JPH0625915B2 - Destructible patch - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an easily destructible adhesive material, in which when a surface layer is peeled off by hand, an easily destructible layer thereunder is easily broken, and in particular, For example, the present invention relates to an easily destructible patch, which is suitable for use as a sticker for prevention of replacement that is stuck to a price tag or the opening of a container.

(Prior Art) Conventionally, a replacement prevention label used as a price tag or the like has an appropriate perforation or notch on the surface base material, and is peeled off at a store or the like to be replaced with another price tag. Sometimes, it is known that it is possible to discriminate at a glance that it is about to be separated due to separation / damage at perforations or cuts.

On the other hand, the adhesive paper that is attached to the opening of the container to indicate the unopened state may be, for example, a product placed on a display shelf in a store depending on the material of the opening of the package and the surface treatment method. It can be picked up by hand and easily peeled off on the spot, and it can be reattached after mixing foreign substances into the package so that it cannot be seen that it was peeled off. Then I don't know if the package is already opened. Therefore, the contents of the package may be touched. For example, the candy in the package may be mixed with poisonous substances.

Therefore, recently, an adhesive label which is known to have been peeled off after being applied has been put on the market and is disclosed in Japanese Utility Model Publication No. 59-1077.

The pressure-sensitive adhesive label is attached by peeling off the release sheet and pressing the exposed surface of the pressure-sensitive adhesive coating layer against the opening (not shown) of the package. When the adhesive label attached to the opening is peeled off, only the portion of the vapor deposition film that was not directly vapor-deposited on the film substrate by the release agent coating layer remains adhered to the opening portion with the adhesive coating layer. . Further, when the opening portion is opened, the vapor deposition layer film that remains attached to the opening portion is attached or torn, whereby the opened state can be known.

(Problems to be solved by the invention) However, when such a pressure-sensitive adhesive label is peeled off, a part of the vapor deposition film is unlikely to remain on the pressure-sensitive adhesive coating layer surface, and thus the pressure-sensitive adhesive label is adhered to the film surface. Forming characters etc. with the vapor deposition film that has been peeled off and remained
It can't be done easily. Moreover, when the film base is peeled off, a part of the adhesive coating layer remains on the adhered portion of the adherend,
The exposed surface of the pressure-sensitive adhesive coating layer has drawbacks such as stickiness and dust, and also has a problem in hygiene.

Therefore, a main object of the present invention is to provide an adhesive material which is found to be peeled off after sticking, does not show an adhesive on the peeled surface, and is not sticky.

(Means for Solving the Problems) The present invention is formed on the back surface of the sticking base material in order to facilitate separation of the sticking base material and the easy-destructible layer described below. Further, an easily destructible sheet, an easily destructible film or an easily destructible foil is polymerized and adhered to the surface of the first release layer and the surface of the first release layer on the side opposite to the adhesive substrate side by the temporary adhesion layer. And a second peeling layer formed on a part of the surface of the easy breaking layer on the side opposite to the temporary adhesion layer side, and the easy breaking on the second peeling layer side. The coating layer formed on the surface of the layer, the adhesive layer formed on the surface of the coating layer on the side opposite to the second release layer side, and the side opposite to the surface on which the first release layer is formed The third formed on the surface of the adhesive substrate of
Including the release layer, the adhesive is rolled into a roll,
The adhesive force between the first peeling layer and the easily destructible layer is a, the adhesive force between the second peeling layer and the covering layer is b, and the third adhesive material is bonded when rolled into a roll. When the force required to separate the peeling layer and the adhesive layer from is defined as c, the adhesive material is a destructible adhesive material that satisfies the following formula a>b> c.

(Operation) The adhesive force between the first peeling layer and the easily destructible layer is formed so as to be larger than the adhesive force between the second peeling layer and the covering layer, and the second peeling layer is the easily destructible layer. Since a part of the surface of the easy-destructible adhesive material adhered to the material to be adhered has a second adhesive strength, Different from the part where the release layer is formed and the part where the release layer is not formed, when the adhesive substrate on the surface is peeled off, at the boundary between the part where the second release layer is formed and the part where the second release layer is removed. The easily destructible layer is torn, the easily destructible layer and the coating layer in the portion where the second peeling layer is missing remain on the surface of the adherend, and the other portions are peeled off from the coating layer.

(Effect of the Invention) According to the present invention, the adhesive force between the first peeling layer and the easily destructible layer is larger than the adhesive force between the second peeling layer and the covering layer,
Moreover, since the second peeling layer is formed on a part of the surface of the easy-destructible layer on the side opposite to the temporary adhesion layer side, the adhesive force between the coating layer and the easy-destructible layer is The adhesive force differs between the part where the release layer is formed and the part where the part is removed, and when the adhesive substrate is peeled off, only the easily destructible layer of the part where the second release layer is formed is covered. Peel from the layer. Therefore, the easily destructible layer is separated from the other parts by peeling off and cannot be bonded again as in the original state, so that it is understood that the easily destructible layer has been separated. Therefore,
It can be seen at a glance that the adhered adhesive material has been peeled off, and moreover, it is possible to easily determine whether or not a poisonous substance or the like is mixed in the package. Furthermore, since the coating layer is formed over the entire surface of the adhesive layer, it is
After the surface material is peeled off, the surface of the adhesive layer is not exposed and sticky, and it is impossible to attach the surface material again 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 more apparent from the following detailed description of the embodiments with reference to the drawings.

(Example) FIG. 1 is a sectional view of an adhesive material according to an embodiment of the present invention. The adhesive material 10 of this embodiment is used as a seal or the like, and is wound in a roll shape such that the adhesive material 10B is wound on the adhesive material 10A as shown in FIG. There is.

This adhesive material 10 includes an adhesive layer 14, a covering layer 16, a second peeling layer 18, an easily destructible layer 20, a temporary adhesion layer 21, and a first peeling layer 2.
2 and the adhesive base material 24 are sequentially laminated. On the surface of the adhesive base material 24, the third peeling layer 12 is formed on the surface of the adhesive material 10 </ b> B to be wound and bonded to the adhesive layer 14.
Are formed. Further, a printing layer 26 is formed on the surface of the adhesive base material 24.

The subsequent steps are similarly formed.

The adhesive substrate 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. .

Examples of the sticking base material 24 include materials such as polyester and nylon film which are relatively elastic and less likely to shrink due to heat, and paper and synthetic paper. When the adhesive material 10 is peeled off, it is better to select a transparent or semitransparent material so that the traces of the peeled off material can be seen well from the surface side of the adhesive base material 24. By doing so, it is easy for a part of the easily destructible layer 20 to remain on the adherend A and to be partly peeled off from the adherend A to be stuck to the sticking base material 24. It is easy to understand.

The first release layer 22 temporarily adheres the adhesive base material 24 and the easily destructible layer 20 to a state that cannot be re-adhered, and facilitates the separation of the adhesive base material 24 and the easily destructible layer 20. And, for example,
The release agent layer is formed by coating a release agent such as silicone resin, fluororesin, balfin, wax, etc., and is formed between the adhesive base material 24 and the easily destructible layer 20.

The easily destructible layer 20 is formed by mixing an aluminum foil or a copolymer resin of vinyl chloride and acrylic with an extender pigment (for example, titanium white, calcium carbonate) and forming a film such as a synthetic resin film typified by a brittle film. ,
An example is an easily destructible sheet that can be easily torn by hand.

Further, among these, when the adhesive material 10 is bent and adhered to a bent portion, the adhesive base material 24 resists the adhesive force of the temporary adhesive layer 21 and is not peeled off in an attempt to restore the original state. It should be relatively flexible.

The temporary adhesion layer 21 is a layer for adhering the easily destructible layer 20 and the adhesive substrate 24, and the temporary adhesion layer 21 is a two-component reactive polymer resin such as urethane resin, other EVA resin, PVA, vinyl chloride. , Acrylic resin or the like is coated on the surface of the first release layer 22. Other examples of the temporary adhesion layer 21 include an adhesive layer coated with a thermosetting adhesive such as polyester or polyurethane.

The second release layer 18 is formed by pattern-printing a release agent such as a silicone resin, a fluororesin, or a wax on a part of the surface of the easily destructible layer 20. For example,
As described later, when the adhesive base material 24 is peeled off and the easily destructible layer 20 is destroyed by pattern-printing and applying an image line such as a character or a picture such as "opened", as described later, By making an image line such as the character "opened" appear, it is possible to further form the adhesive material 10 that more closely matches the purpose of use.

The coating layer 16 is a layer that covers the adhesive layer 14 in order to prevent the adhesive layer 14 from being exposed and sticky when the adhesive base material 24 is peeled off as described later. This coating layer 16 is made of, for example, urethane resin, EVA resin, P
VA, vinyl chloride, nitrocellulose, polyamide,
The acrylic resin or the like is used as the second peeling layer 1 of the easily destructible layer 20.
8 is formed by coating the formed surface.

The adhesive layer 14 is for giving the adhesive material 10 an adhesive force for adhering to the adherend A, and is, for example, an adhesive layer formed by coating a pressure-sensitive adhesive, and the coating layer 16
Is formed on the surface opposite to the second peeling layer 18.

In this adhesive material 10, the adhesive force between the first peeling layer 22 and the easily destructible layer 20 is a, the adhesive force between the second peeling layer 18 and the covering layer 16 is b, and the adhesive force of the adhesive layer 14 is Is d, and the third peeling layer 12 of the adhesive material 10A in which the adhesive layer 14 of the adhesive material 10B of the adjacent adhesive materials 10A and 10B is joined thereto.
The force required for further peeling is defined as c, and the easily destructible layer 20
When the force required to destroy is defined as e, the following formula c <b <e <a <d is satisfied.

In order to use this adhesive material 10, first, a roll-shaped adhesive material 10B is pulled out, a predetermined length is pulled out while being peeled off from the adjacent adhesive material 10A, and then a predetermined adhesive is applied at a cut 28 such as a perforation. It is cut into pieces 10a and is attached as a price tag or to the opening of the candy package by the adhesive layer 14 as shown in FIGS. 9 (a), (b) and (c), for example.

As described above, in order to open the opening portion of the package to which the adhesive material 10 is attached, the attached adhesive material 10 must be peeled off and the sealing portion must be opened.

In this case, the easily destructible layer 20 is temporarily attached to the adhesive base material 24 via the first peeling layer 22, and the easily destructible layer 20 is the covering layer 16.
In the portion where the second peeling layer 18 is formed, the adhesion is weaker than that in the portion where the covering layer 16 is directly adhered. Therefore, as shown in FIG. 2, if the adhesive base material 24 is to be peeled off, the easily destructible layer 20 in the second peeling layer 18 and the easily destructible layer in the portion directly bonded to the coating layer 16 are removed. The fragile layer 20 is torn at the boundary with the second peeling layer 18
The peelable layer 20 is peeled off from the surface of the
Part (the portion where the second peeling layer 18 is formed) of the above is still peeled off from the material A to be adhered while being adhered to the adhesion base material 24.

Then, in the easily destructible layer 20, the portion where the second peeling layer 18 is not formed remains as it is attached to the adherend A. Therefore, once the sticking base material 24 is peeled off, the easily destructible layer 20 is broken at the boundary between the portion where the second peeling layer 18 is formed and the portion where the second peeling layer 18 is not formed, and the sticking substrate is again peeled off. Since the material 24 cannot be reattached to the surface of the coating layer 16 and cannot be restored to the original state, it can be seen at a glance that it is in the opened state.

In this specification, the most suitable one in each case is listed, and a sheet, a film and their equivalents are collectively referred to as "sheet" or "film". Further, when the term "sheet" is used, it does not mean that only a sheet-type one but also a take-up type (web) type is included.

Hereinafter, in order to further clarify the examples according to the present invention, further description will be given based on an example of a method for producing the adhesive material according to the present invention.

3 to 5 are schematic views showing an example of an apparatus for manufacturing the laminated body 30 used in the embodiment of the present invention.

In this laminated body 30, the first peeling layer 22, the easily destructible layer 20, the second peeling layer 18, and the coating layer 16 are laminated in this order on the back surface of the sticking substrate 24 to obtain a sticking substrate. The third peeling layer 12 is laminated on the surface opposite to 24.

The apparatus 100 includes a holding roller 102 for holding the sticking material 24a forming the band-shaped sticking base material 24 in a roll shape. The adhesive material 24a held by the holding roller 102
Is unwound at one end and is guided to the release agent applying device 104.

The release agent applying device 104 is for printing and applying a release agent 22a such as silicon resin, fluororesin, paraffin, or wax on one surface of the adhesive material 24a. 106b,
The release agent 22a is applied while including the storage tank 108 and rotating the rollers 106a and 106b. As the release agent coating device 104, 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.

The release agent 22a is guided to a dryer 109 including a heater provided next and dried. In the dryer 110, the release agent 22 a printed and applied to the adhesive material 24 a is dried to form the first release layer 22.

The adhesive material 24 having the first release layer 22 formed in this manner
The a is guided to the winding device 112.

Next, in order to stack the third release layer 12 again, the third release layer 12 is loaded into a device similar to the release agent applying device 104 described above, and the release force is different from that of the release agent 22a in the same procedure as described above. A release agent is applied by printing to form the third release layer 12. As the release agent for forming the third release layer 12, a release agent containing silicon resin, fluororesin or the like as a main component is selected.

The adhesive material 24a on which the first release layer 22 and the third release layer 12 are formed in this way is then sent to the laminating apparatus 120 that forms the easily destructible layer 20. This laminating device 120
Includes a device for loading a wound body obtained by winding the adhesive material 24a. The aluminum foil 20a, which is an easily destructible material that forms the easily destructible layer 20 pulled out from this rolled body, is 2
Resin or adhesive 2 that forms the temporary adhesion layer 21 with two rollers
The resin or adhesive 21a is guided to a coating device 122 including a pan that stores 1a, and the resin or adhesive 21a is applied to the surface of the aluminum foil 20a as the two rollers rotate, and then the two rollers 12
Adhesive material 2 guided between 4 and 126 and guided separately
4a of the first release layer 22 on the surface of the aluminum foil 20a
Are superposed and adhered by the surface of the adhesive 21a. Then, it is guided to the bonding device 128. As the adhesive device, when an adhesive containing a water-soluble resin such as PVA-based, vinyl acetate-based, acrylic-based, or a solvent-based adhesive made of vinyl chloride vinyl acetate, urethane, acrylic, or the like is used as the adhesive 21a,
If a "dryer" is used and a rubber-based or EVA-based hot melt adhesive is used, a "cooler" is used.

The laminating apparatus 220 shown in FIG. 8 is for polymerizing and bonding the easily destructible material 20a forming the easily destructible layer 20 to the surface of the first peeling layer 22 formed on the surface of the adhesive base material 24. Yes, the main roller 222a and its main roller 222
It includes a roller 222b provided so as to face a. Then, the easily destructible material 20a made of a brittle film is fed between the main roller 222a and the roller 222b. A temporary adhesion layer 21 formed by applying a pressure-sensitive adhesive or the like in advance is formed on the back surface of the easily destructible material 20a, and the temporary adhesion layer 21 is provided on the surface of the temporary adhesion layer 21. The release material 21b is temporarily attached so as not to adhere to the surface. Then, the easily destructible material 20a, the temporary adhesion layer 21, and the peeling material 2
The laminated body of 1b is rolled up, and the laminated body pulled out from this rolled body is peeled off only the peeling material 21b from the temporary adhesion layer 21 before being sent to the main roller 222a and the roller 222b. The adhesive layer 21 is exposed, and in that state, the adhesive layer 21 is fed to the main roller 222a and the roller 222b, and laminated and adhered to the surface of the first peeling layer 22 of the adhesive material 24a. In this way, the easily destructible layer 20 is formed and then wound around the winding roller 228.

The wound body of the adhesive base material 24 on which the easily destructible layer 20 is formed is sent to the laminating apparatus 140 shown in FIG.

The laminating device 140 shown in FIG. 5 includes a device 142 for loading the roll of the adhesive substrate 24. The adhesive base material 24 pulled out from the roll body loading device 142 for loading the roll body.
Is guided to the next release agent applying device 144. The release agent applying device 144 is for applying a release agent 18a such as a silicone resin, a fluororesin, paraffin, or wax to one surface of the easily destructible layer 20 by printing.
It 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. The release agent 18a is introduced into a dryer 149 including a heater provided next and dried. As the release agent coating device 144, 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.

The release agent 18a forming the second release layer 18 is partially printed and applied on the surface of the easily destructible layer 20, and is formed by pattern-printing an image line such as "opened". To be done. The adhesive base material 24 to which the release agent 18a is applied is sent to the laminating device 150 for laminating the coating material 16a forming the next coating layer 16.

The coating material laminating apparatus 150 includes a roller 152 for applying the coating material 16a such as EVA resin. In the laminating apparatus 150, the surface of the easily destructible layer 20 coated with the release material 18a forming the second release layer 18 is coated while being pressed by the roller 154 for laminating the coating material 16a and melted. In this state, it is guided to the cooler 156 provided next.

The cooler 156 is for cooling the coating material 16a. In the cooler 156, the coating material 16 a is cooled and solidified to form the coating layer 16, and the first peeling layer 22, the easily destructible layer 20, and the second peeling layer 1 are formed on the back surface of the adhesive substrate 24.
8 and the coating layer 16 are sequentially laminated to form a laminated body 30. The laminated body 30 is wound around the winding roller 158.

The laminated body 30 thus formed is then loaded into the laminating apparatus 160 shown in FIG.

FIG. 6 is an illustrative view showing a laminating apparatus 160 for laminating the adhesive layer 14 on the laminated body 30.

The stacking device 160 includes a roll load device 162 that loads a roll of the stack 30.

The laminated body 30 pulled out from the wound body loading device 162 of the laminated body 30 is guided to the adhesive application device 166 which is the application device of the adhesive layer 14a with the surface of the coating layer 16 as the lower surface in FIG. In the adhesive application device 166, an adhesive such as a pressure sensitive adhesive is printed and applied.

The adhesive applying device 166 is used for the coating layer 16 of the laminated body 30.
For applying the adhesive 14a to the surface of the surface,
It includes a main roller 168a and a roller 168b provided to face the main roller 168a. The lower portion of the main roller 168a is dipped in the adhesive agent 14a stored in the storage tank 170.
8a and the roller 168b, the main roller 168a adheres the adhesive 14 to the surface of the coating layer 16 surface of the laminated body 30.
a is printed and applied.

The laminated body 30 to which the adhesive 14a is printed and applied is
For example, it is guided to a dryer 172 including a heater. In the dryer 172, the adhesive 14 a printed and applied to the laminated body 30 is used.
Is dried to form the adhesive layer 14, and the laminate of the adhesive layer 14 and the laminated body 30 is wound on the winding roller 174.

In order to label the adhesive material produced as described above, the adhesive material may be loaded into an apparatus for producing a label including a printing apparatus for this laminated body.

FIG. 7 is an illustrative view showing one example of an apparatus for manufacturing a label.

The label manufacturing apparatus 180 includes a holding device 182 for loading a roll of the laminated body 30 in which the release sheet 12 is not laminated on the surface of the adhesive layer 14. The laminate including 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 18
4 is a known printing machine such as an offset printing machine. Then, the printing layer 184 is formed on the surface of the sticking base material 24 by the printing device 184, for example, on which an image line such as "product name" is printed. In this way the printing layer 2
The laminate having 6 formed thereon is guided to the die cutting machine 186.
The die-cutting machine 186 includes a so-called die cutter having a cutting blade, and the die cutter allows the adhesive base material 24, the first release layer 22, the easily destructible layer 20, the coating layer 16 and the adhesive layer 14 to have cuts of appropriate shapes. Can be inserted. The printed layer 26 may be formed on the surface of the adhesive base material 24 in advance before forming the third release layer 12.

The die-cutting machine 186 may be a roll with a cutting blade, a so-called die roll.

The scored laminate has rollers 188a and 18a.
At 8b, the unnecessary portion and the label 10 (required portion) are separated, and the unnecessary portion is wound into a roll by the dust removing roller 190, and the label 10 (required portion) is temporarily attached to the release sheet 12. In this state, it is wound into a roll by the winding roller 192. A cut forming machine may be provided instead of the die cutting machine 186 and the winding roller 192. The score forming machine includes a cutting blade. This cutting blade is for making a cut in the adhesive base material 24, the first peeling layer 22, the temporary adhesion layer 21, the easily destructible layer 20, the coating layer 16 and the adhesive layer 14 to form each label piece 10a. Is.

Here, the more specific description is as follows.

(1) To use a polyethylene terephthalate film having a thickness of about 50 μm as a sticking base material, apply a silicone resin to the back surface of the polyethylene terephthalate film to form a first release layer, and then form an easily destructible layer. An aluminum foil was temporarily attached to the first release layer with an adhesive to form an easily destructible layer of about 7 μm.

Further, on the surface of the easily destructible layer made of this aluminum foil, a silicon resin manufactured by Toray Industries, Inc. having a smaller peeling force than the silicon resin forming the first peeling layer is formed so that the dry film thickness becomes 0.1 to 5 μm. To form a second release layer.

Then, a synthetic resin containing EVA resin as a main component shown in Table 1 below is coated to a thickness of about 5 to 50 μm to form a coating layer. After that, dry acrylic film adhesive (BPS-5127) made by Toyo Ink Co., Ltd.
An adhesive layer was formed by coating so as to have a thickness of 0 μ.
At this time, the adhesive force (a) between the first peeling layer and the easily destructible 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
It was about 1,000 g, and the force (c) required to peel the release sheet from the adhesive layer was about 20 g.

The pressure-sensitive adhesive material thus constructed was separated into labels and attached to an adherend (paper box or the like).

At this time, the adhesive force (d) to the adherend and the adhesive force (d ') between the coating layer and the adhesive layer were about 1,000 g.

When the attached label piece was forcibly peeled from the adherend, the easily destructible layer was torn at the boundary between the portion where the second peeling layer was formed and the portion where the second peeling layer was not formed. At the peeling layer portion, the torn destructible layer was peeled off from the adherend together with the sticking substrate.

(2) To use a polyester film having a thickness of about 50 μm as a sticking base material, apply a silicone resin to the back surface thereof to form a first release layer, and then to form an easily destructible layer,
A so-called brittle film was temporarily attached with an adhesive to form an easily destructible layer of about 7 μm.

Further, the dry film thickness of Toray Co., Ltd. made from Toray Co., Ltd. is 0.1 to 5 μm less than the silicone resin forming the first release layer on the surface of the easily destructible layer made of this brittle film. Part coat to form a second release layer.

On top of that, synthetic resin whose main component is EVA resin is
A coating layer is formed by coating with a thickness of about 50 μm. Then, Toyo Ink's acrylic adhesive (BPS-
5127) was coated to a dry coating thickness of 5 to 50 μm to form an adhesive layer. At this time, the adhesive force (a) between the first peeling layer and the easily destructible layer was about 50 g,
The adhesive force (b) between the peeling layer and the coating layer is about 30 g, and the adhesive force (d) of the adhesive layer is about 1,000 g,
The force required to release the release sheet from the adhesive layer (c)
Was about 20 g.

The pressure-sensitive adhesive material thus constructed was separated into labels and attached to an adherend (paper box or the like).

At this time, the adhesive force (d) to the adherend and the adhesive force (d ') between the coating layer and the adhesive layer were about 1,000 g.

When the attached label piece was forcibly peeled from the adherend, the easily destructible layer was torn at the boundary between the portion where the second peeling layer was formed and the portion where the second peeling layer was not formed. At the peeling layer portion, the torn destructible layer was peeled off from the adherend together with the sticking substrate.

In the above embodiment, the adhesive 1 formed by the adhesive layer 14
A pressure-sensitive adhesive was used as 4a.
When forming a single-wafer type (sheet-shaped) adhesive material 10 as shown in FIG. 0, a pressure-sensitive adhesive adheres inadvertently, so when wetted with water, it immediately dissolves and a strong adhesive force is obtained. A rewet type adhesive as shown may be applied.

As the re-wet type adhesive, for example, a starch-based adhesive such as water-soluble polyethylene, Poval (PVA), or starch paste is used. In addition, in the case of such a sheet-side (sheet-like) adhesive material 10, unlike the adhesive material 10 as shown in the above-mentioned embodiment, the third release layer 12 is applied to the adhesive base material 24. As shown in FIG. 10, lines such as “product name” and “price” are appropriately printed on the surface of the adhesive base material 24 without forming on the surface of the printing base 26a to form the printing layer 26a. Good.

Further, as shown in FIG. 10, the cut also divides the wide sheet-shaped adhesive material 10 into a predetermined size by a cut 28a in the width direction and a cut 28b in the length direction which are perforations. The adhesive pieces 10a having an appropriate size may be formed by separating the pieces 28a and 28b.

As the adhesive 14a for forming the adhesive layer 14, a heat-sensitive type adhesive which has no surface tackiness at room temperature but which is activated when heated to generate an adhesive force may be used. As a heat-sensitive adhesive, the adhesive activates when heated,
For example, an adhesive which is mainly composed of a heat-melting resin such as polyethylene and which has an adhesive property and which is bonded by being cooled may be used. The adhesive is applied to the coating layer 16 of the laminate 30.
When it is applied to the surface of the adhesive sheet, for example, it may be applied using an application device that applies an adhesive agent while heating it to an appropriate temperature.
The adhesive 14a is led to a drier including a device for blowing cold air.
Is dried to form the adhesive layer 14.

[Brief description of drawings]

FIG. 1 is a sectional view of an adhesive material according to an embodiment of the present invention. FIG. 2 is a sectional view showing a state in which the above-mentioned embodiment is broken. FIG. 3 to FIG. 5 are schematic views showing an example of an apparatus for manufacturing a laminated body used in the embodiment of the present invention. FIG. 6 is an illustrative view showing one example of an apparatus for producing a laminate used in the embodiment of the present invention. FIG. 7 is an illustrative view showing one example of an apparatus for manufacturing a label. FIG. 8 is an illustrative view showing another method for forming the easily destructible layer. FIG. 9 is a perspective view showing a method of using the embodiment. FIG. 10 is a perspective view of the embodiment shown in FIG. FIG. 11 is a perspective view of another embodiment. In the figure, 10 is an adhesive material, 12 is a third release layer, and 14
Is an adhesive layer, 16 is a coating layer, 18 is a second release layer, 20 is an easily destructible layer, 21 is a temporary adhesion layer, 22 is a first release layer, 24 is an adhesive base material, 26 is a printing layer, 28 , 28a and 28b are notches, 14a is an adhesive, 16a is a covering material, 18a is a release agent, 20a is an easily destructible material, 22a is a release agent, 24a is an adhesive material, 100 is a device, 102 is a holding roller, 104 is Release agent coating device, 106a and 106b are rollers, 108 is a storage tank, 110 is a dryer, 120 is a laminating device, 122 is a coating device, 122 is a coating device, 124 is a roller, 126 is a roller, 128 is a bonding device, 140 is a laminating device, and 142 is a Winding body loading device,
144 is a release agent applying device, 150 is a laminating device, 152 is a roller, 154 is a roller, 156 is a cooler, 158 is a take-up roller, 160 is a laminating device, 162 is a roll loading device, 166 is an adhesive applying device, 168a and 168b are rollers, 170 is a storage tank, 172 is a drier, 174 is a take-up roller, 220 is a laminating device, 222a is a main roller,
222b is a roller, 224 is a storage tank, 226 is a drier, 2
28 is a winding roller, and A is an adherend.

Claims (23)

[Claims] 1. A sticking base material, and a first peeling layer formed on the back surface of the sticking base material for facilitating peeling of the sticking base material and an easily destructible layer described below. An easily destructible layer formed by polymerizing and adhering an easily destructible sheet, an easily destructible film or an easily destructible foil with a temporary adhesion layer on the surface of the first peeling layer opposite to the side of the adhesive substrate. A second peeling layer formed on a part of the surface of the easily destructible layer on the side opposite to the temporary adhesion layer side, and a coating formed on the surface of the easily destructible layer on the second peeling layer side. A layer, an adhesive layer formed on the surface of the coating layer on the side opposite to the second release layer side, and a surface of the adhesive substrate on the side opposite to the surface on which the first release layer is formed. The third adhesive layer is formed, and the adhesive material is wound into a roll and the adhesive force between the first adhesive layer and the easily destructible layer is set to a, and the adhesive layer between the second adhesive layer and the covering layer is formed. When the adhesive force is b and the force required to separate the third peeling layer and the adhesive layer of the adhesive material bonded together when wound into a roll is c, the following formula a>b> c Degradable adhesive material that satisfies the requirements. 2. The adhesive base material includes a sheet-shaped material.
The easily destructible patch according to claim 1. 3. The easily destructible patch according to claim 1 or 2, wherein the patch base material contains a synthetic resin film. 4. The easily destructible patch according to claim 3, wherein the patch substrate comprises a transparent synthetic resin film. 5. The easily destructible patch according to claim 3, wherein the patch substrate contains a polyester film. 6. The easily destructible adhesive material according to claim 1, wherein the adhesive base material includes paper. 7. The easily destructible patch according to any one of claims 1 to 6, wherein the first release layer includes a release agent layer formed by coating a silicone resin. 8. The easily destructible patch according to any one of claims 1 to 6, wherein the first release layer includes a release agent layer coated with a fluororesin. 9. The easily destructible patch according to any one of claims 1 to 8, wherein the easily destructible layer includes a metal foil layer. 10. The easily destructible patch according to claim 9, wherein the easily destructible layer includes an aluminum foil layer. 11. The easily destructible patch according to any one of claims 1 to 8, wherein the easily destructible layer includes a brittle film layer. 12. The easily destructible patch according to claim 1, wherein the temporary adhesion layer includes an adhesive layer. 13. The temporary adhesion layer includes a synthetic resin coating layer,
The easily destructible patch according to claim 1. 14. The easily destructible patch according to any one of claims 1 to 13, wherein the second release layer includes a release agent layer formed by coating a silicone resin. 15. The first release layer includes a release agent layer formed by coating a fluororesin.
Item 14. The easily destructible patch according to any one of items 13 to 13. 16. The coating layer according to claim 1, further comprising a resin layer coated with a synthetic resin.
The easily destructible patch according to any one of 15 items. 17. The easily destructible patch according to claim 16, wherein the coating layer includes a resin layer formed by coating a synthetic resin containing EVA resin as a main component. 18. The easily destructible patch according to any one of claims 1 to 17, wherein the adhesive layer includes an adhesive layer made of an adhesive. 19. The easily destructible patch according to claim 18, wherein the adhesive layer includes an adhesive layer formed by applying a pressure-sensitive adhesive. 20. The easily destructible patch according to claim 18, wherein the adhesive layer includes an adhesive layer formed by applying a rewet type adhesive. 21. The easily destructible patch according to claim 18, wherein the adhesive layer includes an adhesive layer formed by applying a heat-sensitive adhesive. 22. The easily destructible patch according to claim 21, wherein the adhesive layer includes an adhesive layer mainly composed of a heat-meltable resin. 23. The easily destructible patch according to any one of claims 1 to 22, wherein the patch substrate includes a printed layer formed on the surface thereof.