JP2584432B2 - Manufacturing method of labels for preventing sticking - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a label for preventing sticking, and more particularly to a method for manufacturing a sticking preventing label used for, for example, a price tag or a label attached to an opening of a container.

[0002]

2. Description of the Related Art Conventionally, a label for preventing replacement, which is used as a price tag or the like, has an appropriate perforation or notch on a surface base material, and is peeled off at a store or the like to replace it with another price tag. It is known that when it is done, it can be determined at a glance that it is separated or broken at a perforation or cut, and that it is about to be peeled.

[0003] On the other hand, the sticking paper stuck on the opening of the container to indicate the unopened state is arranged on a display shelf at a store, for example, depending on the material of the opening of the package and the surface treatment method. The product can be picked up and easily peeled off on the spot, and after adhering foreign matter etc. into the package, it can be pasted again so that it is not obvious that the product has been peeled off. Just looking at it does not tell if the package has already been opened. Therefore, the contents of the package may be modified. For example, it is as if a toxic substance is mixed in the sweets in the package.

[0004] Therefore, recently, a sticking paper which is known to have peeled off after sticking has come to market. FIG. 7 is a sectional view showing such a sticking paper. The sticking paper 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 metal layer is formed on the surface as a vapor deposition layer 16.
Therefore, a part of the vapor deposition layer 16 is
Are not directly deposited on the film 20 due to the presence of Further, the vapor deposition layer 16 and the release sheet 12 are temporarily attached with the pressure-sensitive adhesive layer 14.

[0005] The adhesive sheet 10 is attached by peeling the release sheet 12 and pressing the exposed surface of the adhesive layer 14 against an opening (not shown) of the package. Then, when the adhesive paper 10 attached to the opening was peeled off, only the portion of the deposition layer 16 ′ that was not directly deposited on the film 20 by the silicon layer 18 was adhered to the opening with the adhesive layer 14. Will remain. Further, when the opening is opened, the remaining deposited layer 16 ′ adhered thereto is cut or torn, whereby the opened state can be known.

[0006]

However, since the metal of such a sticking paper 10 is deposited on the film 20 and the silicon layer 18, the film to be deposited is limited to polyester or the like. In addition, it is necessary to satisfy various other conditions, which has a disadvantage of increasing costs. In addition, when the film 20 is peeled off, a part of the adhesive layer 14 remains on the adhered portion of the material to be adhered, and the exposed surface of the adhesive layer 14 has stickiness and dust. Also, there was a problem in hygiene.

SUMMARY OF THE INVENTION Therefore, a main object of the present invention is to provide a method for producing a label for preventing re-sticking, which is known to have been peeled off after sticking and does not require a vapor deposition step.

[0008]

According to a first aspect of the present invention, a force required for separating a first layer from a second layer by a release agent layer is defined as a, and the adhesive layer is adhered to the first layer. Assuming that the adhesive force with the material is b and the force required to peel the release sheet from the adhesive layer is c, the method for producing a label for preventing re-placement satisfying the following expression c <a <b, Forming an adhesive layer on the sheet, laminating a release agent layer containing wax on one main surface of the first layer, and forming a second release layer on the surface of the release layer of the first layer. Coating a resin containing EVA to form a layer to form a second layer; and an adhesive layer surface of the release sheet;
Superposing and laminating the surface of the second layer laminated on the first layer.

According to a second aspect of the present invention, the force required to separate the first layer from the second layer with the release agent layer is defined as a, and the adhesive force of the adhesive layer with the material to be adhered is defined as a. b, and the force required to peel the release sheet from the adhesive layer is c, and the method for producing a label for preventing replacement that satisfies the following formula c <a <b is provided. Forming, laminating a release agent layer containing wax on one main surface of the first layer, and urethane resin forming a second layer on the surface of the release agent layer of the first layer Coating with a resin containing
Forming a layer, and laminating and laminating an adhesive layer surface of the release sheet and a surface of a second layer laminated on the first layer. It is.

According to a third aspect of the present invention, the force required for separating the first layer from the second layer by the release agent layer is defined as a, and the adhesive force of the adhesive layer with the material to be adhered is defined as a. b, and the force required to peel the release sheet from the adhesive layer is c, and the method for producing a label for preventing replacement that satisfies the following formula c <a <b is provided. Forming, laminating a release agent layer containing wax on one main surface of the first layer, and forming metal powder for forming a second layer on the surface of the release agent layer of the first layer. Forming a second layer by coating a synthetic resin obtained by mixing the above, and laminating and laminating an adhesive layer surface of the release sheet and a surface of a second layer laminated on the first layer. And a method for producing a label for preventing sticking.

[0011]

Since the synthetic resin forming the second layer is coated on the surface of the release agent layer of the first layer forming the surface layer, it is temporarily adhered to the surface of the release agent layer in a releasable state. It is laminated.

[0012]

According to the present invention, since the second layer is laminated on the first layer by coating or the like, it can be manufactured without performing vapor deposition as in the prior art. Moreover,
If the second layer and the first layer are temporarily attached via a release agent layer in a state where they cannot be re-attached and the label is to be peeled from an opening portion of a package or the like, the first layer Is peeled off from the second layer and cannot be adhered again, indicating that the attached label has been peeled off. Further, if 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 attached label has been peeled off. In addition, since the synthetic resin forming the second layer is coated on the surface of the release agent layer of the first layer forming the surface layer, it is temporarily adhered and laminated on the surface of the release agent layer. Since the agent layer can be peeled off by hand, a label can be obtained which does not require a conventionally required deposition step.

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.

[0014]

FIG. 1 is a sectional view showing an example of a label manufactured by a manufacturing method according to the present invention. The label 10 is temporarily attached on a release sheet 12, and an adhesive layer 14, a resin layer 16 as a second layer, a release agent layer 18, and a surface layer 20 as a first layer are sequentially laminated. It becomes. A print layer 24 is formed on the surface of the first layer 20, and a print layer 22 is also formed on the surface of the second layer 16 on the side of the adhesive layer 14.

The adhesive layer 14 is for giving an adhesive force to the label 10 and 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 used, for example, to seal the opening of the package, and is also to be cut or torn when the sealed portion is opened to make the package open. The resin layer 16 is formed by coating the surface of the release agent layer 18 with a resin made of a urethane resin or an EVA resin. The resin layer 16
Another example is a resin layer coated with a synthetic resin obtained by mixing a metal powder with a synthetic resin and formed so as to be cut or torn by applying a relatively weak force.

The release agent layer 18 is formed so that the resin layer 16 and the film layer 20 can be easily removed so that they cannot be re-attached. And is formed between the resin layer 16 and the surface layer 20.

The surface layer 20 is formed to prevent the resin layer 16 from being cut or torn, and is temporarily attached to the resin layer 16 via a release agent layer 18. Examples of the surface layer include paper, synthetic paper,
A film or an aluminum foil may be used. When the label is bent and attached to a sealed portion, the surface layer 20 does not peel off in an attempt to restore the original state against the adhesive force of the resin layer 16. A relatively flexible one is better.

The release sheet 12 is for protecting the adhesive layer 14 and includes a release paper made of, for example, paper or a synthetic resin sheet. A release agent such as silicon is applied to the surface of a base material such as paper. Release agent layer 12 coated and printed
a is formed.

In the label 10, the force required to separate the surface layer 20 from the resin layer 16 by the release agent layer 18 is represented by a, and the label when the adhesive layer 14 is adhered to the material to be adhered. Assuming that the adhesive force with the adhesive material is b and the force required to peel the release sheet 12 from the adhesive layer 14 is c,
It is configured such that the force required for peeling each portion satisfies the expression c <a <b.

First, the label 10 is peeled off from the release sheet 12, and is adhered by the adhesive layer 14 as a price tag, for example, as shown in FIG.

In order to open the opening of the package to which the label 10 including the surface layer 20 and the resin layer 16 is attached as described above, the attached label 10 is peeled off.
The seal must be opened. In this case, since the surface layer 20 is temporarily weakly attached to the resin layer 16 via the release agent layer 18, while the resin layer 16 is strongly adhered to the opening of the package with the adhesive layer 14, the label 10 is peeled off. Then, only the surface layer 20 can be peeled off, and the resin layer 16 remains adhered to the sealing portion together with the adhesive layer 14. Therefore, once the surface layer 20 is peeled off, the surface layer 20 cannot be re-adhered to the surface of the resin layer 16 again, and does not return to the original state. You can understand.

In order to completely open the opening of the package, the resin layer 1 remaining without being peeled off is removed.
6 must be cut, torn, or peeled from the opening.

When the surface layer 20 is peeled to open the sealed portion and the resin layer 16 is cut or torn at the same time, if the state of the resin layer 16 is checked in the same manner as described above, the opened state can be determined. It is.

In this example, the label 10 is used for a package of sweets, but it is also used as a part to be sealed such as a medicine package, an envelope, a bag, and a price tag indicating a price. It is natural to get.

Hereinafter, a method of manufacturing the label shown in FIG. 1 will be described based on a manufacturing apparatus. FIG. 2 and FIG.
FIG. 2 is an illustrative view showing one example of an apparatus for manufacturing a laminate used for the label sheet shown in FIG.

The laminate 30 is formed by laminating a release agent layer 18 and a resin layer 16 on the surface layer 20 in that order.

The apparatus 100 includes a holding roller 102 for holding the surface material 20a forming the band-shaped surface layer 20 in a roll shape. Surface material 2 held by holding roller 102
0a is one end of which is unraveled and the release agent applying device 1
04.

The release agent applying device 104, for example, applies a release agent 1 containing wax on the front surface or the back surface of the surface material 20a.
8a for printing and applying, two rollers 1
04a and 104b. The lower part of the roller 104a is immersed in the release agent 18a stored in the pan 104c. Therefore, by rotating the rollers 104a and 104b, the surface material 2 guided between them
A release agent 18a is printed and applied to the surface of Oa. In addition,
As the release agent applying 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 surface material 20a on which the release agent 18a is printed is applied to the dryer 106 including a heater, for example.
It is led to. In the dryer 106, the release agent 18a printed and applied to the surface material 20a is dried to form the release agent layer 18. The surface material 20a on which the release agent layer 18 is formed is guided to the winding device 108. The surface material 20a wound in a roll shape is loaded into another resin 16a laminating device 110 shown in FIG.

The laminating apparatus 110 includes two rollers 112 and 114. Roller 112 has pan 1 at its lower part.
16 is immersed in a resin 16a containing urethane resin or EVA resin. Therefore, by rotating the rollers 112 and 114, the surface of the release agent layer 18 of the surface material 20a guided between them causes the resin 16a
Is printed and applied. Then, the surface material 20a coated with the resin 16a is further guided to the dryer 120 and 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 to form the surface substrate 30 on which the resin layer 16 is formed. Then, the surface substrate 30 is used for the next printing apparatus 1.
Sent to 30. The printing device 130 is formed of a known printing machine such as an offset printing machine, and is provided on a transfer path of the surface substrate 30. Then, the printing layer 130 is formed on the surface of the resin layer 16 by printing the characters “opened”, for example. The surface substrate 30 on which the print layer 22 is formed in this manner is wound up and held by a winding roller 140 in a roll shape.

FIG. 4 is an illustrative view showing one example of an apparatus for further laminating the adhesive layer 14 and the release sheet 12 using the surface substrate 30 produced by the method shown in FIG.

The device 150 includes a coating device 152. The coating device 152 applies the adhesive 14a to the surface of the release sheet 12.
And a roller 156 provided opposite the main roller 154.
including. The lower portion of the main roller 154 is immersed in the adhesive 14 a stored in the pan 158, and the main roller 154 is disposed on the surface of the release agent layer 12 a of the release sheet 12 sandwiched between the main roller 154 and the roller 156. 1
At 54, the adhesive 14a is applied.

Then, the release sheet 12 on which the adhesive 14a is applied by printing is guided to a dryer 122 including, for example, a heater. In the dryer 122, the adhesive 14a printed and applied to the release sheet 12 is dried to form the adhesive layer 14. The release sheet 12 on which the adhesive layer 14 is formed is guided to the laminating device 160 for the surface substrate 30.

The surface base material laminating apparatus 160 includes the release sheet 1
6 is for laminating the surface base material 30 on the adhesive layer 14 of the laminate of the adhesive layer 6 and the adhesive layer 14, and includes a holding roller 162 for holding the surface base material 30 in a roll shape. One end of the surface base material 30 held in a roll is unraveled and guided between the rollers 164 and 166. At this time, the laminated body 32 on which the adhesive 14a is applied is guided between these rollers 164 and 166, and therefore, between these rollers 166 and 164, the surface base material 30 is peeled off. The sheet 12 and the adhesive layer 14
Are sandwiched. In this way, the surface substrate 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 surface substrate 30 on which the release sheet 12 is laminated with the adhesive layer 14 is led to an apparatus for producing a label. FIG. 5 is an illustrative view showing one example of an apparatus for manufacturing a label.

The device 170 includes a holding device 172 for loading a roll of the surface substrate 30 on which the release sheet 12 is laminated with the adhesive layer 14. The laminate composed of the surface substrate 30 and the laminate 32 drawn out from the holding device 172 is guided to the printing device 132.

The printing device 132 is a printing device
In the same manner as described above, a known printing press such as an offset printing press is used. The printing device 132 forms a print layer 24 on which an image such as “product name” is printed on the surface of the surface layer 20.

The laminate on which the printing layer 24 is formed is guided to the die-cutting machine 174. The die-cutting machine 174 includes a so-called die cutter having a cutting blade, and the surface cutter 20, the release agent layer 18, the resin layer 16, and the adhesive layer 14 are cut into appropriately shaped cuts by the die cutter. In addition, the die-cutting machine 174 may use a roll with a cutting blade, a so-called die roll.

The surface base material 30 including the cut surface layer 20 and the like is divided into unnecessary portions and labels 10 (required portions) by rollers 176a and 176b, and the unnecessary portions are rolled by a deglazing roller 180. The label 10 (required portion) is wound in a roll shape by a winding roller 178 while being temporarily attached to the peeling sheet 12.

It should be noted that a cut forming machine may be provided in place of the die removing machine 174 and the winding roller 178. The notch forming machine includes a cutting blade. This cutting blade is for separating the labels 10 by making cuts in the surface layer 20, the release agent layer 18, the resin layer 16 and the adhesive layer 14.

The following is a more specific description. (1) A coated paper having a thickness of about 70 μ is used as the first layer,
Wax was applied and dried as a release agent for forming a release agent layer. Next, a urethane resin or an EVA resin for forming the second layer is coated on the wax so as to have a thickness of about 5 to 50 μm. At this time, urethane resin or EVA
The force (a) required to remove the resin from the wax surface is 10
It was 0 g. Using the multilayer product of the coated paper and the second layer prepared in this manner as a base material, a release paper was bonded to a release sheet coated with an adhesive to a dry coating thickness of 5 to 50 μm. At this time, the force (c) required to peel the release paper from the adhesive was 10 g. The pressure-sensitive adhesive paper thus formed was labeled and attached to an adherend (paper box, plastic, glass bottle, etc.). At this time, the adhesive force (b) to the adherend was 1500 g. When the attached label was forcibly peeled off from the adherend, the first layer of paper was peeled off first.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a label manufactured by a manufacturing method according to the present invention.

FIG. 2 is an illustrative view showing one example of an apparatus for manufacturing a laminate used for the label shown in FIG. 1;

FIG. 3 is an illustrative view showing one example of an apparatus for manufacturing a laminate used for the label shown in FIG. 1;

FIG. 4 is a diagram showing a further example of an adhesive layer 14 and a release sheet 1 using the surface substrate 30 manufactured by the method shown in FIG.
2 is an illustrative view showing one example of an apparatus for laminating 2; FIG.

FIG. 5 is an illustrative view showing one example of an apparatus for manufacturing a label;

FIG. 6 is a perspective view showing a method of using a label manufactured according to the present invention.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Label 12 Release sheet 14 Adhesive layer 16 Resin layer 18 Release agent layer 18a Release agent 20 Surface layer 20a Surface material 30 Surface base material 32 Laminated body 102 Holding roller 104 Release agent application device 104a, 104b Roller 104c Pan 108 Winding device 110 Laminating device 120 Dryer 122 Drying device 130,132 Printing device 140 Take-up roller 150 Device 152 Coating device 154 Main roller 156 Roller 158 Pan 160 Surface base material laminating device 162 Holding roller 164,166 Roller 168 Winding roller

Claims (9)

(57) [Claims] 1. A force required for peeling the first layer from the second layer by the release agent layer is a, an adhesive force of the adhesive layer with the material to be adhered is b, and the release sheet is bonded. A method for producing a label for preventing replacement, which satisfies the following formula: c <a <b, where c is the force required to peel from the agent layer, and (a) forming an adhesive layer on a release sheet; (B) laminating a release agent layer containing wax on one main surface of the first layer; and (c) forming a second layer on the surface of the release agent layer of the first layer. Coating a resin containing EVA to form a second layer; (d) laminating an adhesive layer surface of the release sheet and a surface of a second layer laminated on the first layer; Producing a label for preventing re-sticking. 2. The method according to claim 1, wherein the step (b) includes forming a print layer on at least one main surface of the first layer.
A method for producing the label for preventing re-sticking according to claim 1. 3. The method according to claim 1, wherein the step (c) includes forming a printing layer on at least one main surface of the second layer.
A method for producing the label for preventing re-sticking according to claim 1 or 2. 4. A force required for peeling the first layer from the second layer with the release agent layer is a, an adhesive force of the adhesive layer with the adherend is b, and the release sheet is bonded. A method for producing a label for preventing replacement, which satisfies the following formula: c <a <b, where c is the force required to peel from the agent layer, and (a) forming an adhesive layer on a release sheet; (B) laminating a release agent layer containing wax on one main surface of the first layer; and (c) forming a second layer on the surface of the release agent layer of the first layer. Forming a second layer by coating a resin containing a urethane resin; and (d) superimposing the surface of the adhesive layer of the release sheet on the surface of the second layer laminated on the first layer. And a step of laminating. 5. The method according to claim 1, wherein the step (b) includes forming a print layer on at least one main surface of the first layer.
A method for producing a label for preventing sticking according to claim 4. 6. The method according to claim 1, wherein the step (c) includes forming a printing layer on at least one main surface of the second layer.
A method for producing the label for preventing re-sticking according to claim 4 or 5. 7. A force required for peeling the first layer from the second layer by the release agent layer is a, an adhesive force of the adhesive layer with the adherend is b, and the release sheet is bonded. A method for producing a label for preventing replacement, which satisfies the following formula: c <a <b, where c is the force required to peel from the agent layer, and (a) forming an adhesive layer on a release sheet; (B) laminating a release agent layer containing wax on one main surface of the first layer; and (c) forming a second layer on the surface of the release agent layer of the first layer. Forming a second layer by coating a synthetic resin mixed with metal powder; and (d) forming an adhesive layer surface of the release sheet and a surface of a second layer laminated on the first layer. And a method of producing a label for preventing sticking. 8. The method according to claim 1, wherein the step (b) includes forming a printing layer on at least one main surface of the first layer.
A method for producing the label for preventing sticking according to claim 7. 9. The method according to claim 9, wherein the step (c) includes forming a printing layer on at least one main surface of the second layer.
A method for producing the label for preventing re-sticking according to claim 7 or 8.