JPH0355978Y2 - - Google Patents

Description

[Detailed explanation of the idea]

(Industrial field of application) This invention is suitable for preventing replacement by sticking to the opening of a container, for example, because when the surface layer is peeled off by hand, the easily broken layer underneath is destroyed. ,
Regarding sealing materials. (Prior art) Conventional sealing materials that are pasted to the opening of a container to indicate the unopened state may be used, for example, on store shelves, depending on the material of the opening of the package and its surface treatment method. You can pick up the lined products and easily peel them off on the spot, and you can reapply the package after foreign matter has gotten into the package so that it will not be obvious that it has been removed, so you can easily seal the package from the outside. You can't tell if the package has already been opened just by looking at the material. 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 labels that can be seen to be peeled off after being pasted have become available on the market, and are disclosed in Utility Model Application Publication No. 1077/1983. This adhesive label is attached by peeling off the release sheet and pressing the exposed adhesive layer against the opening (not shown) of the package. When the adhesive label affixed to the opening is peeled off, only the part of the deposited film that was not directly deposited on the film substrate by the release agent coating is adhered to the opening by the adhesive coating. remain as is. Furthermore, when the opening is opened, the remaining vapor deposited film stuck thereon is cut or torn, thereby making it possible to determine whether the opening has been opened. (Problem that the invention aims to solve) However, with such adhesive labels, when the film is peeled off, part of the vapor deposited film is difficult to remain on the adhesive coated surface, and it is difficult for some of the vaporized film to remain on the adhesive layer when the film is peeled off. It is not easy to form characters or the like with the remaining vapor deposited film after it has been peeled off. Furthermore, when the film base material is peeled off, a portion of the adhesive coating remains on the adhered part of the adhered material, and the surface of the exposed adhesive coating becomes sticky and collects dust. It also had problems in terms of hygiene. Therefore, the main purpose of this invention is to provide a sealing material that can be recognized as having been peeled off after being pasted, and that no adhesive appears on the peeled surface and does not become sticky. (Means for Solving the Problem) This invention provides a surface material, an easily broken layer laminated on one main surface of the surface material, and a first method that facilitates peeling between the surface material and the easily broken layer. a second release layer formed on a part of the main surface of the easily broken layer; a coating layer formed on the second release layer side main surface of the easily broken layer; an adhesive layer formed on the main surface of the coating layer, where a is the adhesive force between the first release layer and the easily broken layer, and b is the adhesive force between the second release layer and the coating layer, It is a sealing material that satisfies the following formula: a>b. (Function) The adhesive strength between the first release layer and the easily broken layer is
The adhesion force between the second release layer and the covering layer is greater than that of the second release layer, and the second release layer is formed with a portion removed from the main surface of the easily broken layer, so that the sealed layer is The adhesive strength of each part of the sealant stuck to the material is different between the part where the second peeling layer is formed and the part where it is not, and when the surface material on the surface is peeled off, The easily destructible layer is torn at the boundary between the part where the release layer is formed and the part where it is missing, and the easily destructible layer and the coating layer in the part where the second release layer is removed remain on the surface of the adhered material, etc. The part peels off from the coating layer. (Effect of the invention) According to this invention, the adhesive force between the first release layer and the easily broken layer is greater than the adhesive force between the second release layer and the coating layer, and the second release layer is formed on the main surface of the easily destructible layer with a part removed, so the adhesive force between the covering layer and the easily destructible layer is different between the part where the second peeling layer is formed and the part where the second peeling layer is removed. , the adhesive strength is different, and when the surface material is peeled off,
Only the portion of the easily broken layer where the second peeling layer is formed is peeled off from the covering layer. Therefore, it can be seen that the easily broken layer has been separated because it is torn and separated from the other parts and cannot be reattached to the original state. Therefore, it can be seen at a glance that the adhesive sealing material has been peeled off, and it can also be easily determined whether a poisonous substance or the like has been mixed into the package. In addition, since a coating layer is formed over the entire surface of the adhesive layer, the surface of the adhesive layer will not be exposed and sticky after the surface material is peeled off, unlike conventional methods. Furthermore, it becomes impossible to reattach the surface material due to the adhesive force of the exposed adhesive layer. The above-mentioned objects, other objects, features and advantages of the present invention will become clearer from the following detailed description of embodiments with reference to the drawings. (Example) FIG. 1 is a sectional view of a sealing material that is an example of this invention. The sealing material 10 of this example is
It is used as a seal or the like, and as shown in FIG. 10, the sealing material 10B is wound on top of the sealing material 10A, so that it is wound into a roll. This sealing material 10 includes an adhesive layer 14, a coating layer 1
6. The second release layer 18, the easily broken layer 20, the first release layer 22, and the surface material 24 are laminated in this order. A third peeling layer 12 is formed on the surface of the surface material 24, which is bonded to the adhesive layer 14 of the sealing material 10B that is rolled up. Furthermore, a printing layer 26 is formed on the surface of the surface material 24. The following structures are formed in the same manner one after another. The surface material 24 is formed to prevent the easily destructible layer 20 from being cut or torn, and is temporarily attached to the easily destructible layer 20 via the first peeling layer 22. The surface material 24 may include, for example, polyethylene terephthalate film, polyester or nylon film, which are relatively stiff and hard to shrink due to heat, or paper or synthetic paper, which will be described later. Thus, in order to be able to clearly see the traces of peeling from the surface side of the surface material 24 when the sealant 10 is peeled off, it is better to select a transparent or semi-transparent material. In this way, it is easy to see that a part of the easily broken layer 20 remains on the adhered material A, and that a part has been peeled off from the adhered material A and is stuck to the surface material 24. It becomes convenient. The first peeling layer 22 includes a surface material 24 and an easily broken layer 2.
Temporarily adhere the surface material 2 and 2 so that it cannot be reattached.
4 and the easy-to-break layer 20. For example, it is made of a release agent layer coated with a release agent such as silicone resin, fluororesin, paraffin, wax, etc. layer 20. The easily destructible layer 20 is a vapor deposited layer formed by vacuum vapor depositing an evaporative substance such as aluminum, silver, zinc, etc.
It is a highly breakable layer that can be easily torn by hand. This easily destructible layer 20 may be formed by, for example, a solid silver printing layer instead of the vapor deposited film formed by the vacuum evaporation method described above, or may be formed by using other UV type ink. It can also be formed by coating with a printed film or other resin. However, when this sealing material 10 is bent and attached to a bent part, the surface material 24 is relatively flexible so that it does not peel off when it tries to restore to its original state against the adhesive force of this easily breakable layer 20. The richer the better. Other examples of the easily breakable layer 20 include a synthetic resin such as a copolymer resin of vinyl chloride and acrylic in which metal powder is mixed into the synthetic resin so that it can be cut or torn by applying a relatively weak force. Examples include a resin layer formed by coating with resin. The second release layer 18 is formed by coating a part of the surface of the easily destructible layer 20 with a release agent such as silicone resin, fluororesin, wax, or the like by printing a pattern. For example, when the surface material 24 is peeled off and the easily broken layer 20 is destroyed by pattern-printing and coating lines such as letters or pictures such as "opened", as will be described later, If the above-mentioned characters such as "opened" are made to appear, the sealing material 10 can be formed to be more suitable for the intended use. The covering layer 16 is a layer that covers the adhesive layer 14 in order to prevent the adhesive layer 14 from being exposed to the surface and becoming sticky when the surface material 24 is peeled off as described later. This coating layer 16 is made of a resin such as urethane resin, EVA resin, PVA, vinyl acetate, acrylic, nitrocellulose, polyamide, acrylic, etc., and the second release layer 1 of the easily broken layer 20.
8 is formed by coating the surface. The adhesive layer 14 is for giving adhesive force to the sealant 10 to adhere to the adhered material A, and is made of, for example, an adhesive layer coated with a pressure-sensitive adhesive. formed on the surface. This sealing material 10 has an adhesive force of a between the first release layer 22 and the easily broken layer 20, and a second release layer 18.
The adhesion force between the adhesion layer 14 and the coating layer 16 is b, the adhesion force between the adhesion layer 14 and the adhesion layer 14 is d, and the adhesion between the adjacent sealants 10A and 10 is
Of B, the force required to peel off the adhesive layer 14 of the sealant 10B from the third peeling layer 12 of the sealant 10A bonded thereto is c, and the easily breakable layer 2
When the force required to destroy 0 is e, the structure is configured to satisfy the following formula c<b<e<a<d. To use this sealing piece 10, first pull out the roll-shaped sealing material 10B, peel it off from the adjacent sealing material 10A, and pull it out to a predetermined length. It is cut off and attached to the opening of a candy package or can using the adhesive layer 14, for example, as shown in FIGS. 9a, b, and c. In this way, in order to open the opening of the package to which the sealant 10 is attached, the attached sealant 10 must be peeled off and the sealed portion must be opened. In this case, the easily broken layer 20 is the first release layer 22
The easily broken layer 20 is temporarily attached to the surface material 24 through the
is strongly adhered to the covering layer 16, and the second release layer 1
In the region where 8 is formed, the covering layer 16
The bond is weaker than the part that is directly bonded. Therefore, as shown in FIG. 2, when trying to peel off the surface material 24, the easily broken layer 20 in the second release layer 18 portion and the easily broken layer in the portion directly adhered to the covering layer 16 are removed. At the boundary with 20,
The easily destructible layer 20 is torn, and at the same time, the coating layer 16 is peeled off from the main surface of the second peeling layer 18, and a part of the easily destructible layer 20 (the part where the second peeling layer 18 is formed) is separated. While remaining adhered to the surface material 24,
It will be peeled off from the adhered material A. Then, in the easily broken layer 20, the portion where the second release layer 18 is not formed remains stuck to the adhered material A as it is. Therefore, once the surface material 24 is peeled off, the easily broken layer 20 becomes the second layer.
The surface material 24 is broken at the boundary between the part where the release layer 18 is formed and the part where it is not formed, and the surface material 24 cannot be reattached to the surface of the covering layer 16, and the original state is restored. Since it cannot be restored, it is obvious that the package has been opened. In this specification, sheets, films, and their equivalents are collectively referred to as "sheets" or "films," indicating the most suitable one in each case. Furthermore, when the term "sheet" is used, it does not only refer to single-wafer type sheets, but also includes roll-up type (web) types. Hereinafter, in order to further clarify the embodiments of this invention, further explanation will be given based on an example of a method for manufacturing a sealing material according to this invention. FIGS. 3 to 5 are illustrative views showing an example of an apparatus for manufacturing a laminate 30 used in an embodiment of this invention. This laminate 30 has a first release layer 22 , an easily broken layer 20 , a second release layer 1 on the main surface of the surface material 24 .
8 and the covering layer 16 are laminated in that order, and the third peeling layer 12 is laminated on the main surface opposite to the surface material 24. The apparatus 100 includes a holding roller 102 for holding the surface material 24a forming the strip-shaped surface material 24 in a roll shape. One end of the surface material 24a held by the holding roller 102 is unraveled,
It is guided to a release agent application device 104. The release agent application device 104 is for printing and applying a release agent 22a such as silicone resin, fluorine resin, paraffin, wax, etc. on one surface of the surface material 24a, and includes two rollers 106a and 106b. , and a storage tank 108, and the release agent 22a is applied while rotating the rollers 106a and 106b. Note that the release agent coating device 104
As a coating device, a coating device such as a gravure roll coater or a reverse roll coater may be used, or a known printing machine such as an offset printing machine or a screen printing machine may be used. This release agent 22a is then led to a dryer 109 that includes a heater and is dried. In the dryer 110, the release agent 22a printed and coated on the surface material 24a is dried to form the first release layer 22. The surface material 24a on which the first peeling layer 22 is formed in this manner is guided to the winding device 112. Next, in order to laminate the third release layer 12 again, the device is loaded into a device similar to the above-described release agent application device 104, and is applied in the same manner as described above. The third release layer 12 is formed by printing and applying a release agent. As the release agent for forming the third release layer 12, a release agent containing silicone resin, fluororesin, or the like as a main component is selected. The surface material 24a on which the first peeling layer 22 and the third peeling layer 12 have been formed in this manner is then sent to the laminating device 120 where the easily broken layer 20 is formed. The laminating apparatus 120 may be, for example, a semi-continuous vacuum evaporation apparatus having a structure in which both a batch type and a continuous winding type are used. The structure of this device can be broadly classified from a functional perspective: an internal device including a vacuum tank 122, a winding shaft 126 in an upper chamber 124, a delivery shaft 128, and a cooling drum 130;
Evaporation source 134 and heating device in 2, vacuum exhaust system 1
36, and those equipped with various other instruments. With this semi-continuous vacuum evaporation device, the delivery shaft 1
The surface material 24a fed out from the cooling drum 130 passes through the slit and enters the lower chamber 132.
Aluminum, silver,
The easily broken layer 20 is formed by vacuum evaporating zinc, other metals, or metal compounds as evaporation substances.
After the vapor deposition, the material returns to the upper chamber 124 and the surface material 24a is wound up on the winding shaft 126. Other examples of the laminating apparatus include, for example, a printing apparatus such as an offset printing machine and a coating apparatus as shown in FIG. The laminating device 220 shown in FIG. 8 is for printing and applying the easily breakable material 20a forming the easily breakable layer 20 on the surface of the first peeling layer 22 formed on the surface of the surface material 24. , main roller 222a
and a roller 222b provided opposite to the main roller 222a. The lower part of the main roller 222a is immersed in the easily broken material 20a stored in the storage tank 224.
2b and the roller 222b, the roller 22
In step 2b, the easily broken material 20a is printed and applied. As this easily destructible material 20a, as described above,
Examples include inks such as UV type ink and resins such as synthetic resins containing metal powder. Then, the surface material 24a on which the easily destructible material 20a is printed and applied is transferred to a dryer 24 including a heater, for example.
6. In the dryer 226, the surface material 24
The easily destructible material 20a printed and coated on the layer a is dried to form the easily destructible layer 20, and then wound around the take-up roller 228. The rolled body of the surface material 24 on which the easily breakable layer 20 is formed is sent to a laminating device 140 shown in FIG. 5. The laminating apparatus 140 shown in FIG.
It includes a device 142 for loading 4 rolls. The surface material 24 pulled out from the roll body loading device 142 that loads this roll body is transferred to the next release agent coating device 144.
guided by. The release agent coating device 144 coats one surface of the easily broken layer 20 with silicone resin, for example.
It is for printing and applying a release agent 18a such as fluorine resin, paraffin, wax, etc., and includes two rollers 146a and 146b and a storage tank 148, and the release agent 18a is applied while rotating the rollers 146a and 146b. This release agent 18a
is then led to a dryer 149 that includes a heater and is dried. Note that the release agent coating device 1
As 44, a coating device such as a gravure roll coater or a reverse roll coater may be used, or a known printing machine such as an offset printing machine or a screen printing machine may be used. Release agent 18a forming this second release layer 18
is partially printed and applied on the surface of the easily broken layer 20, and is formed by pattern printing lines such as "opened", for example. The surface material 24 coated with the release agent 18a is sent to a lamination device 150 that laminates the coating material 16a that forms the next coating layer 16. This coating material laminating device 150 includes a roller 152 that applies a coating material 16a such as EVA resin. In this laminating device 150, the coating material 16a is coated on the surface of the easily breakable layer 20 coated with the release agent 18a forming the second release layer 18 while being pressed by the roller 154, and is melted. Cooler 1 installed next in the state
56. The cooler 156 is for cooling the covering material 16a. In the cooler 156, the coating material 16a is cooled and solidified to form the coating layer 16,
A laminate 30 is formed on the main surface of the surface material 24 by sequentially laminating the first release layer 22, the easily broken layer 20, the second release layer 18, and the covering layer 16. This laminate 30 is wound up on a winding roller 158. The laminate 30 thus formed is then loaded into a laminator 160 shown in FIG. 6. FIG. 6 is an illustrative view showing a laminating apparatus 160 that laminates the adhesive layer 14 on the laminate 30. This stacking device 160 includes a roll loading device 162 for loading rolls of the laminate 30. The laminate 30 pulled out from the roll loading device 162 of the laminate 30 is led to an adhesive coating device 166, which is a coating device for the adhesive 14, with the surface of the coating layer 16 being the bottom surface in FIG. In this adhesive application device 166, an adhesive such as a pressure-sensitive adhesive is printed and applied. This adhesive application device 166 is for applying the adhesive 14a to the surface of the coating layer 16 of the laminate 30, and includes a main roller 168a and a roller 168b provided opposite to the main roller 168a. include. And the main roller 168a
The lower part of the adhesive 1 is stored in the storage tank 170.
The adhesive 14a is printed and applied by the main roller 168a onto the surface of the coating layer 16 of the laminate 30, which is immersed in the adhesive 4a and sandwiched between the main roller 168a and the roller 168b. Then, the laminate 30 printed with the adhesive 14a is led to a dryer 172 including, for example, a heater. In the dryer 172, the adhesive 14a printed and applied to the laminate 30 is dried to form the adhesive layer 14, and then the adhesive layer 14 and the laminate 30 are dried.
The laminate is taken up on a take-up roller 174. In order to form sealing pieces using the adhesive material manufactured in this way, it is sufficient to load it into an apparatus for manufacturing sealing pieces, including a printing device for this laminate. FIG. 7 is an illustrative view showing an example of an apparatus for manufacturing sealing pieces. The sealing piece manufacturing apparatus 180 includes a holding device 182 that loads a roll of a laminate 30 in which a release sheet 12 is laminated on the surface of an adhesive layer 14.
The laminate consisting of the release sheet 12 and the laminate 30 pulled out from the holding device 182 is guided to the printing device 184. This printing device 184 is comprised of a known printing machine such as an offset printing machine. Then, the printing device 184 forms a printing layer 26 on the surface of the surface material 24, on which lines such as "product name" are printed, for example. The laminate on which the printed layer 26 has been formed in this manner is guided to a die cutter 186. The die cutter 186 includes a so-called die cutter having a cutting blade, and uses the die cutter to cut the surface material 24, the first peeling layer 22,
Cuts of appropriate shapes are made in the easily breakable layer 20, the covering layer 16, and the adhesive layer 14. Note that the printing layer 26
may be formed in advance on the surface of the surface material 24 before forming the third release layer 12. Note that the die cutting machine 186 is a roll with a cutting blade,
A so-called die roll may be used. The cut laminate is separated into an unnecessary portion and a sealing piece 10 (necessary portion) by rollers 188a and 188b, and the unnecessary portion is wound up into a roll by a scrap removal roller 190 and sealed. The piece 10 (required portion) is temporarily attached to the release sheet 12 and is wound up into a roll by a winding roller 192. Note that a score forming machine may be provided in place of the die cutting machine 186 and the winding roller 192. The scoring machine includes a cutting blade. This cutting blade is used to make cuts in the surface material 24, the first peeling layer 22, the easily broken layer 20, the covering layer 16, and the adhesive layer 14 to form each sealing piece 10a. Here, more specifically, it is as follows. (1) A polyethylene terephthalate film with a thickness of about 50μ is used as the surface material, and silicone resin is applied to one main surface to form the first peeling layer, and then to form the easy-to-break layer. 1st
Vacuum evaporate aluminum onto the release layer of approx.
An easily broken layer of 7μ was formed. Furthermore, on the surface of the easily breakable layer formed by vacuum-depositing aluminum, a silicone resin manufactured by Toray Industries, Inc., which has a lower peeling force than the silicone resin forming the first peeling layer, is applied to a dry film thickness of 0.1 to
A second release layer is formed by part-coating to a thickness of 5μ. On top of that, the EVA listed in Table-1 below
A coating layer is formed by coating a synthetic resin whose main component is resin to a thickness of about 5 to 50 microns.
Thereafter, an acrylic adhesive (BPS-5127) manufactured by Toyo Ink was coated to a dry film thickness of 5 to 50 μm to form an adhesive layer. At this time, the adhesive force a between the first release layer and the easily broken layer is
is approximately 50 g, the adhesive force b between the second release layer and the coating layer is approximately 30 g, and the adhesive force d of the adhesive layer is approximately 50 g.
was approximately 1000 g, and the force c required to peel the release sheet from the adhesive layer was approximately 20 g. The thus constituted pressure-sensitive adhesive material was formed into a sealing piece and pasted on a material to be pasted (paper box, etc.). At this time, the adhesive force d to the adhered material and the adhesive force d' between the coating layer and the adhesive layer were about 1000 g. When an attempt was made to forcibly remove the pasted sealing piece from the material to which it was pasted, the easily breakable layer was torn at the border between the part where the second peeling layer was formed and the part where it was not formed, and the second peeling layer was removed. At the release layer site, the torn easily broken layer was peeled off from the adhered material together with the surface material.

【table】

[Table] (2) A polyester film with a thickness of about 50μ is used as the surface material, and silicone resin is applied to one main surface to form the first release layer, and then to form the easily broken layer. , on top of this first release layer
A printing layer was formed using UV ink to form an easily breakable layer of about 7 μm. Furthermore, on the surface of the easily broken layer consisting of this printed layer, a silicone resin made by Toray Industries, Inc., which has a lower peeling force than the silicone resin forming the first peeling layer, is part-coated to a dry film thickness of 0.1 to 5μ. to form a second release layer. Thereon, a synthetic resin containing EVA resin as a main component is coated to a thickness of about 5 to 50 microns to form a coating layer. After that, apply Toyo Ink's acrylic adhesive (BPS-5127) to a dry film thickness of 5.
An adhesive layer was formed by coating to a thickness of ~50μ. At this time, the adhesive force a between the first release layer and the easily broken layer is about 50 g, the adhesive force b between the second release layer and the coating layer is about 30 g, and the adhesive force d of the adhesive layer is approximately 1000g, and the force c required to peel the release sheet from the adhesive layer is approximately 20g.
It was hot at g. The thus constituted pressure-sensitive adhesive material was formed into a sealing piece and pasted on a material to be pasted (paper box, etc.). At this time, the adhesive force d to the adhered material and the adhesive force d' between the coating layer and the adhesive layer were about 1000 g. When an attempt was made to forcefully peel off the pasted sealing piece from the material to which it was pasted, the easily broken layer was torn at the border between the part where the second peeling layer was formed and the part where the second peeling layer was not formed. At the release layer site, the torn easily broken layer was peeled off from the adhered material together with the surface material. In the embodiment described above, a pressure-sensitive adhesive was used as the adhesive 14a forming the adhesive layer 14, but for example, a sheet-like sealing material 10 as shown in FIG. 10 may be formed. In some cases, pressure-sensitive adhesives may adhere inadvertently.
A rewetting adhesive that dissolves immediately when wet with water and exhibits strong adhesive strength may be applied. As this rewetting type adhesive, for example, a starch-based adhesive such as water-soluble polyethylene, PVA (PVA), or starch glue is used. Note that in the case of such a single-leaf type (sheet-like) sealing material 10, unlike the sealing material 10 shown in the above embodiment, a third release layer 12 is formed on the surface of the surface material 24. Instead, the printed layer 26a may be formed by appropriately printing lines such as "product name" and "price" on the surface of the surface material 24 as shown in FIG. Further, as shown in FIG. 10, the wide sheet-like sealing material 10 is divided into a predetermined size by a widthwise cut 28a consisting of perforations and a lengthwise cut 28b, and the cut 28a and 28b
Alternatively, the sealing piece 10a of an appropriate size may be formed by cutting it off. Further, as the adhesive 14a forming the adhesive layer 14, a heat-sensitive type adhesive may be used, which has no tackiness on the surface at room temperature, but becomes activated and becomes adhesive when heated. As a heat-sensitive adhesive,
For example, an adhesive may be used that is activated when heated, and has adhesive properties mainly made of a hot-melt resin such as polyethylene, and is bonded when cooled. This adhesive is applied to the coating layer 1 of the laminate 30.
When applying the adhesive to the surface of 6, for example, it may be applied using a coating device that applies the adhesive while heating it to an appropriate temperature, and the laminate 30 on which the adhesive 14a is printed and applied blows out cold air. The adhesive 14a is then introduced into a dryer including a device to dry the adhesive 14a to form the adhesive layer 14.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a sealing material that is an embodiment of this invention. FIG. 2 is a sectional view showing the destroyed state of the embodiment. FIGS. 3 to 5 are illustrative views showing an example of an apparatus for manufacturing a laminate used in an embodiment of this invention. FIG. 6 is an illustrative view showing an example of an apparatus for manufacturing a laminate used in an embodiment of this invention. FIG. 7 is an illustrative view showing an example of an apparatus for manufacturing sealing pieces. FIG. 8 is an illustrative view showing another method of forming an easily broken layer. FIG. 9 is a perspective view showing how to use the embodiment. Figure 10 shows
FIG. 1 is a perspective view of the embodiment shown in FIG. 1; Figure 11 shows
FIG. 7 is a perspective view of another embodiment. In the figure, 10 is a sealing material, 12 is a third peeling layer, 14 is an adhesive layer, 16 is a covering layer, and 18 is a second peeling layer.
20 is an easily broken layer, 22 is a first release layer, 24 is a surface material, 26 is a printed layer, 28, 28
a, 28b are cuts, 14a is an adhesive, 16a is a coating material, 18a is a release agent, 20a is an easily broken material, 22
a is a release agent, 24a is a surface material, 100 is a device,
102 is a holding roller, 104 is a release agent coating device,
106a, 106b are rollers, 108 is a storage tank, 1
10 is a dryer, 120 is a laminating device, 122 is a vacuum tank, 124 is an upper chamber, 126 is a winding shaft, 12
8 is a delivery shaft, 130 is a cooling drum, 132 is a lower chamber, 134 is an evaporation source, 136 is a vacuum exhaust system, 1
40 is a stacking device, 142 is a roll loading device, 14
4 is a release agent coating device, 150 is a lamination device, 152
is a roller, 154 is a roller, 156 is a cooler, 1
58 is a winding roller, 160 is a laminating device, 162
1 is a roll loading device, 166 is an adhesive coating device, 1
68a, 168b are rollers, 170 is a storage tank, 17
2 is a dryer, 174 is a winding roller, 220 is a laminating device, 222a is a main roller, 222b is a roller, 224 is a storage tank, 226 is a dryer, 228 is a winding roller, and A is a material to be adhered.

Claims (1)

[Claims for Utility Model Registration] 1. A surface material, an easily broken layer laminated on one main surface of the surface material, a first release layer that facilitates peeling between the surface material and the easily broken layer, a second release layer formed on a part of the main surface of the easily broken layer; a coating layer formed on the second release layer side main surface of the easily broken layer; and a main surface of the coating layer. and an adhesive layer formed on the adhesive layer, where a is the adhesive force between the first release layer and the easily broken layer, and b is the adhesive force between the second release layer and the coating layer, the following formula a>b A sealing material that satisfies the following. 2. The sealing material according to claim 1, wherein the surface material includes one rolled up into a roll. 3. The surface material includes a third release layer formed on the surface opposite to the surface on which the temporary adhesive layer is formed, and when the surface material is rolled up into a roll, the bonded surface material has a third release layer. The sealing material according to claim 2, which is a registered utility model, and satisfies the following formula a>b>c, where c is the force required to separate the layer from the adhesive layer. 4. The sealing material according to claim 1, wherein the surface material includes a sheet-like material. 5. The sealing material according to any one of claims 1 to 4, wherein the surface material includes a synthetic resin film. 6. The sealing material according to claim 5, wherein the surface material includes a transparent synthetic resin film. 7. The surface material includes polyethylene terephthalate film, as claimed in Claim 5 of Utility Model Registration.
The sealing material described in Section 6 or Section 6. 8. The sealing material according to any one of claims 1 to 4, wherein the surface material includes paper. 9. The sealing material according to any one of claims 1 to 8, wherein the first release layer includes a release agent layer coated with silicone resin. 10. The sealing material according to any one of claims 1 to 4, wherein the first release layer includes a release agent layer coated with fluororesin. 11. The sealing material according to any one of claims 1 to 10, wherein the easily broken layer includes a vapor deposited layer. 12. The sealing material according to claim 11, wherein the easily broken layer includes a metal vapor deposited layer. 13 The easily breakable layer includes a vapor deposited layer formed by vapor depositing aluminum, as claimed in claim 12 of the utility model registration.
Sealing material as described in section. 14. The sealing material according to claim 12, wherein the easily broken layer includes a vapor-deposited layer formed by vapor-depositing silver. 15. The sealing material according to any one of claims 1 to 10, wherein the easily broken layer includes a printed layer. 16. The sealing material according to claim 15, wherein the easily broken layer includes a silver printing layer. 17. The sealing material according to any one of claims 1 to 15, wherein the second release layer includes a release agent layer coated with silicone resin. 18. The sealing material according to any one of claims 1 to 16, wherein the second release layer includes a release agent layer coated with fluororesin. 19. The sealing material according to any one of claims 1 to 18, wherein the coating layer includes a resin layer coated with a synthetic resin. 20 The coating layer includes a resin layer coated with a synthetic resin containing EVA resin as a main component,
The sealing material described in claim 19 of the utility model registration claim. 21 The adhesive layer includes an adhesive layer made of adhesive.
The sealing material described in any of the paragraphs. 22 The adhesive layer includes an adhesive layer coated with a pressure-sensitive adhesive.
Sealing material described in paragraph 21. 23 The adhesive layer includes an adhesive layer coated with a re-wet adhesive.
Sealing material described in paragraph 21. 24 The adhesive layer includes an adhesive layer coated with a heat-sensitive adhesive.
Sealing material described in paragraph 21. 25 The adhesive layer includes an adhesive layer mainly composed of a heat-melting resin.
Sealing material as described in section. 26. The sealing material according to any one of claims 1 to 25, wherein the surface material includes a printed layer formed on its main surface.