JP2021170095A - Alteration prevention label and manufacturing method of alteration prevention label - Google Patents

Abstract

To provide an alteration prevention label that has a simple structure, is easy to manufacture, and contributes to cost reduction.SOLUTION: An alteration prevention label 3 includes a surface layer laminated film 21 which is given curl characteristics by applying tension and has an adhesive layer 23 on the back surface side, and a glueless film 9 as an underlayer film that is attached to the back surface of the surface layer laminated film 21 via an adhesive layer 23 and does not have an adhesive layer on the back surface of itself. Both side ends of the surface layer laminated film 21 that is not covered with the glueless film 9 serve as an adhesive portion 3a for sticking to the package. The glueless film 9 is laminated on a release sheet 13 via a non-tack adhesive 11. The alteration prevention label 3 is peeled off from the release sheet 13 and attached to the package with the adhesive portions 3a on both end sides. When a non-adhesive portion 3b whose back surface side is covered with the glueless film 9 is cut, the cut portions are curled so as to be separated from each other by the contraction force of the surface layer laminated film 21.SELECTED DRAWING: Figure 4

Description

The present invention relates to a tamper-proof label as a seal used by being attached to a packaging body of a pharmaceutical product, a medical member, a food product, etc., and a method for manufacturing the same.

For example, medical members such as artificial joints used for surgery and bolts to be embedded in the body are tightly packaged so as not to lead to a medical accident so that they cannot be replaced or whether they have been opened or not can be easily determined. A tamper-proof label is affixed to the opening / closing lid and the side surface of the package.
In many cases, the size of the member opened at the time of surgery does not match and is not used. In such a case, it must be possible to easily determine that the unused medical member has been opened.

In this type of tamper-proof label, for example, when the label is cut with scissors or a cutter to open it, the cut ends are curled so as to be separated from each other, and the trace of opening can be seen at a glance.
In FIG. 4 of Patent Document 1, a surface film having curl characteristics and a base material are bonded to each other via an adhesive layer on both ends, and an adhesive layer is provided on the entire back surface of the base material to release a release paper. A tamper-proof label with a structure with a sticker has been proposed.
This is a manufacturing process in which the film is bonded to the base material while applying tension, so that a shrinkage force (internal stress) remains in the film. Since there is no adhesive layer between the film and the base material in the center of the back surface of the film, the center of the film is sharp, such as a cutter, with the release paper peeled off and the base material attached to the packaging. When the film is cut together with the base material with a knife, the films curl apart from each other, and the fact of label cutting (opening trace) can be seen at a glance.
Patent Document 2 proposes a tamper-proof label having a structure in which an adhesive layer is partially formed on the back surfaces of both ends of a laminated film (composite film) having curl characteristics in terms of material and a lower base material is attached. ing. The lower base material has a printed character layer on the surface and an adhesive layer for sticking to the package on the entire lower surface.
Further, a plurality of cut lines are formed in the non-adhesive portion of the laminated film in parallel with the length direction of the label. When the portion of the laminated film in which the cut line is inserted is cut, the plurality of film pieces are randomly curled, so that the opening trace can be seen at a glance and the cut portion is difficult to repair.

Japanese Unexamined Patent Publication No. 2005-241749 Utility Model Registration No. 3172519

In the conventional tamper-proof label, although there is a difference in the method of imparting curl characteristics, as a general rule, adhesive layers are partially provided at both ends of the surface layer film and the lower layer base material is attached, and the back surface of the lower layer base material is attached. The entire surface is attached to the package as an adhesive layer.
In other words, a non-adhesive portion is provided between both ends between the lower layer base material and the non-adhesive portion, and the surface layer film is cut at this non-adhesive portion to develop curl. Therefore, after the label is cut and the surface film is curled, the lower layer base material remains attached to the package.
However, with such a configuration, not only is it difficult to simplify the label configuration, but also adhesive layers must be partially provided at both ends of the surface film, which complicates the manufacturing process. ..

The present invention has been made by paying attention to the above-mentioned conventional problems, and an object of the present invention is to provide a tamper-proof label which has a simple structure, is easy to manufacture, and contributes to cost reduction.
Another object of the present invention is to provide a method for manufacturing such a tamper-proof label.

The present invention has been made to achieve the above object, and the invention of claim 1 is a tamper-proof label used for sealing a package, and a curl property is imparted by applying tension. A surface layer laminated film having an adhesive layer on the back surface side and a lower layer film which is attached to the back surface of the surface layer laminated film via the adhesive layer and does not have an adhesive layer on the back surface of itself. The tamper-proof label is characterized in that both end portions of the surface layer laminated film that are not covered with the lower layer film serve as adhesive portions for sticking to the package.

The invention of claim 2 is a falsification prevention label according to claim 1, wherein the lower layer film is a printing layer.

The invention of claim 3 is the falsification prevention label according to claim 1 or 2, wherein the falsification prevention label has a release sheet to which the adhesive portion is attached in an unused state. Is.

The invention of claim 4 is a method for manufacturing a tamper-proof label used for sealing a package, wherein a lower layer film having no adhesive layer on the back surface is laminated on a release sheet and sent, and the lower layer film is fed. The step of removing unnecessary parts outside the predetermined area and the surface layer laminated film having an adhesive layer on the back surface are laminated on the release sheet while applying tension, and the lower layer film from which the unnecessary parts have been removed is obtained from the area. A tamper-proof label, which comprises a step of covering a wide area and a step of removing an unnecessary portion outside a predetermined area of the surface layer laminated film and leaving the surface layer laminated film so as to be surrounded by the release sheet. The method.

The invention of claim 5 is the method for manufacturing a label for preventing tampering according to claim 4, wherein the surface layer laminated film and the above-mentioned surface layer laminated film are fed while a laminated base material having a base material release sheet laminated on the back surface of the surface layer laminated film. This is a method for producing a tamper-proof label, which comprises separating a release sheet for a base material and applying tension to the separated surface layer laminated film.

The invention of claim 6 is the method for producing an anti-tampering label according to claim 5, wherein the underlayer film is printed or a printed one is used as the underlayer film. It is a manufacturing method of.

According to the present invention, it is possible to provide a falsification prevention label that has a simple structure, is easy to manufacture, and contributes to cost reduction.

It is a perspective view which shows the use state of the tampering prevention label which concerns on one Embodiment of this invention. It is a perspective view which shows the state in which the tamper-proof label shown in FIG. 1 was cut. It is a partially omitted perspective view which shows the manufacturing process of the falsification prevention label shown in FIG. It is a figure which shows the cross section at each stage of manufacturing of the tamper-proof label shown in FIG. 1, (a) is the cross-sectional view by line X1-X1 of FIG. , (C) is a cross-sectional view taken along the line X3-X3, and (d) is a cross-sectional view taken along the line X4-X4. It is a side view including a partially enlarged view at the tension application site in the manufacturing process shown in FIG. It is a side view for demonstrating the bending characteristic when the tamper-proof label shown in FIG. 1 is peeled off from a release sheet. It is a side view for demonstrating the curl characteristic when the tamper-proof label shown in FIG. 1 is cut at the center.

Hereinafter, a falsification prevention label and a method for manufacturing the same according to the embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a state in which both sides of the package 1 are sealed with tamper-proof labels 3A and 3B. The package 1 includes an inner box 5 having an opening shape on the upper surface in which a medical member (not shown) is housed, and an outer box 7 having a cylindrical cross section covering the upper surface, both side surfaces, and the bottom surface of the inner box 5. The inner box 5 can be pulled out to the outside.
The tamper-proof labels 3A and 3B have adhesive portions 3a at both ends in the longitudinal direction, and the other portions are non-adhesive portions 3b having no adhesive layer on the back surface. By attaching the adhesive portion 3a to the upper and lower surfaces of the outer box 7 and covering it in a U shape, the inner box 5 is sealed by the non-adhesive portion 3b so that it cannot be pulled out.

When the non-adhesive portion 3b of the tamper-proof label 3 is cut with a scissors, a cutter, or the like in order to open the package 1, as shown in FIG. 2, the separated pieces 3b-1, 3b- of the separated non-adhesive portion 3b are cut. 2 are curled outward so as to be separated from each other, and the inner box 5 can be pulled out outward to take out the contents.
At the same time as cutting, the separated pieces 3b-1 and 3b-2 of the non-adhesive portion 3b are largely curled outward, so that the trace of opening can be seen at a glance. Here, an opening mark obtained by cutting the tamper-proof label 3A at one end of the package 1 is illustrated, but the mark of opening due to curl is also apparent when the tamper-proof label 3B at the other end is cut. It becomes.

Clarification of the opening trace by the expression of curl has been conventionally performed by various methods as described above, but the feature of the present invention is the facilitation of production of the label structure. The features will be described below.
FIG. 3 shows a manufacturing process of the tamper-proof label of the present invention. A transparent glueless film 9 as a lower layer film is conveyed in the direction of arrow F by a transfer guide (not shown). The glueless film 9 is conveyed while being printed by a printing apparatus (not shown).

As shown in FIG. 4A, the glueless film 9 is laminated on the release sheet 13 via the non-tack adhesive 11 on the back surface side. As will be described later, the release sheet 13 finally becomes a holder for the tamper-proof label 3 in an unused state.
In the present embodiment, polyethylene terephthalate (PET # 25) having a thickness of 25 μm is laminated as a glueless film 9, an acrylic solvent type is laminated as a non-tack adhesive 11, and polyethylene is laminated on both sides of glassine paper as a release sheet 13. One side (back side) of which is treated with silicone and has a thickness of 104 mm is used.
As the glueless film 9 having such a structure, for example, a kill film transparent GSB (manufactured by Maru Adhesive Co., Ltd.) can be adopted.

As shown in FIG. 3, a front slit is made by a rotary cutter 15 having a rotary blade 15a in an unnecessary portion other than a predetermined region of the glueless film 9, and the residue 9a is wound up by the roller 17 to raise the residue. .. As shown in FIG. 4B, only the release sheet 13 remains in the portion 19 where the residue has been raised.

As shown in FIG. 3, a step of covering the entire surface of the release sheet 13 after the glueless film 9 is scraped with the surface layer laminated film 21 is subsequently performed. As shown in FIG. 4C, the surface layer laminated film 21 has an adhesive layer 23 on the entire back surface side, and the surface layer laminated film 21 is directly on the release sheet 13 in the portion where the glueless film 9 does not exist. It is laminated on.
In the step of coating the surface layer laminate film 21, as shown in FIG. 5, the laminate base material 31 in which the base material release sheet 27 is laminated on the back surface of the surface layer laminate film 21 is unwound from the laminate base material roll 25.
The base material release sheet 27 is separated in the middle by the roller 33 and wound up by the roller 37. The separated surface layer laminated film 21 is attached to the release sheet 13 by the rollers 39 while applying tension T.
The tension T is applied by applying a brake to the laminated base material roll 25 to provide a speed difference between the laminated base material roll 25 and the roller 39. The surface layer laminated film 21 is fed from the laminated base material roll 25 toward the roller 39 via the roller 35. Reference numeral 41 indicates a transport roller. In FIG. 3, a part of the structure (FIG. 5) of the process of attaching the surface layer laminated film 21 is omitted.

In the present embodiment, a transparent polyester film having a thickness of 25 μm, which is surface-coated as the surface layer laminate film 21 of the laminate base material 31, an acrylic pressure-sensitive adhesive as the adhesive layer 23, and one side as the base material release sheet 27. Glassin paper having a thickness of 88 μm in which polyethylene is laminated on the (upper surface) is used. As such a laminated base material 31, for example, PET25 (A) PAT18LK (manufactured by Lintec Corporation) can be adopted.

As shown in FIG. 3, after the step of attaching the surface layer laminated film 21, a plurality of vertical slits along the transport direction and horizontal slits orthogonal to the transport direction are provided by the flat drawing blade 43 provided so as to be movable in the vertical direction. Is inserted as a front slit, and the glueless film 9 is divided and unnecessary portions outside the predetermined region of the surface layer laminated film 21 are removed. That is, a step of leaving the tamper-proof label 3 made of the surface layer laminated film 21 on the glueless film 9 is performed. Therefore, the surface layer laminated film 21 is surrounded by the release sheet 13.
The residue 45 of the surface layer laminated film 21 is pulled up at the portion of the roller 47 and wound up by the roller 49. As a result, the surface layer laminated film 21 is scraped up.

After raising the residue of the surface layer laminated film 21, a plurality of tamper-proof labels 3 are held on the release sheet 13.
As shown in FIG. 4D, the tamper-proof label 3 has no glue-free film 9 attached to the adhesive portions 3a in the front-rear direction (both ends in the longitudinal direction) in the transport direction, and is peeled off from the release sheet 13. The adhesive layer 23 is exposed. The tamper-proof label 3 held on the release sheet 13 indicates an unused state. In this state, the shrinkage force of the surface layer laminated film 21 due to the application of tension is maintained parallel to the longitudinal direction of the tamper-proof label 3 due to the rigidity of the release sheet 13, and curl does not occur.

When the falsification prevention label 3 is peeled off from the release sheet 13, as shown in FIG. 6, the back surface side of the surface layer laminated film 21 on which the glueless film 9 is laminated is curved so as to be convex. This is because the non-adhesive portion 3b on which the glueless film 9 is laminated has higher rigidity than the adhesive portion 3a composed of only the surface layer laminated film 21, so that the parallelism of the shrinkage force of the surface layer laminated film 21 is broken and the arrow R1 indicates. This is because, as shown, the bending starting point is generated inward in the adhesive portion 3a.
Therefore, as shown in FIG. 7, when the non-adhesive portion 3b is cut at the center C with the tamper-proof label 3 attached to the package 1, the separation pieces 3b-1 and 3b-2 are separated from each other. Curves to.

As described above, the adhesive layer 23 is provided on the entire back surface of the surface layer laminated film 21, and the glueless film 9 as the lower layer film is attached to the back surface side to form the non-adhesive portion 3b, and the portion where the glueless film 9 does not exist is formed. By forming the adhesive portion 3a, it is possible to realize the tamper-proof label 3 having an extremely simple structure while having a curl characteristic for clearly discriminating the opening trace.
As is clear from FIG. 2 and the like, in the falsification prevention label 3 according to the present embodiment, there is a base material that remains attached to the package 1 after cutting, such as the falsification prevention label of Patent Document 1. Instead, the opening trace is visually recognized only by the curled surface layer laminated film 21.
Focusing on this point, the present invention eliminates the need for a base material that remains attached, and simply attaches a glueless film 9 that also serves as a printing layer to the back surface side of the surface layer laminated film 21 to provide a non-adhesive portion 3b as a cutting portion. Is formed, and the portion where the glueless film 9 does not exist is used as it is as the adhesive portion 3a to simplify the configuration.

By using the entire back surface of the surface layer laminated film 21 as the adhesive layer 23 and the remaining portion to which the glueless film 9 is attached as the adhesive portion 3a, it is troublesome to partially provide the adhesive portions at both ends as in the conventional product. Not really.
The surface layer laminate film 21 may be unrolled from the roll state and an adhesive may be applied to the back surface thereof, but it is simple by using the laminate base material 31 provided with the adhesive layer 23 and the base material release sheet 27 in advance. With the configuration, it is possible to easily manufacture the label 3 for preventing tampering by applying tension by the dry lamination method.
Examples of the material of the surface layer laminated film 21 include polyethylene, EVA (ethylene / vinyl acetate copolymer resin), polyurethane, vinyl chloride, and the like, and examples of the lower layer film (glueless film 9) include nylon, PET (polyethylene terephthalate), and the like. Examples include polyester and polypropylene.

In the present embodiment, since the tension T is mechanically and physically applied to the surface layer laminated film 21, the curl property can be strongly expressed as compared with the case where a film having curl property as a material is used. , The visibility of the opening trace can be improved.
Examples of the film having curl characteristics in terms of material include a film obtained by laminating a biaxially stretched film and a non-stretched film, a film obtained by laminating a highly shrinkable film layer and a low shrinkage or non-shrinkable film, and the like. There is.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the invention can be made even if there is a design change within a range not deviating from the gist of the present invention. included.
For example, as the glueless film 9, a printed film may be used. Further, the tension T may be applied to the surface layer laminated film 21 by applying a pulling force to the shaft of the laminated base material roll 25 in a direction away from the roller 39.

1 ... Package 3 ... Label for tampering prevention 3a ... Adhesive part 9 ... Adhesive-free film as lower layer film 13 ... Release sheet 21 ... Surface layer laminated film 23 ... Adhesive layer 27 ... Release sheet for base material 31 ... Laminated base material

Claims (6)

A tamper-proof label used to seal packaging.
Curling characteristics are imparted by applying tension, and a surface laminated film having an adhesive layer on the back surface side and the back surface of the surface layer laminated film are attached via the adhesive layer, and an adhesive is applied to the back surface of itself. A tamper-proof label comprising a lower layer film having no layer, and having both end portions of the surface layer laminated film not covered with the lower layer film serving as adhesive portions for sticking to the package. In the tamper-proof label described in claim 1,
A label for preventing tampering, wherein the lower layer film is a printing layer. In the tamper-proof label according to claim 1 or 2.
A tamper-proof label characterized by having a release sheet to which the adhesive portion is attached in an unused state. A method for manufacturing tamper-proof labels used for sealing packages.
A step of laminating a lower layer film having no adhesive layer on the back surface on a release sheet and sending it, a step of removing an unnecessary portion outside a predetermined region of the lower layer film, and a tension of a surface layer laminated film having an adhesive layer on the back surface. A step of laminating on the release sheet while applying the film to cover the lower layer film from which unnecessary portions have been removed wider than the area thereof, and removing unnecessary portions outside a predetermined region of the surface layer laminated film to remove the unnecessary portion of the surface layer laminated film. A method for producing a tamper-proof label, which comprises a step of leaving the film so as to be surrounded by the release sheet. In the method for manufacturing a tamper-proof label according to claim 4,
The surface layer laminate film and the base material release sheet are separated while feeding the laminated base material on which the base material release sheet is laminated on the back surface of the surface layer laminate film, and tension is applied to the separated surface layer laminate film. A method for manufacturing a tamper-proof label, which is characterized by. In the method for manufacturing a tamper-proof label according to claim 5,
A method for producing a falsification-preventing label, which comprises printing on the lower layer film or using a printed one as the lower layer film.

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