JPS6183577A - Manufacture of anti-repasting 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 of manufacturing a label for preventing re-sticking, and particularly to a label for preventing re-sticking used for, for example, a price tag or a label affixed to the opening of a container. Regarding the mounting method.

(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, the adhesive paper attached to the opening of a container to indicate its unopened status may be used, depending on the material of the opening of the package and its surface treatment method. It can be picked up and easily peeled off on the spot, and it can be reattached to prevent people from knowing that a foreign object has been mixed into the package. You can't tell if the package has already been opened. 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 papers that can be seen to be peeled off after being applied have become available on the market.

FIG. 7 is a cross-sectional view of such adhesive paper.

This adhesive paper 10 includes a film 20, and a silicon layer 18 is formed on a part of the back surface of this film 20.

Then, metal is deposited on that surface to form a vapor deposited layer 16. Therefore, a portion of this deposited layer 16 is not directly deposited on the film 20 due to the intervening silicon layer 18. Furthermore, the vapor deposition layer 16 and the release sheet 12 are temporarily attached with the pressure sensitive adhesive layer 14.

This adhesive paper 10 is attached by peeling off the release sheet 12 and attaching the surface of the exposed adhesive layer 14 to the opening of the package (not shown).
It is pasted by pressing it against the Then, when the adhesive paper 10 pasted to the opening is peeled off, only the portion of the vapor deposited layer 16' that was not directly deposited on the film 20 by the silicone layer 18 is adhered to the opening by the adhesive layer 14. remain as is. Further, when the opening is opened, the remaining vapor deposited layer 16' attached thereto is cut or torn, thereby making it possible to determine whether the opening has been opened.

(Problems to be Solved by the Invention) However, in the adhesive paper 10, since the metal is vapor-deposited on the film 20 and the silicon layer 18, the film as the material to be vapor-deposited is limited to polyester or the like. In addition to the above, it is also necessary to satisfy various other conditions, which has the disadvantage of increasing costs. Further, when the film 20 is peeled off, a part of the adhesive layer 14 remains on the adhered part of the material to be adhered, and the exposed surface of the adhesive layer 14 becomes sticky.
It has drawbacks such as the accumulation of dust, and also poses hygiene problems.

Therefore, the main object of the present invention is to provide a method for producing a label for preventing re-sticking, which allows the label to be peeled off after being pasted and does not require a vapor deposition process.

(Means for Solving the Problems) In the present invention, the force required to separate the first layer from the second layer with the release agent layer is a, and the adhesive layer is bonded to the adhered material. A method for producing a label for preventing repositioning that satisfies the following formula, where the force is b and the force required to separate the release sheet from the adhesive layer is C, the step of forming an adhesive layer on the release sheet. and a stamp for laminating a release agent layer on one main surface of the first layer, and a synthetic resin forming a second layer is coated on the surface of the release agent layer of the first layer to form a second layer. forming a second layer laminated on the first layer and an adhesive side of the release sheet;
This is a bad method of labeling to prevent re-sticking, which includes the step of overlapping and laminating the surfaces of the layers.

(Function) On the surface of the release agent layer of the first layer forming the surface layer, the second
Since the synthetic resin forming the layer is coated, it is temporarily adhered and laminated on the surface of the release agent layer in a releasable state.

(Effects of the Invention) According to the present invention, since the second layer is laminated on the first layer by coating or the like, it can be made without performing any tricks like in the past. Moreover, the second layer and the first layer are temporarily attached through the release agent layer in such a way that they cannot be reattached, and if you try to peel off the label from the opening of the package, etc., the first layer It can be seen that the applied label has been peeled off because the layer peels off from the second layer and cannot be reapplied. Furthermore, if the second layer is cut or torn, it will 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. Moreover, 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, the surface of the release agent layer is
Since the label is temporarily adhesively laminated and can be peeled off manually from the release agent layer, 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 10 is temporarily attached on a release sheet 12, and an adhesive layer 14. Second
Resin layer 16. The release agent layer 1 and the surface layer 2o as the first layer are sequentially laminated. and,
A printing layer 24 is formed on the surface of the first dawn 20, and
A printed layer 22 is also formed on the surface of the second layer 16 on the adhesive layer 14 side.

The adhesive layer 14 is for providing 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 resin layer 16.

The resin layer 16 is for sealing the opening of the package, for example, and is also for opening the package by being cut or torn to create an unsealed state. This resin layer 16 is made of urethane resin or E
It is formed by coating the surface of the release agent layer 18 with a resin such as VA resin, PVA, vinyl acetate, or acrylic. In addition, another example of the resin layer 16 is a resin layer coated with a synthetic resin made by blending total bending powder with a synthetic resin and formed so that it can be cut or torn by applying a relatively weak force. etc.

The release agent layer 18 is formed so that the resin layer 16 and the film layer 20 can be easily separated in a state where they cannot be reattached, and is made of, for example, silicone resin, fluororesin, wax, etc. The resin layer 16 is coated with a release agent of
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 the release agent layer 18. Examples of the surface layer include paper 5 synthetic paper, film, or aluminum foil. It is preferable to use a relatively flexible material that does not peel off when the surface layer 20 tries to restore its original state.

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.

Note that in this label 10, the force required to peel off the surface layer 20 from the resin layer 16 at the release agent layer 18 is a,
Let b be the adhesive force with the adhered material when the adhesive layer 14 is adhered to the adhered material, and let C be the force required to peel the release sheet 12 from the adhesive layer 14. The structure is such that the force required for peeling satisfies the formula c<a<b.

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

In order to open the opening of the package to which the label 10 consisting of the surface layer 20, the resin layer 16, etc. is attached, the attached label 10 must be peeled off and the sealed portion must be opened.

In this case, the surface layer 20 is weakly temporarily attached to the resin layer 16 via the release agent layer 18, and on the other hand, the resin layer 16 is strongly bonded to the opening of the package with the adhesive layer 14, so the label 10 is If this is attempted, only the surface layer 20 can be peeled off, and the resin layer 16 remains stuck to the sealing portion together with the adhesive layer 14. Therefore, once the surface layer 20 is peeled off, the surface layer 20 is removed again from the resin layer 16.
Since it cannot be reattached to the surface of the package and does not return to its original state, it is clearly visible that the package has been opened.

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

Note that even if the resin layer 16 is cut or torn at the same time as the surface layer 20 is peeled off to open the sealed portion, the unsealed state can be determined by looking at the state of the resin layer 16 in the same manner as described above.

In this example, the label 10 was used for a package of sweets, but it can also be used for a medicine package, a part to be sealed such as a bag of envelopes, and a price tag displaying a price. Of course.

Hereinafter, the terminology of the label shown in FIG. 1 will be explained based on the manufacturing apparatus.

FIGS. 2 and 3 are illustrative views showing an example of an apparatus for manufacturing a laminate used for the label sticker l- shown in FIG. 1.

This laminate 30 has a release agent layer 18 and a resin layer 16 laminated in that order on the surface layer 20.

The device 100 includes a surface material 20 forming a strip-shaped surface layer 20.
It includes a holding roller 102 for holding a in a roll shape. One end of the surface material 20a held by the holding roller 102 is unwound and guided to the release agent coating device 104.

The release agent application device 104 is for printing and applying a release agent 18a such as silicone resin, fluorine resin, etc. on the front surface layer or back surface of the surface material 20a, and uses two rollers 104a and 104b. include. Roller 104a
, the lower part is d in the release agent 14a collected in the pan 104C.
It's pickled. Therefore, rollers 104a and 10
By rotating the release material 4b, the release material 14a is applied by printing onto the surface of the surface material 20a guided between them. Note that 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.

The surface material 20a coated with the release agent 18a is then led to a dryer 106 including, for example, a heater.

In the dryer 106, the release agent 18a printed and coated on the surface material 20a is dried and formed as the release agent layer 18. Surface material 20a with release agent layer 18 formed in this way
is guided to the winding device 108.

The surface material 20a rolled up into a roll is loaded into another resin 16a laminating device 110 shown in FIG.

Laminating device 110 includes two rollers 112 and 114. The lower part of the roller 112 is made of resin 16a such as urethane resin or EVA resin collected in the pan 116? +?
It's being fucked. Therefore, by rotating the rollers 112 and 114, the sealant 16a is printed and coated on the surface of the release agent layer 18 of the facing material 20a guided between them. The surface material 20a coated with the resin L6a 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 surface layer 20 is coated with the resin 16a,
A surface base material 30 having a resin layer 16 formed thereon is formed. This surface base material 30 is then sent to the next printing device 130. The printing device 130 is composed of a known printing machine such as an offset printing machine, and is provided on the transport path of the surface substrate 30. The printing device 130 forms a printed layer 22 on the surface of the resin layer 16 with, for example, characters such as "opened" printed thereon.

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

Apparatus 150 includes a coating device 152 .

The coating device 152 applies adhesive 14 to the surface of the release sheet 12.
A main roller 154 and a roller 15 provided opposite to the main roller 154.
Contains 6. The lower part of the main roller 154 is immersed in the adhesive 14a stored in the pan 158.
The adhesive 14b is applied by the main roller 154 to the surface of the release agent layer 12a of the release sheet 12 sandwiched between the main roller 154 and the roller 156.

Then, a release sheet 12 is coated with an adhesive 14a.
is led to a dryer 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.

The release sheet 12 on which the adhesive layer 14 has been formed in this manner is led to a laminating device 160 for the surface base material 30.

The surface base material laminating device 160 is for laminating the surface base material 30 on the adhesive layer 14 of the laminate of the release sheet 16 and the adhesive layer 14, and holds the surface base material 30 in a roll shape. It includes a holding roller 162 for holding. One end of the surface base material 30 held in a roll is unwound and guided between rollers 164 and 166. At this time, adhesive 1 is applied between these rollers 164 and 166.
A laminate 32 coated with 4a is being guided, so that between these rollers 166 and 164 the surface substrate 30 and the release sheet 12 are superimposed with the adhesive layer 14 in between. In this way, ff111 release sheet 12
The surface base material 30 on which the laminate 32 and the adhesive layer 14 are superposed is guided to a winding roller 168.

Next, the surface substrate 30 on which the release sheet 12 is laminated with the adhesive layer 14 is introduced into an apparatus for manufacturing labels. The fifth country is an illustrative diagram showing an example of an apparatus for manufacturing labels.

Such an apparatus 170 includes a holding device 172 in which a roll of a surface substrate 30 on which a release sheet 12 is laminated with an adhesive layer 14 is loaded. The laminate consisting of the surface base material 30 and the laminate 32 pulled out from the holding device 172 is guided to the printing device 132.

Further, like the printing device 130, the printing device 132 is composed of a known printing machine such as an offset printing machine.

Then, the printing device 132 forms a printed layer 24 on the surface of the surface layer 20, on which lines such as "product name" are printed, for example.

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 174 includes a so-called die cutter having a cutting edge, which cuts the surface layer 20. Release agent layer 18°) Cuts of appropriate shapes are made in the sealing layer 16 and the adhesive layer 14.

In addition, the type F friend machine 174 may use a roll with a cutting edge, so-called a gui roll.

The surface base material 30 including the scored surface layer 20 etc.
Rollers 176a and 176b remove unnecessary parts and label 10.
(necessary part), and the unnecessary part is wound up into a roll by a scrap removal roller 180, and the label 1
0 (required portion) is wound up into a roll by the winding roller 178 while being temporarily attached to the peeled chick 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 has a surface layer 20, a release agent layer 1
8. This is for making cuts in the resin layer 16 and adhesive layer 14 to separate each label 10.

Here, more specifically, it is as follows.

(1) Use high-quality paper with a thickness of about 70 g as the first layer, use silicone resin manufactured by Toshi Co., Ltd. as the release agent to form the release agent layer, coat it with a hardening agent, and then bake it with a dryer and peel it off. Form a layer of agent. Next, a urethane resin manufactured by Takeda Pharmaceutical Co., Ltd., which forms a second layer, is coated on the release agent layer to a thickness of approximately 5 to 50 microns. At this time, the force (a) required to peel off the urethane resin from the release agent layer was 70 g. Based on the 1st layer and 2N multi-layer product created in this way, we applied acrylic adhesive (BPS-5127, manufactured by Toyo Ink) to the paper pattern made by Shikoku Paper Industries Co., Ltd.
A release sheet is produced by coating the film to a dry film thickness of 5 to 50 μm. After that, it was laminated with the multilayer product. At this time, the force (c) 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.). Adhesive force to the adhered material at this time (b)
was 1500g. When I tried to forcefully peel off the pasted label from the material to which it was pasted, the paper No. 1i was peeled off first.

(2) Using coated paper with a thickness of about 70 g as the first layer,
Wax was applied as a release agent to form a release agent layer and dried. Next, a second layer of urethane resin, EVA resin, or the like is coated on the wax to a thickness of about 5 to 50 microns.

At this time, the force (a) required to peel off the urethane resin or EVA resin from the wax surface was 100 g. The multi-layered product of the coated paper and the second layer thus prepared was laminated with a release sheet prepared by coating release paper with an adhesive to a dry film thickness of 5 to 50 μm. At this time, the force (c) 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 strength (b) to the adhered material is 1500
It was g. When ff111 tried to forcibly remove the pasted label from the material to be pasted, the 1N paper was peeled off first.

[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. 2 and 3 are illustrative views showing an example of an apparatus for manufacturing a laminate used for the label shown in FIG. 1. FIG. FIG. 4 is an illustrative view showing an example of an apparatus for further laminating the adhesive layer 14 and the adhesive sheet 12 using the surface base material 30 manufactured by the method shown in FIG. 2. FIG. 5 is an illustrative view showing an example of a device for binding labels. FIG. 6 is a perspective view showing how to use the label manufactured according to the present invention. FIG. 7 is a sectional view showing a conventional example. In the figure, 10 is a label, 12 is a release sheet, 14 is an adhesive layer, 16 is a resin layer, 18 is a release agent layer, 18a is a release agent, 20 is a surface layer, 20a is a surface material, 30 is a surface base material, 32 is a laminate, 102 is a holding roller, 104 is a release agent coating device, 104a, 104b are rollers, 104c is a pan, 108 is a winding device, 110 is a laminating device, 120
122 is a dryer, 130 and 132 are printing devices, 140 is a winding roller, 150 is a device, 15
2 shows a cloth device, 154 is a main roller, 156 is a roller, 158 is a pan, 160 is a surface base material laminating device, 162 is a holding roller, 164 and 166 are rollers, and 168 is a take-up roller. Patent applicant Omatsu Chemical Industry Co., Ltd. Agent Patent attorney Oka 1) Kei Zen (and 1 other person)

Claims (1)

[Claims] 1. The force required to separate the first layer from the second layer with the release agent layer is a, the adhesive force of the adhesive layer with the material to be adhered is b, and the release sheet A method for manufacturing a label for preventing repositioning that satisfies the following formula c<a<b, where c is the force required to peel off the adhesive layer from the adhesive layer,
) forming an adhesive layer on a release sheet; (b) laminating a release agent layer on one main surface of the first layer; (c) on the surface of the release agent layer of the first layer. (d) a second layer laminated on the adhesive side of the release sheet and the first layer; A method for manufacturing a label for preventing re-sticking, the method comprising the step of overlapping and laminating the sides of the label. 2. The method for manufacturing a label for preventing repositioning according to claim 1, wherein step (c) includes a step of coating a urethane resin to form a second layer. 3. The method for producing a label for preventing repositioning according to claim 1, wherein step (c) includes a step of coating an EVA resin to form a second layer. 4. The method for producing a repositioning prevention label according to claim 1, wherein step (c) includes a step of forming a second layer by coating a synthetic resin mixed with metal powder. 5. The method for manufacturing a label for preventing repositioning according to any one of claims 1 to 4, wherein step (b) includes a step of coating a silicone resin to form a release agent layer. 6. The repositioning prevention label according to any one of claims 1 to 5, wherein the step (b) includes a step of forming a printing layer on at least one main surface of the first layer. manufacturing method. 7. The repositioning prevention label according to any one of claims 1 to 6, wherein the step (c) includes a step of forming a printing layer on at least one main surface of the second layer. manufacturing method.