JPS61186982A - Making of re-use prevention type label - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for producing reusable labels, and in particular, to a reusable label suitable for use in, for example, price tags or labels attached to the openings of containers. Concerning the manufacturing method of prevention type labels.

(Prior art) Conventionally, labels used as price tags to prevent repositioning are made by making appropriate perforations or cuts in the surface base material.
For example, if you try to remove it at a store and replace it with another price tag, it will separate and break at the perforations and cuts, and
There are known devices that allow you to tell at a glance that an attempt has been made to peel them off.

On the other hand, depending on the material of the opening of the package and its surface treatment method, the adhesive paper that is pasted to the opening of the container to indicate its unopened status may be used for products that are worn out on display shelves at stores. You can pick it up and peel it off on the spot, and you can reapply it after a foreign object has gotten into the package without knowing that it was removed, so you can see the sticker from the outside. You can't tell if the package has been opened or not. Therefore, there is a risk that the contents of the package may be tampered with. For example, poisonous substances may be mixed into candy packages.

Therefore, recently, adhesive labels that can be seen to be peeled off after being pasted have come on the market, and are disclosed in Japanese Utility Model Application Publication No. 59-1077.

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 portion of the deposited film that was not directly deposited on the film substrate by the release agent coating remains attached to the opening. . Furthermore, if the opening is opened, the remaining vapor deposited layer stuck there will be cut or torn, thereby indicating whether the opening has been opened.

(Problems to be Solved by the Invention) However, in such adhesive labels, metal is vapor-deposited on the film base material and the release agent coating layer, so the film as the material to be vapor-deposited is limited to polyester, etc. Furthermore, in order to complete the vapor deposition, it is necessary to satisfy various other conditions, which has the disadvantage of increasing costs.

Therefore, the main object of the present invention is to provide a method for manufacturing a label relatively easily, which allows the label to be peeled off after being pasted, and does not require a vapor deposition process.

(Means for Solving the Problems) The present invention includes (a') laminating an adhesive layer on one main surface of the first layer; (b) between the first layer and the adhesive layer; (c) laminating a release agent layer by removing a portion of the adhesive layer so that the first layer and the adhesive layer are in direct contact; and (c) making the adhesive layer adhere to the first layer; This method of manufacturing a reusable label includes the step of laminating a second layer in a state where it is adhered to the first layer by an adhesive layer and separated in a region where a release agent layer is not formed.

(Function) The first layer and the second layer are bonded by forming a coated adhesive layer between them, and the first layer is partially removed so that the first layer and the adhesive layer are in direct contact with each other. Since the release layer is formed between the first layer and the adhesive layer, the first layer and the adhesive layer are temporarily attached in a releasable state at the region where the release layer is formed.

(Effects of the Invention) According to the present invention, since the second layer is configured to be laminated on the first layer by the adhesive force of the adhesive layer, it can be produced without vapor deposition as in the conventional method. . Moreover,
In the part where the release agent layer is partially removed, the second layer is torn off from the remaining part and peeled off together with the first layer, with the second layer and the first layer adhering to each other. The remaining portion can be used to draw various lines, for example, characters such as ``opened''. Furthermore, if the second layer is cut or torn, it will not return to its original state.
It can be seen that the second layer has separated.

Therefore, it can be seen at a glance that the attached label has been peeled off, and a label that does not require the conventional vapor deposition process can be obtained.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

(Example) FIG. 1 is a sectional view showing an example of a label manufactured by the manufacturing method according to the present invention. This label IO is temporarily attached on a release sheet 12, and an adhesive layer 14. Second layer 22, adhesive N16. The release agent layer 18 and the first layer 20 are sequentially laminated. A printed layer 24 is formed on the surface of the first layer 20.

The adhesive layer 14 is for providing adhesive force to the label IO, is made of an adhesive such as a pressure-sensitive adhesive, and is formed between the release sheet 12 and the second layer 22.

The second layer 22 is formed of aluminum foil or a resin film formed by coating a synthetic resin containing silver powder, gold powder, carbon black, or other pigments. This second layer 22 is for sealing, for example, the opening part of the pan cage, and is also intended to be cut or torn when the seal part is opened, resulting in an unsealed state.

Adhesive layer 16 that adheres the second layer 22 and the first N20
is formed by coating the surface of the release agent layer 18 with a two-component reactive polymer resin such as urethane resin, other EVA resin, PVA, vinyl acetate, and acrylic resin. In addition,
Other examples of the adhesive layer 16 include an adhesive layer coated with a thermosetting adhesive such as polyester or polyurethane.

The release agent layer 18 is formed so that the adhesive layer 16 and the first layer 20 can be easily separated in a state where they cannot be reattached, and is made of, for example, silicone resin, fluororesin,
It is formed by applying a release agent such as wax between the adhesive layer 16 and the first layer 1ii2Q. This release agent layer 18
is formed on a portion of the surface of the first N20, and for example, a line indicating "opened" is formed in the portion where the release agent layer 18 has been removed.

The first layer 20 is formed to prevent the adhesive layer 16 from being cut or torn, and is temporarily attached to the adhesive layer 16 via the release agent layer 18.
In the portion where is formed, it is in close contact with the adhesive N16. Examples of the first layer include polyester or nylon film, which is relatively stiff and does not shrink easily due to heat, or paper or synthetic paper. It is preferable to use a relatively flexible material that does not peel off when the first layer 20 attempts to restore its original state against the adhesive force of the adhesive layer 16 when it is attached to the sealing part.

The release sheet 12 is for protecting the adhesive layer 14, and includes a release paper made of, for example, a paper 2 synthetic resin sheet, and a release agent such as silicone is coated and printed on the surface of a base material such as paper. A release agent layer 12a is formed.

As shown in FIG. 2, in this label 10, the force required to separate the first layer 20 from the adhesive layer 16 by the release agent layer 18 is a, and the adhesive layer 14 is attached to the adhered material. The adhesion force with the adhered material when bonded to the second layer 2 is b, and the second layer 2
If the force required to destroy the release sheet 12 is C, and the force required to peel the release sheet 12 from the adhesive layer 14 is d, then the force required to peel each part is expressed by the formula d<a<c<b
Configure to meet the following.

First, the label 10 is peeled off from the release sheet 12, and is pasted by the adhesive layer 14, for example, as a price tag or onto the opening of a candy package, as shown in FIG.

In order to open the opening of the package to which the label 10 made of the first layer 20, adhesive layer 16, etc. is attached, the attached label 10 must be peeled off and the sealed portion must be opened. In this case, the first layer 20
is weakly temporarily attached to the adhesive layer 16 via the release agent layer 1B, while the second layer 22 is attached to the adhesive layer 1 at the opening of the package.
As shown in FIG. 2, when trying to peel off the label 10, only the first layer 20 can be peeled off, while the adhesive layer 16 and the second layer The layer 22 remains attached to the sealing portion together with the adhesive layer 14. As shown in FIG. 2, since the second layer 22 is bonded with the adhesive layer 16 in the part where the release agent layer 18 is missing, the second eyebrow 22, which is relatively easy to tear, The release agent [18] is broken at the boundary between the formed portion and the non-formed portion, and is peeled off from the adhesive layer 14 together with the first layer 20.

Therefore, once the first Fii 20 is peeled off, the first layer 20 cannot be reattached to the surface of the adhesive layer 16 and will not return to its original state, so it is not in an unsealed state. This is obvious at a glance.

In order to completely open the opening of the package, the remaining adhesive layer 16 must be cut, torn, or peeled from the opening.

Note that even if the adhesive layer 16 is cut or torn at the same time as the first M2O is peeled off to open the sealed part, the unsealed state can be determined by looking at the state of the adhesive layer 16 in the same way as above. .

In this example, the label 10 was used for a package of sweets, but it can also be used for a medicine package, parts to be sealed such as two envelopes, and a price tag that displays a price. It is.

An embodiment of the present invention will be described below based on an example of a label manufacturing apparatus according to the present invention.

FIGS. 3 and 4 are illustrative views showing an example of an apparatus for manufacturing a base material used in an embodiment of the present invention.

This base material 30 is obtained by laminating a release agent layer 18 and an adhesive layer 16 on the first layer 20 in that order.

The device 100 includes a holding roller 102 for holding the film material 20a forming the strip-shaped first layer 20 in a roll shape.
including. Film material 20 held by holding roller 102
When one end of a is unwound, the release agent applicator 10
Guided by 4.

The release agent application device 104 is for printing and applying a release agent 18a such as silicone resin or fluororesin to the front or back surface of the film material 20a, and includes two rollers 104a and 104b. Roller 104a
is immersed in the release agent 18a stored in the pan 104G.

Therefore, by rotating rollers 104a and 104b, film material 20 guided between them
A release agent 18a is printed and coated on the surface of a. Note that the release agent coating device 104 is a gravure roll coater.
, a reverse roll coater, etc. may be used, or a known printing machine such as an offset printing machine or a screen printing machine may be used.

Then, a film material 20 is printed and coated with a release agent 18a.
a is led to a dryer 106 that includes a heater, for example. In the dryer 106, the release agent 18a printed and coated on the film material 20a is dried and formed as the release agent layer 18. The film material 20a on which the release agent layer 18 has been formed in this way is guided to the winding device 10B.

The rolled film material 20a is loaded into another second layer 22 laminating device 110 shown in FIG.

The laminating device 110 includes a device for negotiating a stacked body in which the film 16 is wound, and the aluminum foil 22a forming the second layer 22 drawn out from this stacked body is
Resin or adhesive 16 forming an adhesive layer 16 with two rollers
After the resin or adhesive 16a is applied to the surface of the aluminum foil 22a as the two rollers rotate, the resin or adhesive 16a is introduced between the two rollers 112 and 114, and then separately guided. An aluminum foil 22a is overlaid and adhered to the surface of the first N20 release agent layer 18 using the adhesive 16a on its surface. Then, it is guided to the bonding device 119. As an adhesive device, adhesive 1
As 6a, when using adhesives containing water-soluble resins such as PVA, vinyl acetate, and acrylic, or solvent-based adhesives made of salt vinyl acetate, urethane, acrylic, etc., use a "dryer" and When using a PVA-based true melt adhesive, a "cooler" is used.

The surface base material 30 on which the printed layer 22 is formed in this way is wound up into a roll shape by a winding roller 140 and held.

FIG. 5 is an illustrative view showing an example of an apparatus for further laminating the adhesive layer 14 and the release sheet 12 using the base material 30 shown in FIG. 3.

Apparatus 150 includes adhesive applicator 152 .

The adhesive coating device 152 is for coating the adhesive 14a on the surface of the release sheet 12, and is connected to the main roller 1.
54 and a roller 156 provided opposite to the main roller 154. The lower part of the main roller 154 is immersed in the adhesive 14a stored in the pan 158, and the main roller 154 is immersed in the release agent Jii 12a of the release sheet 12 sandwiched between the main roller 154 and the roller 156. Adhesive 14a is applied by roller 154.

Then, a release sheet 12 is coated with an adhesive 14a.
is led to a drying ta 122 that includes a heater, for example.

In the dryer 122, the adhesive 14a printed and coated on the release sheet 12 is dried and formed as the adhesive layer 14. Release sheet 12 with adhesive layer 14 formed in this way
is guided to the laminating device 160 for the base material 30.

The base material laminating device 160 includes a release sheet 16 and an adhesive layer 14.
It is for laminating the base material 30 on the adhesive layer 14 of the laminate 32, and includes a holding roller 162 for holding the base material 30 in a roll shape. One end of the base material 30 held in a roll is unwound and guided between rollers 164 and 166. At this time, these rollers 16
A laminate 32 having an adhesive 14a applied thereon is guided between the rollers 166 and 166, so that between the rollers 166 and 164, the base material 30 and the release sheet 12 are coated with an adhesive layer. They are overlapped with 14 in between. In this way, the base material 30 on which the laminate 32 of the release sheet 12 and the adhesive Ji 14 is superimposed is guided to the take-up roller 168.

Next, the base material 30 on which the release sheet 12 is laminated with the adhesive layer 14 is introduced into an apparatus for manufacturing labels. FIG. 6 is an illustrative view showing an example of an apparatus for manufacturing labels.

Such apparatus 170 includes a holding device 172 into which is loaded a roll of substrate 30 on which release sheet 12 is laminated with adhesive layer 14 . The laminate consisting of the base material 30 and the laminate 32 pulled out from the holding device 172 is transferred to the printing device 13.
2.

Further, the printing device 132 is composed of a known printing machine such as an off-cent printing machine, for example. And this printing device 13
2, a printed layer 24 on which lines such as "product name" are printed is formed on the surface of the first ji 20.

The laminate on which the printed layer 24 has been formed in this manner is guided to a die cutting machine 174. The die cutter 131174 includes a so-called die cutter having cutting edges, by which the first layer 20. Appropriately shaped cuts are made in release agent layer 18, second layer 22, and adhesive layer 14.

Note that the die cutting machine 174 may be one using a roll with a cutting edge, a so-called guiroll.

The substrate 30, including the scored first layer 20, etc., is separated from the unnecessary portion by rollers 176a and 176b and the label 10 (
The unnecessary portion is wound up into a roll by a scrap removal roller 180, and the label 10 is separated into
The (required portion) is wound up into a roll by a winding roller 178 while being temporarily attached to the release sheet 12.

Note that a score forming machine may be provided in place of the die cutting machine 174 and the winding roller 178. This cut forming machine is
Including cutting edge. This cutting edge is the first Jii20. Release agent layer 18. Adhesive layer 16. This is for making cuts in the second layer 22 and adhesive layer 14 to separate each label 10.

Here, more specifically, it is as follows.

(1) Use a polyester film with a thickness of about 50 g as the first layer, use silicone resin manufactured by Toshi Co., Ltd. as the release agent to form the release agent layer, leave some parts uncoated, and apply the curing agent. After coating with the film, a release agent layer is partially formed by baking with a dryer. Next, a urethane resin forming an adhesive layer is coated on the first layer and the release agent layer to a thickness of about 5 to 50 microns. Furthermore, aluminum foil was laminated on the surface of the molten urethane resin, and the urethane resin was dried and solidified. At this time, the force required to peel off the urethane resin from the release agent layer was 50 g. On the other hand, Shikoku Paper's release paper was coated with Toyo Ink's acrylic adhesive (BPS-5).
127) to a dry film thickness of 5 to 50 μm to produce a release sheet. After that, it was laminated with the multilayer product. At this time, the force required to break the second layer (
c) was 100 g, and the force (d) required to peel off the release paper from the adhesive was 10 g.

The thus constructed pressure-sensitive adhesive paper was made into a label and pasted on a material to be pasted (paper surface, plastic, glass bottle, etc.).

At this time, the adhesive force (b) to the adhered material was 1,500 g. When I tried to forcibly remove the attached label from the material to which it was attached, the first layer of film was peeled off from the adhesive layer along with the aluminum foil in the area where the release agent layer was not formed.

Similar results were also obtained with labels manufactured in the same manner using coated paper as the first layer and coating the surface of the coated paper with the EVA resin shown in Table 1 below.

(The following is a blank space) (2) A nylon film with a thickness of about 70 g was used as the first layer, and wax was applied as a release agent to form a release agent layer and dried. Next, a polyester adhesive or the like that forms an adhesive layer is coated on the wax to a thickness of approximately 5 to 50 microns. Furthermore, aluminum foil was laminated on the surface of this molten adhesive, and the polyester adhesive was dried and solidified. At this time, the force (a) required to peel off the adhesive from the wax surface was 50 g.

A multi-layered product of the nylon film and the second layer created in this way, and a release paper with an adhesive coated to a dry film thickness of 5 to 50 μm.
It was laminated with a release sheet coated with the following properties. At this time, the force (d) required to peel off the release paper from the adhesive
) was Log. The thus constructed pressure-sensitive adhesive paper was made into a label and pasted on a material to be pasted (paper surface, plastic, glass bottle, etc.). At this time, the adhesive strength to the adhered material (
b) was 1,500g. When I tried to forcibly peel off the attached label from the material to which it was attached, the first layer of film was peeled off along with the portion of the aluminum foil where the release agent layer was not formed.

FIG. 7 is an illustrative view showing an apparatus that replaces the base material manufacturing apparatus shown in FIG. 4.

In this device, unlike the device shown in Fig. 4,
Laminating device 11 that stacks and laminates aluminum foil 16a
0, a coating device 116' coats the resin forming the adhesive layer 16, and a synthetic resin mixed with gold powder or silver powder instead of aluminum foil is applied to the release agent layer 18 on the surface of the first layer 20 and the surface of the adhesive layer 16. Above, a coating layering device 110' is provided.

The coating device 116' includes two rollers 112' and 11
4' included. The lower part of the roller 112' is connected to the pan 116.
Resin 16 such as urethane resin or EVA resin stored in '
It is immersed in a. Therefore, by rotating the rollers 112' and 114', the resin 16a is applied to the surface of the release agent layer 18 of the film 20 guided between them.
is printed and applied. The film 20 coated with the resin 16a is further led to a dryer 120, where it is dried and solidified. As a result, the surface of the release agent layer 18 on the surface of the first layer 20 is coated with the resin 16a to form the adhesive layer 16, and then sent to the next second layer laminating device 110'. The laminating device 110' is comprised of a known printing machine such as an offset printing machine or a coating device, and is provided on the transport path of the substrate 30. Then, the layering device 110' coats the surface of the adhesive layer 16 with a resin mixed with gold powder or silver powder, thereby forming the second layer 22.

FIG. 9 is a label manufactured according to another example.

In this label, an appropriate image layer 23 is printed on the surface of the aluminum foil or resin film forming the second 75i22, and when the first layer 20 is separated, the image layer 23
It is formed so that it can be seen. This drawing layer 23 is the second
If the material forming the layer 22 is aluminum foil, it is formed in advance on the surface of the second layer 22 and then laminated. Also,
When the second layer 22 is formed by coating a resin, printing may be performed after the resin film is formed.

Note that the image layer 23 may be colored and formed by applying a paint or the like using an appropriate coating device.

As the synthetic resin that forms the resin film, we select a synthetic resin in which metal powder is mixed with a synthetic resin, which can be cut or torn by applying a relatively weak force, and coated with a synthetic resin. Two layers 22 may be formed.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of a label manufactured by the manufacturing method according to the present invention.・Figure 2 is
FIG. 1 is a sectional view showing how to use the embodiment shown in FIG. 1; FIGS. 3 and 4 are illustrative views showing an example of an apparatus for manufacturing a base material used in an embodiment of the present invention. 5th T! ! J is an illustrative view showing an example of an apparatus for further laminating an adhesive layer 14 and a release sheet 12 using the base material 30 shown in FIG. 3. FIG. 6 is an illustrative view showing an example of an apparatus for manufacturing labels. FIG. 7 shows the first layer 20 and release agent layer 18 shown in FIG.
FIG. 2 is an illustrative view showing an example of an apparatus for manufacturing a base material 30 by laminating a second layer 22 using a multilayer body. FIG. 8 is a perspective view showing how to use the label according to the invention. In the figure, 10 is a label, 12 is a release sheet, 14 is an adhesive layer, 16 is an adhesive layer, 18 is a release agent layer, 18a is a release agent, 20 is a first layer, 20a is a film material, 22 is a second layer layer, 23 is an image layer, 24 is a printing layer, 30 is a base material, 3
2 is a laminate, 102 is a holding roller, 104 is a release agent coating device, and 104a. 104b is a roller, 104c is a pan, 108 is a winding device, iio, ito' are laminating devices, 116.116'
is a coating device, 120 is a dryer, 122 is a drying device,
130.132 is a printing device, 140 is a winding roller,
150 is a device, 152 is an adhesive applicator, 154 is a main roller, 156 is a roller, 158 is a pan, 160 is a base material laminating device, 162 is a holding roller, 164, 166 is a roller, and 168 is a winding roller. Patent applicant Omatsu Chemical Industry Co., Ltd. Agent Patent attorney Oka 1) Kei Zen (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 6 170 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] 1 (a) laminating an adhesive layer on one main surface of the first layer; (b) laminating a first layer and an adhesive layer between the first layer and the adhesive layer; (c) laminating a release agent layer by removing a part of the layer so that the first layer is in direct contact with the first layer; (c) bonding the first layer with the adhesive layer; , the first by the adhesive layer
laminating a second layer in an adhered state and separated from the second layer. 2. The method for producing a reuse-prevention label according to claim 1, wherein step (a) includes the step of coating a synthetic resin to form an adhesive layer. 3. The method for producing a reusable label according to claim 2, wherein step (a) includes the step of coating with urethane resin to form an adhesive layer. 4. The method for producing a reusable label according to claim 2, wherein step (a) includes a step of coating an EVA resin to form an adhesive layer. 5. The step (a) includes the step of coating an adhesive to form an adhesive layer.
Manufacturing method for reuse-preventing labels as described in Section 1. 6. The method for producing a reusable label according to claim 5, wherein step (a) includes a step of coating with a urethane adhesive to form an adhesive layer. 7. The method for producing a reusable label according to claim 5, wherein step (a) includes the step of coating a polyester adhesive to form an adhesive layer. 8. The method for producing a reusable label according to any one of claims 1 to 7, wherein step (c) includes forming a printing layer on one main surface of the second layer. . 9. The method for manufacturing a reusable label according to any one of claims 1 to 8, wherein step (c) includes the step of overlapping aluminum foil to form a second layer. 10 The step (c) includes coating a resin containing a colorant to form a second layer.
A method for manufacturing a reuse-preventing label according to any one of claims 1 to 8. 11. The method for producing a reusable label according to any one of claims 1 to 10, wherein step (b) includes a step of coating a silicone resin to form a release agent layer. 12. The method for producing a reusable label according to any one of claims 1 to 11, wherein step (b) includes a step of forming a streak with a release agent. 13. The method for producing a reusable label according to any one of claims 1 to 12, wherein step (a) includes the step of laminating an adhesive layer on a synthetic resin film. 14 The step (a) includes the step of laminating an adhesive layer on the polyester film,
A method for producing a reuse-preventing label as described in Section 3. 15. The method for manufacturing a reusable label according to any one of claims 1 to 14, wherein step (a) includes forming a printing layer on the main surface of the first layer. .