JPH0664413B2 - Reusable label - Google Patents

Description

TECHNICAL FIELD The present invention relates to a reusable label, and more particularly to a reusable label used for, for example, a label or a label attached to the opening of a container.

(Prior Art) Conventionally, a replacement prevention label used as a placard or the like has an appropriate perforation or cut line formed on the surface base material, and is peeled off at a store or the like to be replaced with another price tag. It is known that at this time, it is possible to determine at a glance that the tape is about to be separated and broken at perforations or cuts and is about to be peeled off.

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 matter into the package so that it cannot be seen that it was peeled off. Just don't know if the package has already been 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 shows that the adhesive has been peeled off 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 adhered to the opening portion is cut or torn, whereby the opened state can be known.

(Problems to be Solved by the Invention) However, in such an adhesive label, since the metal is vapor-deposited on the film base material and the release agent coating layer, the film as the material to be vapor-deposited is limited to polyester and the like. In addition, in order to complete the vapor deposition, it is necessary to satisfy various other conditions, which has a disadvantage of increasing the cost.

Therefore, a main object of the present invention is to provide a reuse-prohibited label which is found to be peeled off after application and does not require a vapor deposition step.

(Means for Solving Problems) The present invention relates to a first layer, a release agent layer formed on a part of one surface of the first layer, and one surface of the first layer. The other part and an adhesive layer formed on the surface of the release agent layer, and a second layer adhered to the surface of the adhesive layer, and the second layer is formed at a portion where the release agent layer is not formed. Is a reusable label, which is formed so as to be separated while being adhered to the first layer by the adhesive layer.

(Operation) When the first layer is peeled off, a part of the second layer is separated from the first layer in an adhered state, and the first layer and the other part retain their initial state.

The release agent layer facilitates the release of the second layer and the first layer.

The first layer prevents the second layer from breaking or tearing.

(Effect of the Invention) According to the present invention, since the second layer is laminated on the first layer by the adhesive force of the adhesive layer, the second layer can be formed without vapor deposition as in the conventional case. Moreover, in the part where the release agent layer is partially cut off, the second layer is torn with the remaining part in a state where the second layer and the first layer are adhered together with the first layer. Various image lines, for example, characters such as "opened" can be displayed on the remaining portion after being peeled off. Further, when the second layer is cut or torn, it does not return to the original state again, which means that the second layer is separated. Therefore, it can be seen at a glance that the adhered label has been peeled off, and a reusable label which does not require the vapor deposition step which has been conventionally required can be obtained.

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.

(Embodiment) FIG. 1 is a sectional view showing an embodiment of the present invention. The label 10 of this embodiment is temporarily adhered to the release sheet 12, and the adhesive layer 14, the second layer 22, the adhesive layer 16, the release layer 18 and the first layer 20 are sequentially laminated. Become.
The print layer 24 is formed on the surface of the first layer 20.

The adhesive layer 14 is for giving an adhesive force to the label 10, 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 synthetic resin containing silver powder, gold powder or carbon black, other pigments, and a resin film formed by coating. The second layer 22 is, for example, for sealing the opening portion of the package, and when the sealing portion is opened, the second layer 22 is cut or torn to obtain an opened state.

Adhesive layer 16 for adhering the second layer 22 and the first layer 20
Is formed by coating the surface of the release agent layer 18 with a two-station reactive polymer resin such as urethane resin, other EVA resin, PVA, vinyl chloride, acryl or the like. 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 as to facilitate the release of the adhesive layer 16 and the first layer 20 into a state in which they cannot be re-adhered. For example, a silicone resin, a fluororesin,
It is formed by applying a release agent such as wax and is formed between the adhesive layer 16 and the first layer 20. This release agent layer 18 is
It is formed on a part of the surface of the first layer 20, and is, for example, "opened" in the part where the release agent layer 18 is cut off.
And the like.

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, and the release agent layer 18 is The portion not formed is in close contact with the adhesive layer 16. As an example of the first layer, for example, a material such as polyester or nylon film, which is relatively elastic and less likely to shrink due to heat, or paper or synthetic paper can be used. It is preferable that the first layer 20 is relatively flexible so that it does not peel off when it is attached to the sealing portion against the adhesive force of the adhesive layer 16 in an attempt to restore the first layer 20 to the original state.

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

In this label 10, as shown in FIG. 2, 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 the adherend. The adhesive force with the adherend when bonded to the second layer is defined as b
If the force required to destroy 2 is c and the force required to peel the release sheet 12 from the adhesive layer 14 is d, the force required to peel each part is expressed by the formula d <a <c <b.
Configure to meet.

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

In order to open the opening portion of the package to which the label 10 including the first layer 20 and the adhesive layer 16 is attached in this manner, the attached label 10 must be peeled off and the sealing 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 18, while the second layer 22 is applied to the release agent layer 1 at the opening of the package.
As shown in FIG. 2, when the label 10 is peeled off, only the first layer 20 can be peeled off because it is strongly adhered by the adhesive layer 16 and the second adhesive layer 16 as shown in FIG. Layer 22 remains attached to the sealing portion along with adhesive layer 14. Then, as shown in FIG. 2, since the second layer 22 is adhered by the adhesive layer 16 at the portion where the release agent layer 18 is lacking, the second layer 22 which is relatively easy to tear, The peeling agent layer 18 is broken at the boundary between the portion where the peeling agent layer 18 is formed and the portion where the peeling agent layer 18 is not formed, and peeled from the adhesive layer 14 together with the first layer 20. Therefore, once the first layer 20 is peeled off, the first layer 20 cannot be attached again to the surface of the adhesive layer 16, and the original state cannot be restored. It is obvious at a glance.

Then, in order to open the opening portion of the complete package, the adhesive layer 16 remaining without being peeled off must be cut or torn or peeled from the opening portion.

Even if the adhesive layer 16 is cut or torn at the same time when the first layer 20 is peeled off in order to open the sealed portion, the opened state can be known by looking at the adhesive layer 16 in the same manner as above. is there.

In this example, the label 10 is used for the package of sweets, but it can be used for other parts such as medicine packages, envelopes, and bags to be sealed, and as price tags indicating prices. Of course.

FIG. 3 and FIG. 4 are schematic views showing an example of an apparatus for producing a base material used in the examples of the present invention.

The base material 30 is formed by laminating the release agent layer 18 and the 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
a is a release agent application device 10 in which one end thereof is unraveled.
Guided to 4.

The release agent applying device 104 is for applying a release agent 18a such as a silicone resin or a fluororesin to the front surface or the back surface of the film material 20a by printing, and includes two rollers 104a and 104b. Roller 104a
Has its lower portion immersed in the release agent 18a stored in the pan 104c. Therefore, rollers 104a and 10
By rotating 4b, the release agent 18a is applied by printing onto the surface of the film material 20a guided between them. As the release agent coating device 104, a gravure roll coater, a reverse roll coater, or the like may be used, or a known printing machine such as an offset printing machine or a screen printing machine may be used.

Then, the film material 20 on which the release agent 18a is applied by printing.
The a is guided to the dryer 106 including a heater, for example. In the dryer 106, the release agent 18a printed and applied to the film material 20a is dried to form the release agent layer 18. The film material 20 a on which the release agent layer 18 is formed is guided to the winding device 108.

The film material 20a wound in a roll shape is loaded in another laminating apparatus 110 for the second layer 22 shown in FIG.

The laminating device 110 includes a device for loading a wound body formed by winding the aluminum foil 22a forming the second layer 22, and the aluminum foil 22 pulled out from the wound body.
a is guided to a coating device 116 including two rollers and a pan that stores the resin or adhesive 16a that forms the adhesive layer 16, and applies the resin or adhesive 16a to the surface of the aluminum foil 22a as the two rollers rotate. After that, the aluminum foil 22a is superposed and adhered to the surface of the release agent layer 18 of the first layer 20 which is guided between the two rollers 112 and 114 and separately guided by the surface of the adhesive 16a. . Then, it is guided to the bonding device 119. 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 16a,
If a "dryer" is used and a rubber-based or EVA-based hot melt adhesive is used, a "cooler" is used.

The base material 30 thus formed is wound and held in a roll shape by the winding roller 140.

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.

The device 150 includes an adhesive application device 152.

The adhesive application device 152 is for applying the adhesive 14 a to the surface of the release sheet 12, and includes the main roller 1
54 and a roller 156 provided to face the main roller 154. The lower portion of the main roller 154 is dipped in the adhesive 14a stored in the pan 158, and the main roller is placed on the surface of the release agent layer 12a of the release sheet 12 sandwiched between the main roller 154 and the roller 156. At 154, adhesive 14a is applied.

Then, the release sheet 12 on which the adhesive 14a is applied by printing
Is led to dryer 122, which includes, for example, a heater. In the dryer 122, the adhesive 14 a printed and applied to the release sheet 12 is dried to form the adhesive layer 14.
Thus, the adhesive layer 14 is formed and the release sheet 12 is formed.
Is guided to the laminating device 160 for the base material 30.

The base material laminating apparatus 160 includes a release sheet 16 and an adhesive layer 14.
And a holding roller 162 for holding the base material 30 in a roll shape on the adhesive layer 14 of the laminate 32. The base material 30 held in a roll shape is untied at one end thereof and guided between the rollers 164 and 166. At this time, these rollers 16
4 and 166, the laminated body 32 having the adhesive 14a applied thereon is guided between the rollers 4 and 166. Therefore, between the rollers 166 and 164, the base material 30 and the release sheet 12 have an adhesive layer. 14 are sandwiched and overlapped. In this way, the base material 30 on which the laminated body 32 of the release sheet 12 and the adhesive layer 14 is superposed is guided to the winding roller 168.

Next, the base material 30 on which the release sheet 12 is laminated with the adhesive layer 14 is guided to an apparatus for manufacturing a label. FIG. 6 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 base material 30 in which the release sheet 12 is laminated with the adhesive layer 14. The laminate including the base material 30 and the laminate 32 pulled out from the holding device 172 is printed by the printing device 13
Guided to 2.

The printing device 132 is a known printing machine such as an offset printing machine. Then, this printing device 13
2 forms a printing layer 24 on the surface of the first layer 20 on which an image line such as “product name” is printed.

The laminate on which the printing layer 24 is formed in this manner is guided to the die-cutting machine 174. The die-cutting machine 174 includes a so-called die cutter having a cutting edge, and the die cutter cuts the first layer 20, the release agent layer 18, the second layer 22, and the adhesive layer 14 in an appropriate shape.

The die-cutting machine 174 may be a roll with a cutting blade, a so-called die roll.

The base material 30 including the first layer 20 and the like having the slits is formed on the roller 10 and the label 10 by the rollers 176a and 176b.
(Necessary portion), and the unnecessary portion is wound into a roll by the dust removing roller 180, and the label 10
The (required portion) is wound into a roll by the winding roller 178 while being temporarily attached to the release sheet 12.

A cut line forming machine may be provided instead of the die cutting machine 174 and the winding roller 178. This score forming machine
Including cutting edge. This cutting edge includes the first layer 20 and the release agent layer 1.
8, for making a cut in the adhesive layer 16, the second layer 22, and the adhesive layer 14 to separate each label 10.

Here, the more specific description is as follows.

(1) A polyester film having a thickness of about 50 μ is used as a first layer, a silicone resin manufactured by Toray Industries, Inc. is used as a release agent for forming a release agent layer, and a portion not to be partially coated is left, and together with a curing agent. After coating, it is baked with a dryer to partially form a release agent layer. Next, a urethane resin forming an adhesive layer is coated on the first layer and the release agent layer so as to have a thickness of about 5 to 50 μm. Further, an aluminum foil was laminated on the surface of the melted 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, release paper made by Shikoku Paper Co., Ltd. and acrylic adhesive (BPS-5
127) is coated to a dry film thickness of 5 to 50 μm to produce a release sheet. Then, it was laminated with the multi-layer product. At this time, the force (c) required to break the second layer was 100 g, and the force (d) required to peel off the release paper from the adhesive was 10 g. The pressure-sensitive adhesive paper thus constructed was labeled and attached to an adherend (paper box, plastic, glass bottle, etc.). The adhesive force (b) to the adherend at this time was 1,500 g. When the attached label was forcibly peeled from the adherend, the film of the first layer was peeled off from the adhesive layer together with the aluminum foil in the portion where the release agent layer was not formed.

Further, a coated paper was used as the first layer, the surface of the coated paper was coated with the EVA resin shown in Table 1 below, and a label produced in the same manner as above also gave similar results.

(2) A nylon film having a thickness of about 70 μm was used as the first layer, and wax was applied and dried as a release agent for forming the release agent layer. Next, a polyester adhesive or the like for forming an adhesive layer is coated on the wax so as to have a thickness of about 5 to 50 μm. Further, an aluminum foil was laminated on the surface of the adhesive in a molten state, 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.
The multi-layered product of the nylon film and the second layer prepared in this way and the release paper were coated with an adhesive to dry the film thickness 5 to 50 μm.
And a release sheet coated so that At this time, the force (d) required to peel off the release paper from the adhesive was 10 g. The pressure-sensitive adhesive paper thus constructed was labeled and attached to an adherend (paper box, plastic, glass bottle, etc.). The adhesive force (b) to the adherend at this time was 1,500 g. When the attached label was forcibly peeled off from the adherend, the film of the first layer was peeled off together with the aluminum foil in the portion where the release agent layer was not formed.

FIG. 7 is an illustrative view showing a device that replaces the substrate manufacturing device shown in FIG. 4.

In this device, unlike the device shown in FIG. 4,
Laminating apparatus 11 for laminating and stacking aluminum foil 16a
Instead of 0, an applicator 116 'for coating the resin forming the adhesive layer 16, a synthetic resin mixed with gold powder or silver powder instead of aluminum foil, the release agent layer 18 on the surface of the first layer 20 and the surface of the adhesive layer 16 are used. A laminating apparatus 110 'for coating is provided on the top.

The applicator 116 'has two rollers 112' and 11 '.
Including 4 '. The lower part of the roller 112 'has a pad 116'.
16a such as urethane resin or EVA resin stored in
Is soaked in. Thus rollers 112 'and 1
By rotating 14 ', the resin 16a is applied by printing onto the surface of the release agent layer 18 of the film 20 guided between them. Then, the film 20 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 first layer 20 is coated with the resin 16a to form the adhesive layer 16, and the adhesive layer 16 is sent to the next second layer laminating apparatus 110 '. The laminating device 110 ′ is composed of, for example, a known printing machine such as an offset printing machine or a coating device, and is provided in the transfer path of the base material 30. Then, the resin mixed with gold powder and silver powder is coated on the surface of the adhesive layer 16 by the laminating apparatus 110 ′, and the second layer 22 is formed.

FIG. 9 is a sectional view of another embodiment.

In this label, an image layer 23 is appropriately formed by printing on the surface of an aluminum foil or a resin film forming the second layer 22,
When the first layer 20 is peeled off, the drawing layer 23 is formed so as to be visible. When the layer forming the second layer 22 is an aluminum foil, the image layer 23 is formed on the surface of the second layer 22 in advance and laminated. When the second layer 22 is formed by coating a resin, it may be formed by printing after the resin film is formed.

The image layer 23 may be formed by coloring by applying a paint or the like with an appropriate coating device.

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

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a sectional view showing a method of using the embodiment shown in FIG. FIG. 3 and FIG. 4 are schematic views showing an example of an apparatus for producing a base material used in the examples of the present invention. 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. FIG. 6 is an illustrative view showing one example of an apparatus for manufacturing a label. FIG. 7 shows the first layer 20 and the release agent layer 18 shown in FIG.
It is an illustration figure which shows an example of the apparatus for manufacturing the base material 30 by stacking the 2nd layer 22 using the multilayer body of. FIG. 8 is a perspective view showing a method of using the label according to the present invention. FIG. 9 is a sectional view of another embodiment. 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, and 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 laminated body, 102 is a holding roller, 104 is a release agent applying device, 104a and 104b are rollers, 104c is a pan,
108 is a winding device, 110 and 110 'are laminating devices,
116 and 116 'are coating devices, 120 is a dryer, and 1
22 is a drying device, 130 and 132 are printing devices, 140 is a take-up roller, 150 is a device, 152 is an adhesive application device, 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, 1
Reference numerals 64 and 166 denote rollers, and 168 denotes a take-up roller.

Claims (16)

[Claims] 1. A first layer, a release agent layer formed on a part of one surface of the first layer, another portion of the one surface of the first layer, and the release agent layer. An adhesive layer formed on the surface of the adhesive layer, and a second layer adhered to the surface of the adhesive layer, where the second layer is a first layer formed by the adhesive layer at a portion where the release agent layer is not formed. Reusable label formed so that it can be separated while being adhered to the layer. 2. The reusable label according to claim 1, wherein the adhesive layer includes a resin layer coated with a synthetic resin. 3. The reusable label according to claim 2, wherein the resin layer includes a resin layer coated with a urethane resin. 4. The reusable label according to claim 2, wherein the resin layer includes a resin layer coated with EVA resin. 5. The reuse preventive label according to claim 1, wherein the adhesive layer includes an adhesive layer coated with an adhesive. 6. The reusable label according to claim 5, wherein the adhesive layer includes an adhesive layer coated with a urethane adhesive. 7. The reusable label according to claim 5, wherein the adhesive layer includes an adhesive layer coated with a polyester adhesive. 8. The reusable label according to any one of claims 1 to 7, wherein a printing layer is formed on one surface of the second layer. 9. The reusable label according to any one of claims 1 to 8, wherein one surface of the second layer is colored. 10. The reusable label according to any one of claims 1 to 9, wherein the second layer includes a layer formed by overlapping aluminum foils. 11. The reusable label according to any one of claims 1 to 9, wherein the second layer includes a colored resin layer. 12. The reusable label according to any one of claims 1 to 11, wherein the release agent layer includes a layer coated with a silicone resin. 13. The reusable label according to any one of claims 1 to 12, wherein the release agent layer forms an image line. 14. The reusable label according to any one of claims 1 to 13, wherein the first layer includes a synthetic resin film. 15. The reusable label of claim 14, wherein the first layer comprises a polyester film. 16. The reusable label according to any one of claims 1 to 15, wherein the first layer includes a printing layer formed on a surface of the first layer.