheral surface of a paper tube, which serves as a winding core, when the continuous body is wound into a roll around the paper tube.

Figure 4 shows the initial state of winding up the double-sided tape piece 3 around a paper tube to explain how it is used, and Figure 5 is an enlarged view of section A in Figure 4.

Figures 4 and 5 show an example in which a continuous label product 7 is wound around a paper tube 6, which is the core of the winding. This label product 7 is composed of a large number of labels 9 attached at a fixed pitch to release paper 8, which is a long, fixed-width separator.

The double-sided tape piece 3 of the separator-attached double-sided tape 1 of this embodiment is attached to the outer surface of the paper tube 6 around which the label product 7, which is the target area for attachment, is wound, using an automatic attachment device (not shown). At this time, the double-sided tape piece 3 is attached to the outer surface of the paper tube 6 by the first adhesive layer 4a on the separator 2 side, as shown in FIG. 6, and the first adhesive layer 4a side is attached to the paper tube 6, as shown in FIG. 5.

Then, the release paper 8 on the starting end side of the long label product 7, which is the object to be affixed, is affixed to the second adhesive layer 4b of the double-sided tape piece 3, thereby fixing the starting end of the continuous label product 7 to the outer circumferential surface of the paper tube 6.

After the starting end is fixed to the outer surface of the paper tube 6 in this manner, the label product 7, which is a continuous long piece, is wound up onto the paper tube 6.

The paper tube 6 with the label product 7 wound up is set in a labeler (not shown). The labeler unwinds the label product 7 from the paper tube 6, peels off the release paper 8, and sequentially attaches the labels 9 of the label product 7 to the adherends, such as products.

The separator-attached double-sided tape 1 of this embodiment used for such purposes is wound into a roll and set, for example, in an automatic application device. In the automatic application device, the separator-attached double-sided tape 1 is fed out, and as shown in FIG. 6 above, the separator 2 is peeled off at the peeling section 11, the double-sided tape piece 3 is attached to the outer periphery of the paper tube 6 via the first adhesive layer 4a, and the peeled separator 2 is wound up.

In this manner, in this embodiment, the separator-attached double-sided tape 1 wound in a roll is successively fed by an automatic application device, the separator 2 is peeled off, and the double-sided tape 1 is applied to the cardboard tube 6 .
<Requirements for the usage of double-sided tape with separator>
As described above, the separator-attached double-sided tape 1 (double-sided tape piece 3) is preferably wound into a roll and used by an automatic application device. The double-sided tape piece 3 is also preferably attached to a paper tube 6 and used when winding up the label product 7 around the paper tube 6.

However, when using the separator-attached double-sided tape 1 (double-sided tape piece 3), there are the following requirements:

(1) As shown in FIG. 3 above, in the separator-attached double-sided tape 1 wound into a roll, the second adhesive layer 4b of the double-sided tape piece 3 is laminated in a state of being in close contact with the second release layer 5b of the separator 2. Therefore, in order to smoothly pay out the separator-attached double-sided tape 1 by an automatic application device, it is necessary to smoothly peel the second release layer 5b of the separator 2 from the second adhesive layer 4b of the double-sided tape piece 3 to which it is in close contact in a rolled state, so that the second adhesive layer 4b does not adhere to the second release layer 5b.

(2) The first adhesive layer 4a of the double-sided tape piece 3 of the unwound separator-attached double-sided tape 1 must be smoothly peeled off from the first release layer 5a of the separator 2, and the first adhesive layer 4a of the double-sided tape piece 3 must be attached to the outer circumferential surface of the paper tube 6, as shown in FIG. 5.

(3) As described above, after the beginning end is fixed to the outer peripheral surface of the paper tube 6, the label product 7, which is a continuous long piece, is wound up on the paper tube 6. After that, the labeler unwinds the label product 7 from the paper tube 6 as described above, and while peeling off the release paper 8, sequentially attaches the labels 9 of the label product 7 to the adherends such as goods. If the double-sided tape piece 3 attached to the paper tube 6 peels off from the paper tube 6 together with the label product 7 when the label product 7 is completely unwound from the paper tube 6 as the labeler continues attaching the labels 9, the double-sided tape piece 3 with the exposed first adhesive layer 4a will move along the internal path of the labeler together with the label product 7, which may result in undesired attachment or adhesion of the adhesive.

For this reason, when the label product 7 is completely unwound from the paper tube 6, it is necessary to ensure that the double-sided tape piece 3 attached to the paper tube 6 remains on the paper tube 6.

The inventors of the present application therefore first investigated the peel strength of the separator-attached double-sided tape 1, i.e., the first adhesive layer 4a and second adhesive layer 4b of the double-sided tape piece 3 and the first release layer 5a and second release layer 5b of the separator 2.

As a result, the inventors of the present application found that the above requirements are met when the first peeling force between the first release layer 5a of the separator 2 and the first adhesive layer 4a of the double-sided tape piece 3 is set to be greater than the second peeling force between the second release layer 5b of the separator 2 and the second adhesive layer 4b of the double-sided tape piece 3 by appropriately designing the first adhesive layer 4a and second adhesive layer 4b of the separator 2 (double-sided tape piece 3) of the separator-attached double-sided tape 1 and the first release layer 5a and second release layer 5b of the separator 2. The first and second peeling forces will now be described in detail.

Table 1 below shows examples of preferred numerical ranges for the first peel force between the first release layer 5a of the separator 2 and the first adhesive layer 4a of the double-sided tape piece 3, and the second peel force between the second release layer 5b of the separator 2 and the second adhesive layer 4b of the double-sided tape piece 3, that is, numerical ranges that satisfy the above requirements.

剥離速度３００ｍｍ／ｍｉｎ、剥離角度１８０°でのセパレータ２の第１離型層５ａと両面テープ片３の第１粘着層４ａとの間の第１剥離力は、１１０～１５０ｍＮ／５０ｍｍであり、セパレータ２の第２離型層５ｂと両面テープ片３の第２粘着層４ｂとの間の第２剥離力は、３０～５０ｍＮ／５０ｍｍであるのが好ましいことが分かった。

It was found that at a peel speed of 300 mm/min and a peel angle of 180°, the first peel force between the first release layer 5a of the separator 2 and the first adhesive layer 4a of the double-sided tape piece 3 is preferably 110 to 150 mN/50 mm, and the second peel force between the second release layer 5b of the separator 2 and the second adhesive layer 4b of the double-sided tape piece 3 is preferably 30 to 50 mN/50 mm.

It was also found that the first peel force between the first release layer 5a of the separator 2 and the first adhesive layer 4a of the double-sided tape piece 3 at a high peel speed of 80 m/min and a peel angle of 180° is preferably 700 to 800 mN/50 mm, and the second peel force between the second release layer 5b of the separator 2 and the second adhesive layer 4b of the double-sided tape piece 3 at a peel speed of 80 m/min is preferably 200 to 300 mN/50 mm.

By designing the first adhesive layer 4a and second adhesive layer 4b on both sides of the double-sided tape piece 3 in this manner, in combination with the first release layer 5a and second release layer 5b of the separator 2, it becomes easier to adjust the balance between the first peel force between the first release layer 5a of the separator 2 and the first adhesive layer 4a of the double-sided tape piece 3, and the second peel force between the second release layer 5b of the separator 2 and the second adhesive layer 4b of the double-sided tape piece 3.

In this embodiment, the first peel force between the first release layer 5a of the separator 2 and the first adhesive layer 4a of the double-sided tape piece 3, and the second peel force between the second release layer 5b of the separator 2 and the second adhesive layer 4b of the double-sided tape piece 3 are set within the numerical ranges in Table 1 above, and the difference between the first peel force and the second peel force is increased, thereby satisfying the above requirements.

That is, the roll of separator-attached double-sided tape 1 can be unwound by an automatic application device without adhering the second adhesive layer 4b to the second release layer 5b, and the first adhesive layer 4a can be smoothly peeled off from the first release layer 5a, and then applied to the outer circumferential surface of the paper tube 6. This satisfies the above requirements, particularly requirements (1) and (2).

Next, the inventors of the present application investigated the properties of the strong adhesive constituting the first adhesive layer 5a, which is a strong adhesive layer, and the weak adhesive constituting the second adhesive layer 5b, which is a weak adhesive layer. The results are shown in Table 2 below.

この表２に示すように、強粘着剤のステンレス(ＳＵＳ)に対する粘着力(Ｎ／１０ｍｍ)は、６．００～９．００であり、弱粘着剤のステンレス(ＳＵＳ)に対する粘着力(Ｎ／１０ｍｍ)は、０．１０～０．８０である。

As shown in Table 2, the adhesive strength (N/10 mm) of the strong adhesive to stainless steel (SUS) is 6.00 to 9.00, and the adhesive strength (N/10 mm) of the weak adhesive to stainless steel (SUS) is 0.10 to 0.80.

The adhesive strength (N/10 mm) of the strong adhesive to polyethylene (PE) is 2.50 to 6.00, and the adhesive strength (N/10 mm) of the weak adhesive to polyethylene (PE) is 0.10 to 0.80.

The ball tack characteristic value (No.) is 12 to 16 for strong adhesives and 5 to 9 for weak adhesives.

By using a strong adhesive having such adhesive strength, it is possible to satisfy the above requirement (3), that is, when the continuous body of the label product 7 or the like wound around the paper tube 6 is completely unwound, it is possible to ensure that the double-sided tape piece 3 remains on the paper tube 6 side.
<Modification>
In addition to the above embodiment, the separator-attached double-sided tape 1 can also be configured as follows.

(1) In the above embodiment, as shown in FIG. 2, the double-sided tape piece 3 is wound into a roll facing outward, but as shown in FIG. 7, the double-sided tape piece 3 may be wound into a roll facing inward.

(2) In the above embodiment, the double-sided tape piece 3 is used to fix the beginning of a continuous piece of a label product 7 or the like to the outer circumferential surface of the paper tube 6 when winding the continuous piece around the paper tube 6, but it can be used for various other purposes without being limited to this.

For example, it can be used to attach a poster or other object to a wall or other target location.

This involves cutting the required number of pieces, for example one piece of double-sided tape 3, from a roll of separator-attached double-sided tape 1 as shown in FIG. 7. The exposed second adhesive layer 4b of the cut double-sided tape piece 3 is pressed against the wall 10, which is the target location, as shown by the arrow in FIG. 8, to attach it. Next, the separator 2 is peeled off to expose the first adhesive layer 4a of the double-sided tape piece 3. After that, the target object, such as a poster, is pressed against the exposed first adhesive layer 4a to attach it.

In this way, the double-sided tape piece 3 can be used to attach an object such as a poster to the wall 10. In this attachment, by using the strong adhesive first layer 4a on the poster side and the weak adhesive second layer 4b on the wall 10 side as described above, when the poster is peeled off from the wall 10, the adhesive layer of the double-sided tape piece 3 is unlikely to remain on the wall 10, and the wall 10 will not be contaminated.

(3) By appropriately designing the peeling force, for example, as shown in Fig. 9, the second adhesive layer 4b, which is the weak adhesive layer of the double-sided tape piece _3-1 , may be attached to the separator 2 side, and the first adhesive layer 4a, which is the strong adhesive layer, may be exposed to the outside. In this case as well, the exposed first adhesive layer 4a of the double-sided tape piece _3-1 is pressed against the wall 10, which is the attachment target location, as shown in Fig. 10, and then the separator 2 is peeled off to expose the second adhesive layer 4b of the double-sided tape piece _3-1 , and an object to be attached, such as a poster, is pressed against the second adhesive layer 4b to be attached.

(4) Other uses for this type of separator-equipped double-sided tape 1 include, for example, use in POP advertising to increase the eye-catching effect at stores for the purpose of product sales promotion.

As shown in FIG. 11, for example, the double-sided tape piece 3 of the separator-equipped double-sided tape 1 may be used to attach a POP card 13, which is an advertising material that directly advertises a product, to a product shelf 12 on which the product is displayed or to the product itself.

In this case, it is preferable to attach the double-sided tape piece 3 with the first adhesive layer 4a, which is a strong adhesive layer, on the POP card 13 side and the second adhesive layer 4b, which is a weak adhesive layer, on the product shelf 12 or product side. This allows the double-sided tape piece 3 to remain on the POP card 13 side when the POP card 13 is removed, and does not contaminate the product shelf 12 or product.

As described above, according to this embodiment, when applying and using the separator-attached double-sided tape ₁ , 11, it is only necessary to peel off the separator 2 that is affixed to one side of the double-sided tape piece ₃ , 3-1. This eliminates the need to peel off the separators from both sides as in a configuration in which separators are affixed to both sides of the double-sided tape, thereby improving user operability.

Moreover, since the double-sided tape pieces 3, _3-1 attached to the separator 2 are formed in a predetermined shape, for example, a rectangle, there is no need to cut the double-sided tape into a predetermined shape, which further improves workability. The predetermined shape is not limited to the above-mentioned rectangle, but may be, for example, a rectangle with rounded corners, an oval, or another shape.

In another embodiment of the present invention, the double-sided tape may have the same shape as the separator 2, without being formed into a double-sided tape piece of a specific shape.

Furthermore, according to the present embodiment, the separator 2 is affixed to only one side of the double-sided tape pieces ₃ , 3-1, and therefore the amount of separator discarded as waste can be reduced, compared to a configuration in which the separator is affixed to both sides of the double-sided tape and then peeled off from both sides of the double-sided tape and discarded as waste.

Furthermore, according to this embodiment, by designing the first peeling force and the second peeling force to be within the numerical ranges in Table 1 above, the double-sided tape piece 3 can be smoothly unwound from the separator-attached double-sided tape 1 wound in a roll by an automatic application device and applied to the paper tube 6. In addition, when a continuous body such as a label product 7 wound around the paper tube 6 is set in a labeler and rewound for use, when the continuous body is completely unwound from the paper tube 6, the double-sided tape piece 3 can be left on the paper tube 6 side, and the double-sided tape piece 3 with the exposed adhesive layer can be prevented from moving inside the labeler together with the continuous body.

REFERENCE SIGNS LIST 1, _{1 1} Double-sided tape with separator 2 Separator 3, 3 ₁ Double-sided tape piece 4 Substrate 4a First adhesive layer 4b Second adhesive layer 5 Support 5a First release layer 5b Second release layer 6 Paper tube 7 Label product 8 Release paper 9 Label

Claims (6)

a double-sided tape having a first and second adhesive layers formed on both sides of a base material;
A separator having first and second release layers formed on both sides thereof,
a first peel force between the first release layer of the separator and the first adhesive layer of the double-sided tape is set to be larger than a second peel force between the second release layer of the separator and the second adhesive layer of the double-sided tape;
One surface of the double-sided tape is attached to one surface of the separator.
Double-sided tape with separator. The separator is elongated,
The double-sided tape is a plurality of double-sided tape pieces formed into a predetermined shape,
Each of the plurality of double-sided tape pieces is attached to the one surface of the separator along a longitudinal direction of the separator.
The separator-attached double-sided tape according to claim 1 . the first release layer is formed on the one surface of the separator, the first adhesive layer is formed on the one surface of the double-sided tape, and the separator-attached double-sided tape is wound into a roll.
The separator-attached double-sided tape according to claim 1 . The first adhesive layer has a stronger adhesive strength than the second adhesive layer.
The separator-attached double-sided tape according to claim 3. The first peel force is 110 to 150 mN/50 mm and the second peel force is 30 to 50 mN/50 mm at a peel speed of 300 mm/min.
The separator-attached double-sided tape according to any one of claims 1 to 4. The first peel force is 700 to 800 mN/50 mm, and the second peel force is 200 to 300 mN/50 mm at a peel speed of 80 m/min.
The separator-attached double-sided tape according to any one of claims 1 to 4.

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