JPH0464070B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to an easily breakable adhesive material whose surface layer is easily destroyed by hand, and in particular, for example, a price tag or a label for preventing repositioning that is attached to the opening of a container. The present invention relates to an easily breakable adhesive material suitable for use in. (Prior art) Conventionally, labels used as price tags and the like to prevent replacement have been made by making appropriate perforations or cuts in the surface base material, and then being peeled off at a store, etc., and attempted to be replaced with another price tag. In some cases, it is known that the material is separated or damaged at perforations or cuts, making it possible to tell at a glance that it has been attempted to be removed. On the other hand, the adhesive paper attached to the opening of the container to indicate its unopened status may vary depending on the material of the opening of the package and its surface treatment method.
For example, you can pick up a product displayed on a display shelf at a store, easily peel it off on the spot, and after getting foreign objects into the packaging, you can reapply it so that it is not obvious that it was removed. Therefore, you cannot tell whether the package has been opened or not just by looking at the sticker from the outside. Therefore, there is a risk that the contents of the package may be tampered with. For example, poisonous substances may be mixed in with sweets in a package. Therefore, recently, adhesive films that can be seen to be peeled off after being applied have come on the market. FIG. 11 is a sectional view showing such an adhesive film. The adhesive film 10 includes a film 20, and a silicon layer 18 is formed on a part of the back surface of the film 20. Then, a vapor deposition layer 16 in which metal is vapor-deposited is formed on that surface. Therefore, a portion of this deposited layer 16 is not directly deposited on the film 20 due to the interposition of the silicon layer 18. Furthermore, the vapor deposition layer 16 and the release sheet 12 are temporarily attached with the pressure sensitive adhesive layer 14. This adhesive film 10 is pasted by peeling off the release sheet 12 and pressing the exposed surface of the adhesive layer 14 against an opening (not shown) of the package.
Then, an adhesive film 10 is attached to the opening.
When the film 20 is peeled off, only the portion of the deposited layer 16' that was not directly deposited on the film 20 by the silicone layer 18 remains adhered to the opening portion with the adhesive layer 14, and the remaining portion and the peeled portion are separated. Predetermined characters such as "opened" will appear. Further, when the opening is opened, the remaining vapor deposited layer 16' stuck thereon is cut or torn, thereby making it possible to determine whether the opening has been opened. (Problems to be Solved by the Invention) However, in such an adhesive film 10, since the metal is vapor-deposited on the film 20 and the silicon layer 18, the film as the material to be vapor-deposited is limited to polyester or the like. In addition to the above, it is also necessary to satisfy various other conditions, which has the disadvantage of increasing costs. Furthermore, when the film 20 is peeled off, the surface of the adhesive layer 14 that remains and is exposed on the adhered part of the adhered material becomes sticky and attracts dust in the part where the film 20 is peeled off. However, there were also problems in terms of hygiene. Furthermore, the adhesive force of the exposed adhesive layer 14 made it possible to reattach the film 20, making it impossible to achieve the intended purpose. Therefore, the main object of the present invention is to provide an adhesive material that can be easily peeled off after application and does not require a vapor deposition process. (Means for Solving the Problems) The present invention includes a release sheet, an adhesive layer laminated on one surface of the release sheet, and a second layer laminated on the surface of the adhesive layer. and the second
an easily breakable first layer laminated on one surface of the layer; and a portion between the first layer and the second layer so that the first layer and the second layer adhere to each other. is an adhesive material including a laminated release agent layer, where a is the force required to separate the first layer from the second layer at the release agent layer portion, and the release agent layer The force required to peel off the first layer from the second layer at the part where is missing is b, the adhesive force between the adhesive layer and the material to be adhered is c, and the release sheet is peeled from the adhesive layer. It is an easily breakable adhesive material that satisfies the following formula, c>b>a>d, where d is the force required to force the adhesive. (Function) The adhesive layer provides adhesive strength to the adhesive material to adhere to the surface of the material to be adhered or the sealed portion. The second layer retains its initial state when the first layer is removed. The release agent layer is divided into a part where the second layer and the first layer are peeled off and a part where the second layer and the first layer are not easily peeled off. The first layer protects the second layer from cutting or tearing and is easily destroyed by hand. (Effects of the Invention) According to the present invention, since the second layer is laminated on the first layer by coating or the like, it can be produced without performing vapor deposition as in the conventional method. Moreover, there are parts where the second layer and the first layer are temporarily attached through the release agent layer in a state where re-adhesion is impossible, and parts where the release agent layer is not present and the first layer and the second layer are temporarily attached. It is divided into a layer where the layer is bonded and a portion where the layer is bonded. for that,
When attempting to manually peel off the adhesive formed into a predetermined shape from the opening of a package, etc., the first layer peels off from the second layer in areas where the release agent layer is present, while the release agent layer is not present. It can be seen that the adhesive adhered to the material to be adhered has been peeled off because it does not peel off from the second layer at the site and the first layer is torn or torn and cannot be reapplied. Additionally, once the second layer is cut or torn, it does not return to its original state, indicating that the second layer has been separated. Therefore, it can be seen at a glance that the adhesive material applied to the material to be adhered has been peeled off, and an adhesive material that does not require the conventional vapor deposition process can be obtained. The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings. (Embodiment) FIG. 1 is a sectional view showing an embodiment of the present invention. The adhesive material 10 of this embodiment is used as a label, etc., and is temporarily attached on a release sheet 12, and includes an adhesive layer 14, a resin layer 1 as a second layer, etc.
6. The release agent layer 18 and the surface layer 20 as the first layer are sequentially laminated. And surface layer 2
A printed layer 24 is formed on the surface of the resin layer 16, and a printed layer 22 is also formed on the surface of the resin layer 16 on the adhesive layer 14 side. Furthermore, in this embodiment, the surface layer 2
0, a solid printing layer 23 such as silver printing is formed on the main surface on the release agent layer 18 side. Therefore, the printing layer 23 increases the hiding power, making it impossible to see through the printing layer 22 from the surface layer 20 side, and sealing the surface layer 20 to stabilize the coating film of the release agent layer 18. be able to. However, the printing layer 22, 2
3 and 24 may be formed alone or in combination of two or more layers, or may not be formed at all. In this specification, sheets, films, and their equivalents are collectively referred to as "sheets" or "films", with the most suitable one being listed according to each case. Furthermore, the term "sheet" does not only refer to single-fed type sheets, but also includes roll-up type (web) types.
Of course. The adhesive layer 14 is for providing adhesive force to the adhesive material 10, is made of an adhesive such as a pressure-sensitive adhesive, and is formed between the release sheet 12 and the resin layer 16. The resin layer 16 is for sealing the opening of the package, for example, and is also for opening the package by being cut or torn when the seal is opened. This resin layer 16 is made of urethane resin, EVA resin, etc.
Release agent layer 1 for resin such as PVA, salt vinyl acetate, acrylic, etc.
8 as a coating. Note that another example of the resin layer 16 is a coating made of a synthetic resin in which metal powder is mixed with a synthetic resin and is formed so that it can be cut or torn by applying a relatively weak force. Examples include a resin layer. The release agent layer 18 is formed so that the resin layer 16 and the surface layer 20 can be easily separated in a state where they cannot be reattached. , and is formed between the resin layer 16 and the surface layer 20 by applying a release agent such as wax. In this embodiment, the release agent layer 18 is not formed over the entire surface of one surface of the surface layer 20, but rather, as shown in FIG. is formed, and the resin layer 16 is adhered to the surface layer 20 in the portion where the release agent layer 18 is not formed. The surface layer 20 is formed to prevent the resin layer 16 from being cut or torn, and is designed to prevent the surface layer 20 from being peeled off first if the adhesive material 10 is to be peeled off. It was formed in Although the surface layer 20 is temporarily attached to the resin layer 16 via the release agent layer 18,
When the surface layer 20 is peeled off, the release agent layer 18
A material is used that does not have a layer formed thereon and can be torn while leaving the portion laminated directly on the resin layer 16 on the resin layer 16 side. For example, paper, synthetic resin films such as brittle films made by mixing extender pigments (e.g., titanium white, calcium carbonate) with vinyl chloride and acrylic copolymer resin, or aluminum foil, etc., can be easily made by hand. Examples include sheets that are easily broken and can be easily torn. Among them, when this adhesive material 10 is bent and attached to the sealing part, the resin layer 1
It is preferable to use a relatively flexible material that does not peel off when the surface layer 20 attempts to restore its original state against the adhesive force of No. 8. The release sheet 12 is for protecting the adhesive layer 14, and includes a release paper made of paper, a synthetic resin sheet, etc., and a release agent such as silicone is coated and printed on the surface of the base material such as paper. A release agent layer 12a is formed. In this adhesive material 10, the force required to peel off the surface layer 20c from the resin layer 16 at the release agent layer 18 portion is a, and the surface layer 20c is removed at the portion other than the portion where the release agent layer 18 is laminated. The force required to peel off the adhesive layer 20b from the resin layer 16 is b, the adhesive force with the adhered material when the adhesive layer 14 is adhered to the adhered material is c, and the release sheet 12 is the adhesive layer. 14
Letting d be the force required to further peel off,
The force required to peel each part is expressed by the formula c>b>a>
d. First, the adhesive material 10 is peeled off from the release sheet 12, and the adhesive layer 14 is used to paste it as a price tag or to the opening of a package of sweets, as shown in FIG. 8, for example. In order to open the opening of the package to which the adhesive 10 consisting of the surface layer 20 and the resin layer 16 is attached, the attached adhesive 10 must be peeled off and the sealed portion must be opened. It won't happen. In this case, the part 20c where the surface layer 20 is weakly temporarily attached to the resin layer 16 via the release agent layer 18 is compared with the former part (releasing agent layer 18 part) because the release agent layer 18 is not formed. On the other hand, since the resin layer 16 is strongly adhered to the opening part of the package with the adhesive layer 14, as shown in FIG.
If you try to peel off the surface layer 20, you can peel off only the part of the surface layer 20c where the release agent layer 18 is present, and the other surface layer 20b is sealed by the adhesive layer 14 together with the resin layer 16. It remains attached to the part. Therefore, once the surface layer 20 is peeled off, the surface layer 20c is torn off, and the characters such as "Opened" can be seen through the print layer 22 through the resin layer 16, and the surface layer 20c is peeled off again. Since it cannot be reattached to the surface of the resin layer 16 and does not return to its original state, it can be clearly seen that it has been opened. In order to completely open the opening of the package, the remaining resin layer 16 must be cut, torn, or peeled from the opening. In addition, in order to open the sealed part, the surface layer 20
Even if the resin layer 16 is cut or torn at the same time as the package is peeled off, the opened state can be determined by looking at the state of the resin layer 16 in the same manner as described above. In this example, the adhesive material 10 was used for packaging of sweets, but it can also be used for packaging of medicines, envelopes, bags, and other parts to be sealed, and as price tags displaying prices. Of course. FIGS. 2 and 3 are illustrative views showing an example of an apparatus for manufacturing a laminate used in an embodiment of the present invention. This laminate 30 has a release agent layer 18 and a resin layer 16 laminated in that order on the surface layer 20. The apparatus 100 includes a holding roller 102 for holding the surface material 20a forming the strip-shaped surface layer 20 in a roll shape. One end of the surface material 20a held by the holding roller 102 is unwound and guided to the release agent coating device 104. The release agent application device 104 is for printing and applying a release agent 18a such as silicone resin or fluororesin to the front or back surface of the surface material 20a, and includes two rollers 104a and 104b.
including. The lower part of the roller 104a is the pan 10.
It is immersed in the release agent 18a stored in the tank 4c. Therefore, by rotating the rollers 104a and 104b, the release agent 18a is printed and coated on the surface of the facing material 20a guided between them. As the release agent coating device 104, a gravure roll coater, a reverse roll coater, or the like may be used, or a known printing machine such as an offset printing machine or a screen printing machine may be used. The application of the release agent 18a is shown in FIG.
As shown in FIG. 2, the release agent 18a is formed in a band-like manner, leaving a portion to which the release agent 18a is not applied, and portions coated with the release agent 18a and portions not coated are formed alternately. Then, the surface material 20a to which the release agent 18a is printed and coated is heated by a dryer 10 including a heater, for example.
6. In the dryer 106, the surface material 2
The release agent 18a printed and coated on Oa is dried to form a release agent layer 18. The surface material 20a on which the release agent layer 18 has been formed in this manner is guided to the winding device 108. In addition, when forming the solid printing layer 23 on the main surface of the surface layer 20 on the release agent layer 18 side, it is necessary to print before forming the release agent layer 18. The surface material 20a rolled up into a roll is transferred to another resin 16a laminating device 110 shown in FIG.
is loaded into. Laminating device 110 includes two rollers 112 and 114. The lower part of the roller 112 is immersed in a resin 16a such as urethane resin or EVA resin stored in a pan 116. Therefore, by rotating the rollers 112 and 114, the resin 16a is printed and coated on the surface of the release agent layer 18 of the surface material 20a guided between them.
The surface material 20a coated with the resin 16a is further led to a dryer 120, where it is dried and solidified. As a result, the surface of the release agent layer 18 on the surface of the surface layer 20 is coated with the resin 16a, thereby forming the surface base material 30 on which the resin layer 16 is formed. And this surface base material 30
is sent to the next printing device 130. The printing device 130 is comprised of a known printing machine such as an offset printing machine, and is provided on the transport path of the surface substrate 30. The printing device 130 forms a printed layer 22 on the surface of the resin layer 16 with, for example, characters such as "opened" printed thereon. Also,
For example, a predetermined line such as "opened" is printed on the surface of the material to be adhered, such as a package, and when the surface layer 20 is peeled off, the resin layer 16 is
If the image formed on the adherend material can be seen through, it is not necessary to form the printing layer 22. The surface base material 30 on which the printed layer 22 is formed in this manner is wound up into a roll shape by a winding roller 140 and held. FIG. 4 is an illustrative view showing an example of an apparatus for further laminating the adhesive layer 14 and the release sheet 12 using the surface base material 30 shown in FIG. Apparatus 150 includes a coating device 152 . The coating device 152 is for coating the surface of the release sheet 12 with the adhesive 14a, and includes a main roller 154 and a roller 156 provided opposite to the main roller 154. The lower part of the main roller 154 is immersed in the adhesive 14a stored in the pan 158, and the main roller Adhesive 14a is applied at 154. Then, the release sheet 12 on which the adhesive 14a is printed and applied is transferred to a dryer 122 including a heater, for example.
guided by. In the dryer 122, the release sheet 12
An adhesive layer 14 is formed by drying the adhesive 14a that is printed and applied. The release sheet 12 on which the adhesive layer 14 is formed in this way is attached to the surface base material 3.
0 to a stacking device 160. The surface base material laminating device 160 is for laminating the surface base material 30 on the adhesive layer 14 of the laminate of the release sheet 16 and the adhesive layer 14, and holds the surface base material 30 in a roll shape. Holding roller 1 for
62 included. Surface base material 30 held in a roll shape
is unwound at one end and guided between rollers 164 and 166. At this time, adhesive 1 is applied between these rollers 164 and 166.
A laminate 32 coated with 4a is being guided, so that between these rollers 166 and 164 the surface substrate 30 and the release sheet 12 are superimposed with the adhesive layer 14 in between. In this way, the surface base material 30 on which the laminate 32 of the release sheet 12 and the adhesive layer 14 is superimposed is guided to the take-up roller 168. Next, the adhesive material 10 in which the release sheet 12 is laminated with the adhesive layer 14 is introduced into an apparatus for manufacturing labels. FIG. 5 is an illustrative diagram showing an example of an apparatus for manufacturing labels. Such apparatus 170 includes a holding device 172 into which a roll of surface substrate 30 is loaded with release sheet 12 laminated with adhesive layer 14 . Surface base material 30 and laminate 3 pulled out from holding device 172
The laminate consisting of 2 and 2 is led to a printing device 132. Further, like the printing device 130, the printing device 132 is composed of a known printing machine such as an offset printing machine. The printing device 132 prints, for example, a "product name" on the surface of the surface layer 20.
A printed layer 24 is formed on which lines such as the following are printed. The laminate on which the printed layer 24 has been formed in this manner is guided to a die cutting machine 174. The die cutting machine 174 is
It includes a so-called die cutter having a cutting edge, and the die cutter allows the surface layer 20, the release agent layer 18,
Cuts of appropriate shapes are made in the resin layer 16 and the adhesive layer 14. Note that the die cutter 174 may use a roll with a cutting edge, so-called a die roll. The surface base material 30 including the cut surface layer 20 and the like is divided into an unnecessary part and a label 10 (necessary part) by rollers 176a and 176b, and the unnecessary part is rolled into a roll by a scraping roller 180. The label 10 (required portion) is rolled up and placed on the take-up roller 17 while temporarily attached to the release sheet 12.
8 into a roll. Note that the die cutting machine 174 and the winding roller 17
8 may be replaced by a score forming machine. The score forming machine includes a cutting blade. This cutting blade is for making cuts in the surface layer 20, release agent layer 18, resin layer 16, and adhesive layer 14 to separate each label 10. Here, a more specific example will be described as follows. (1) Use high-quality paper with a thickness of approximately 70μ as the first layer, use silicone resin manufactured by Toray Industries, Inc. as the release agent to form the release agent layer, and do not coat the surface of the high-quality paper in a polka dot pattern with the hardening agent. After coating the entire surface except for some parts, it is baked with a dryer to form a release agent layer. Next, the EVA resin shown in Table 1 below, which forms a second layer, is coated on the release agent layer to a thickness of approximately 5 to 50 microns. At this time, the force (a) required to peel off the EVA resin from the release agent layer was 100g.
The force (b) required to peel off the EVA resin from the high-quality paper in the area where the release agent layer was not formed was 500 g. Based on the multi-layered product of the first layer and second layer created in this way, an acrylic adhesive (BPS-5127) manufactured by Toyo Ink was applied to release paper manufactured by Shikoku Paper Co., Ltd. to a dry film thickness of 5 to 50μ. A release sheet is manufactured by coating it as follows. After that, it was laminated with the multilayer product. At this time, the force required to peel off the release paper from the adhesive (d)
was 10g. The thus constructed pressure-sensitive adhesive paper was made into a label and pasted on a material to be pasted (paper box, plastic, glass bottle, etc.). At this time, the adhesive force (c) to the adhered material was 1000 g. When I tried to forcefully peel off the pasted label from the material to which it was applied, the first layer of paper was peeled off at the release agent layer, and the area where the release agent layer was not formed was removed from the resin layer. It was left on the surface and torn.

【table】

[Table] Similar results were also obtained when a urethane resin manufactured by Takeda Pharmaceutical Co., Ltd. was coated as the second layer and the other conditions were the same as in the above example. (2) A coated paper with a thickness of about 70 μm was used as the first layer, and wax was coated and dried as a release agent to form a stripe-like part where the release agent layer was missing. Next, a urethane resin or
Coat with EVA resin or the like to a thickness of approximately 5 to 50μ. At this time, urethane resin or
The force (a) required to peel off the EVA resin from the wax surface was 100g, and the force (b) required to peel off the coated paper from the urethane resin in the area where the release agent layer was not formed was 500g. Ta. The multi-layered product of the coated paper and the second layer thus prepared was laminated with a release sheet made of release paper coated with an adhesive to a dry film thickness of 5 to 50 μm. At this time, the force (d) required to peel off the release paper from the adhesive was 10 g. The pressure-sensitive adhesive paper thus constructed is made into a label and applied to the material to be affixed (paper boxes, plastics, glass bottles, etc.)
pasted on. Adhesive strength to the adhered material at this time
(c) weighed 1000g. When I tried to forcefully remove the pasted label from the material to which it was applied, the coated paper of the first layer was peeled off at the part of the release agent layer, and it was torn at the part where the release agent layer was not formed. It was. FIG. 6 is a sectional view showing another embodiment of the invention. In particular, the adhesive material 10 of this embodiment is different from the embodiment shown in FIG. With the adhesive force of the adhesive layer 16a formed on the surface of the release agent layer 18
In addition, the portions where the release agent layer 18 is not formed are overlapped and bonded to the surface layer 20. The resin layer 16 is formed of a film made of a resin such as polyethylene, polypropylene, polystyrene, urethane, etc., and the adhesive layer 16a is made of an adhesive 16a' having a weaker adhesive force than the adhesive layer 14 laminated on the release sheet 12. It was formed by FIG. 7 shows a surface base material 30 made of the surface layer 20, release agent layer 18, and resin layer 16 shown in FIG. It is an illustrative view showing an example of the apparatus for manufacturing. In this apparatus, unlike the apparatus shown in FIG. 3, the film 16 is laminated and laminated on the surface of the release agent layer 18 on the surface of the surface layer 20, instead of the lamination apparatus 110 that coats the resin 16a. A device 110' is provided. The laminating device 110' includes a device for loading a roll of film 16, and the film 16 pulled out from the roll is coated with adhesive, including two rollers and a pan for storing adhesive 16a'. After the adhesive 16a' is applied to the surface of the film 16 by the rotation of two rollers, the adhesive 16a' is applied to the surface layer 20, which is guided between the two rollers 112' and 114', and which is separately introduced. Release agent layer 1
A film 16 is overlaid and adhered to the surface of 8 by the adhesive layer 16a on the surface thereof. Then, it is guided to the bonding device 119. As an adhesive device,
When using an adhesive containing a water-soluble resin such as PVA, vinyl acetate, or acrylic, or a solvent-based adhesive such as salt vinyl acetate, urethane, or acrylic as the adhesive 16a, use a "dryer". rubber,
When using EVA-based hot melt adhesive,
Use a "cooler". In addition, when manufacturing a label using the adhesive material according to the present invention, the formed release agent layer 18, surface layer 20, and resin layer (film layer) 16
An example of the relationship between the adhesive layer 14 and a label (rectangular or oval shape shown by a dashed line) formed by die-cutting the adhesive layer 14 is as shown in FIG. In FIG. 10, dotted portions lacking the release agent layer 18 are regularly formed at predetermined intervals on the lines of the vertical grooves. In FIG. 10, parts where the release agent layer 18 is removed are formed at each intersection of the honeycomb-like linear shape, and no matter which position the label is cut out when manufacturing the label, Well formed.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention. FIGS. 2 and 3 are illustrative views showing an example of an apparatus for manufacturing a laminate used in an embodiment of the present invention. FIG. 4 is an illustrative view showing an example of an apparatus for further laminating the adhesive layer 14 and the release sheet 12 using the surface base material 30 shown in FIG. FIG. 5 is an illustrative diagram showing an example of an apparatus for manufacturing labels. FIG. 6 is a sectional view showing another embodiment of the invention. FIG. 7 shows a surface base material 30 made of the surface layer 20, release agent layer 18, and resin layer 16 shown in FIG. It is an illustrative view showing an example of the apparatus for manufacturing. FIG. 8 is a perspective view showing a method of using the adhesive according to the present invention. Figure 9 shows the first example of the Figure 1 embodiment.
FIG. 3 is a cross-sectional view showing a state in which the layer is destroyed. 10th
The figure is a plan view showing the state of formation of the release agent layer.
FIG. 11 is a sectional view showing a conventional example. In the figure, 10 is an adhesive material, 12 is a release sheet, 14 is an adhesive layer, 16 is a resin layer, 18 is a release agent layer, 18a is a release agent, 20 is a surface layer, 20a is a surface material, and 30 is a surface base. material, 32 is a laminate, 102
104 is a holding roller; 104 is a release agent coating device; 104
a, 104b is a roller, 104c is a pan, 108
110 is a winding device, 110 is a laminating device, 120 is a dryer, 122 is a drying device, 130, 132 is a printing device, 140 is a winding roller, 150 is a device, 152 is a coating device, 154 is a main roller,
156 is a roller, 158 is a pan, 160 is a surface base material laminating device, 162 is a holding roller, 164, 16
6 indicates a roller, and 168 indicates a take-up roller.

Claims (1)

[Scope of Claims] 1: a release sheet; an adhesive layer laminated on one surface of the release sheet; a second layer laminated on the surface of the adhesive layer; and the second layer. an easily destructible first layer laminated on one surface of the substrate, and a portion is cut out between the first layer and the second layer so that the first layer and the second layer adhere to each other. An adhesive material including a laminated release agent layer, where a is the force required to separate the first layer from the second layer at the release agent layer portion, and the release agent layer is missing. The force required to peel the first layer from the second layer at the removed area is b, the adhesive force between the adhesive layer and the material to be adhered is c, and the release sheet is peeled from the adhesive layer. An easily breakable adhesive material that satisfies the following formula: c>b>a>d, where d is the force required for this. 2. The easily destructible adhesive material according to claim 1, wherein the second layer includes a resin layer coated with a synthetic resin. 3. The easily destructible adhesive material according to claim 2, wherein the resin layer includes a resin layer coated with urethane resin. 4. The easily destructible adhesive material according to claim 2, wherein the resin layer includes a resin layer coated with EVA resin. 5. The easily destructible adhesive material according to claim 1, wherein the second layer includes a synthetic resin layer formed by overlapping synthetic resin films. 6. The easily destructible adhesive material according to any one of claims 1 to 5, wherein the first layer includes an easily destructible synthetic resin sheet. 7. The easily destructible adhesive material according to any one of claims 1 to 5, wherein the first layer includes paper. 8. The easily destructible adhesive material according to any one of claims 1 to 7, wherein the first layer includes a printed layer formed on the surface thereof. 9. The easily destructible adhesive material according to claim 8, wherein the first layer includes a solid printing layer formed on the second layer side surface. 10. The easily destructible adhesive material according to any one of claims 1 to 9, wherein the second layer includes a printed layer formed on at least one surface. 11. The easily destructible adhesive material according to any one of claims 1 to 10, wherein the release agent layer includes a layer coated with silicone resin. 12. The easily destructible adhesive material according to any one of claims 1 to 10, wherein the release agent layer includes a layer coated with fluororesin. 13. The release agent layer includes a layer coated with wax.
The easily destructible adhesive material according to any of item 0. 14. The easily destructible adhesive material according to any one of claims 1 to 13, wherein the portion where the release agent layer is removed is formed in a linear shape. 15. The easily destructible adhesive material according to any one of claims 1 to 13, wherein the region where the release agent layer is removed is formed in a dot shape. 16. The easily destructible adhesive material according to any one of claims 1 to 13, wherein the portion where the release agent layer is removed is formed in a geometric pattern. 17. The easily destructible adhesive material according to any one of claims 1 to 16, wherein the adhesive layer includes an adhesive layer coated with a pressure-sensitive adhesive.