JP3141346U - Anti-tamper label - Google Patents

Abstract

An object of the present invention is to efficiently produce a label capable of discriminating peeling without leaving an adhesive on an adherend.
A printed sheet in which a release layer 3 having peelability is printed in a predetermined pattern on the back surface of a transparent film 2 and a print layer 4 is formed so as to cover the back surface of the transparent film 2 and the back surface of the release layer 3 10 and the cushion sheet 20 formed by forming the adhesive layers 5 and 7 on the front and back surfaces of the cushion layer 6 having the property of irreversibly elastically changing. The print sheet 10 and the cushion sheet 20 are cushions. It is characterized by being integrally formed by the adhesive force of the adhesive layer 5 on the surface of the sheet 20.
[Selection] Figure 2

Description

  The present invention relates to a label that can be identified as having been peeled off without leaving an adhesive on the adherend (the material surface of the partner to which the label is attached).

  Conventionally, there is a tamper-proof label that can recognize that the label has been peeled off and does not leave an adhesive on the adherend (see, for example, Patent Document 1). The tamper-proof label of Patent Document 1 prints a release layer having peelability on a back surface of a transparent film in a predetermined pattern, forms a print layer so as to cover the back surface and the release layer of the transparent film, and on the print layer. It is configured by forming a cushion layer having a property of irreversibly elastically changing and forming an adhesive layer on the cushion layer.

Japanese Patent No. 3690673

  However, when a plurality of layers are stacked as in Patent Document 1, there is a problem that it takes time and productivity is lowered. In addition, a plurality of stacking steps are required to stack a plurality of layers. However, if a failure occurs in any one of the stacking steps, it is not handled as a non-defective product, and thus the number of stacking steps needs to be reduced.

  Therefore, an object of the present invention is to efficiently produce a label that can be identified as having been peeled off without leaving an adhesive on the adherend.

  In order to achieve the above object, a typical tamper-proof label of the present invention comprises a release layer having a peelability printed on a back surface of a transparent film in a predetermined pattern, and the back surface of the transparent film and the release layer. A printed sheet on which a printed layer is formed so as to cover the back surface, and a cushion sheet formed by forming an adhesive layer on the front and back surfaces of the cushion layer having a property of irreversibly elastically changing, and the printed sheet and the The cushion sheet is characterized by being integrally formed by the adhesive force of the adhesive layer on the surface of the cushion sheet.

  The print sheet and the cushion sheet may be transported continuously from different transport means, and the print sheet and the cushion sheet may be integrated by being pressed against each other.

  According to the above-described configuration, the multilayer structure of the tamper-proof label is not sequentially stacked, but the multilayer structure printing sheet and cushion sheet are integrated by the surface adhesive layer of the cushion sheet. Thereby, since it is not necessary to repeat the operation | work which overlaps a layer, the number of processes can be saved significantly and an operation | work can be simplified. As the number of processes decreases, the number and possibility of errors also decrease, so it becomes easy to maintain high quality.

  In addition, if the printing sheet and the cushion sheet are continuously conveyed from different conveying means, and the printing sheet and the cushion sheet are integrated with each other by being pressed against each other, the tampering is performed continuously only through the pressing process. Since the prevention label can be produced, the tamper-proof label 1 can be produced more efficiently.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a usage state of a tamper-proof label according to the present embodiment.

  As shown in FIG. 1, the tamper-proof label 1 of the present embodiment guarantees that there is no unsealing for the purpose of preventing tampering of contents stored in containers such as beverages, foods, pharmaceuticals, and cosmetics. , Formed in various shapes such as strips and squares, and the entire circumference of the separation layer A3 between the lid A1 and the container body A2 of the container A or a part of the separation layer B3 between the cap B1 and the container body B2 of the container B Used to paste.

[Configuration of tamper-proof label 1]
Such a label structure will be described with reference to FIG. FIG. 2 is a cross-sectional view showing the layer structure of the tamper-proof label 1 before peeling.

  As shown in FIG. 2, the tamper-proof label 1 has a configuration in which a cushion sheet 20 is adhered to a printing sheet 10 with an adhesive.

  The print sheet 10 includes a transparent film 2, a release layer 3 that is printed on the back surface of the transparent film 2 and has peelability, and a print layer 4 that is printed so as to cover the back surface of the transparent film 2 and the release layer 3. The Note that a special mat processing may be applied to the surface of the transparent film 2.

  The cushion sheet 20 is attached to the printing sheet 10 to be attached to the surface of the tamper-proof label 1, and the cushion layer 6 is attached to the printing sheet 10 by the surface adhesive layer 5 and has cushioning properties and film properties. And a back surface adhesive layer 7 disposed on the back surface of the cushion layer 6 for adhering to the adherend.

  The configuration of each layer of the tamper-proof label 1 will be described in detail.

  The transparent film 2 is a double-sided in-line easy-to-adhesion coating product formed of a transparent polymer film such as vinyl, polypropylene, or polystyrene, and can be subjected to original printing on the surface.

  The release layer 3 is formed of UV (ultraviolet curable) silicon resin. The release layer 3 is made of silicon, Teflon (registered trademark), matte particle, oil or fat represented by acrylic ester of higher alcohol such as stearyl acrylate, cellulose ester represented by nitrocellulose, or ether. It may be formed. A plurality of release layers 3 are formed by a pattern such as “opened” at a predetermined interval by letterpress printing, flexographic printing, screen printing, or the like.

  The printed layer 4 is printed when the anti-tamper label 1 attached to the containers A and B is peeled off, and displays the pattern of the release layer 3 that is peeled off when the anti-tamper label 1 is peeled off. As will be described later, the printing layer 4 is composed of a peeling area located below the peeling layer 3 and a printing area directly formed below the transparent film 2.

  The surface adhesive layer 5 is formed by applying various adhesives having rubber elasticity on the cushion layer 6.

  As the cushion layer 6, a urethane thin film is used in the present embodiment. The thickness of the thin film is preferably 5 to 30 μm considering the peelability of the release layer 3, but is not limited thereto. Further, the material is not limited to the urethane thin film. For example, an EVA thin film, an olefin thin film, a rubber-based thin film, a vinyl chloride thin film, or the like may be used.

  Although the back surface adhesive layer 7 may be comprised similarly to the surface adhesive layer 5, the base material of the double-sided adhesive tape which has a base material is good also as a film of 4-50 micrometers. Moreover, the adhesive property of the double-sided pressure-sensitive adhesive tape having an adhesive or a substrate can be changed according to the material of the adherend.

  Next, the situation at the time of peeling off the tamper-proof label 1 from the adherend will be described. FIG. 3 is a cross-sectional view showing a state of deformation of the tamper-proof label 1 when the tamper-proof label is peeled off.

  As shown in FIG. 3, when the tamperproof label 1 attached to the separation layer B3 between the cap B1 and the container main body B2 as the adherend is peeled off, the label shape is distorted at the peeled place.

  Then, since there is peelability between the transparent film 2 and the release layer 3, the transparent film 2 and the release layer 3 are separated from each other. Here, the printed layer 4 (peeling region 4 a) on the lower surface of the release layer 3 is integrated with the cushion layer 6 by the surface adhesive layer 5. For this reason, the peeling area 4 a of the printed layer 4 is pulled downward from the surface adhesive layer 5 on the cushion layer 6. Thereby, the peeling area 4 a of the printing layer 4 is separated from the transparent film 2.

  On the other hand, the print region 4 b that is not under the release layer 3 in the print layer 4 is formed integrally with the transparent film 2. For this reason, even if distortion arises in a label shape, it does not leave | separate from the transparent film 2. FIG.

  Next, the label structure after the tamper-proof label 1 is cut will be described. FIG. 4 is a cross-sectional view showing the layer structure after peeling of the tamper-proof label 1.

  As shown in FIG. 4, in the tamper-proof label 1 after being peeled off from the adherend, the release layer 3 and the release region 4 a overlapping the release layer 3 are formed by the irreversible elastic deformation of the cushion layer 6. It will be in the state which peeled from. Further, when the cushion layer 6 is contracted, a gap S is generated between the transparent film 2 and the release layer 3, and the print layer 4 is displaced in the position of the release region 4 a and the print region 4 b from the transparent film 2.

  Then, since the area | region (peeling area | region 4a) in which the peeling layer 3 was provided among the printing layers 4 leaves | separates from the transparent film 2, when the anti-tampering label 1 is seen from the surface, the printing of the peeling area | region 4a will be faded. On the other hand, since the area (printing area 4b) where the release layer 3 is not provided remains in direct contact with the transparent film 2, the printing of the printing area 4b can be clearly seen when the tamper-proof label 1 is viewed from the surface. As a result of the clear contrast between the part of the peeling area 4a and the part of the printing area 4b as described above, for example, if the peeling area 4a has a pattern such as “opened”, this pattern appears on the surface. Thereby, even if the tamper-proof label 1 that has been peeled off is attached again to the adherend, it can be recognized that it has been peeled off once.

  Moreover, according to this embodiment, since the printing layer 4 can be isolate | separated inside the tamper-proof label 1, the back surface adhesion layer 7, the peeling area | region 4a of the printing layer 4, and the peeling layer 3 remain on a to-be-adhered body. The appearance of the adherend can be kept hygienic.

[Method of manufacturing tamper-proof label 1]
Next, a method for manufacturing the tamper-proof label 1 will be described. FIG. 5 is a schematic view of an apparatus for manufacturing the tamper-proof label 1.

  As shown in FIG. 5, the tamper-proof label 1 manufacturing apparatus includes a printing sheet conveyance unit 31 that conveys a printing sheet 10 that is a continuous sheet, and a cushion sheet conveyance that conveys a cushion sheet 20 that is a continuous sheet. Means 32; pressure contact means 34 for integrally forming the printing sheet 10 and cushion sheet 20; cutting means 35 for half-cutting the tamper-proof label 1; and winding means for winding the completed tamper-proof label 1 37 etc. Hereinafter, the manufacturing procedure will be described while explaining the configuration of the manufacturing means.

  The printing sheet conveying unit 31 is a unit that conveys the printing sheet 10 continuously. As shown in the enlarged view, the printed sheet 10 is conveyed with the printed layer 4 on the side in contact with the cushion sheet 20 by the press contact means 34 and the transparent film 2 on the side opposite to the side in contact with the cushion sheet 20. Is done. A printing roller (not shown) or a feeding roller that feeds the printing sheet 10 manufactured by the printing machine is provided upstream of the printing sheet conveying unit 31 in the sheet conveying direction.

  The cushion sheet conveying means 32 is means for continuously conveying the cushion sheet 20. In the cushion sheet conveying means 32, the cushion sheet 20 is first conveyed with the release sheet C1 attached to the front adhesive layer 5 side and the release sheet C2 attached to the rear adhesive layer 7 side. On the upstream side in the sheet conveying direction of the cushion sheet conveying means 32, there is a not-shown cushion sheet manufacturing apparatus or a delivery roller that sends out the cushion sheet 20 manufactured by the cushion sheet manufacturing apparatus.

  In the middle of the cushion sheet conveying means 32, a removing roller 33 for removing the release sheet C1 by winding it is disposed. The removing roller 33 removes the release sheet C1 attached to the lower surface of the cushion sheet 20 in the figure. As a result, the surface adhesive layer 5 is exposed on the side of the cushion sheet 20 facing the printed sheet 10 by the press contact means 34 described later.

  The pressure contact means 34 is provided with a pressure roller 34 a for winding the printing sheet 10 and a pressure roller 34 b for winding the cushion sheet 20. Here, the pressure roller 34a and the pressure roller 34b are pressurized so as to contact each other. For this reason, the printing sheet 10 and the cushion sheet 20 wound around each roller are pressed against each other when passing between the pressure roller 34a and the pressure roller 34b. The printed sheet 10 is bonded to the surface adhesive layer 5 of the cushion sheet 20 by the pressure-sensitive adhesive force of the surface adhesive layer 5 so as to be integrated with the cushion sheet 20. As a result, the outer shape of the tamper-proof label 1 is completed.

  Thereafter, the tamper-proof label 1 is half-cut from the cutting means 35 or, if necessary, punched. In this embodiment, the half cut which does not cut | disconnect only the peeling sheet C2 was performed.

  Moreover, in this embodiment, the winding means 36 which winds up the unnecessary label 1a among the tamper-proof labels 1 cut | disconnected by the half cut was arrange | positioned. By winding the unnecessary portion of the label 1a by the winding means 36, the tamper-proof label 1 becomes a product.

  Finally, the tamper-proof label 1 is wound up by the winding means 37, and the tamper-proof label 1 is collected.

  As described above, in the present embodiment, the multilayer structure of the tamper-proof label 1 is not formed by sequentially stacking, but is conveyed from different conveying means (print sheet conveying means 31 and cushion sheet conveying means 32) and the cushion sheet. The print sheet 10 and the cushion sheet 20 are bonded together by an adhesive (surface adhesive layer 5) formed on the side facing the print sheet 10 in 20 and integrally configured.

  Thereby, since it is not necessary to repeat the operation | work which overlaps a layer, the number of processes can be saved significantly and an operation | work can be simplified. As the number of processes decreases, the number and possibility of errors also decrease, so it becomes easy to maintain high quality.

  As described above, according to the configuration of this embodiment, it can be determined that the adhesive has been removed without leaving an adhesive, and labels can be produced efficiently.

  INDUSTRIAL APPLICABILITY The present invention can be used for a label that can be identified as having been peeled off without leaving an adhesive on the adherend (the material surface of the partner to which the label is attached).

Explanatory drawing of the use condition of the tamper-proof label concerning this embodiment. Sectional drawing which shows the layer structure before peeling of the tamper-proof label 1. Sectional drawing which shows the mode of a deformation | transformation of the falsification prevention label 1 at the time of peeling. Sectional drawing which shows the layer structure after peeling of the tamper-proof label 1. FIG. The schematic diagram of the manufacturing apparatus of the tamper-proof label 1. FIG.

Explanation of symbols

A ... Container, A1 ... Lid, A2 ... Container body, A3 ... Separation layer, B ... Container, B1 ... Cap, B2 ... Container body, B3 ... Separation layer, C1 ... Release sheet, C2 ... Release sheet, 1 ... Tampering Prevention label, 1a ... label, 2 ... transparent film, 3 ... peeling layer, 4 ... printing layer, 4a ... peeling region, 4b ... printing region, 5 ... surface adhesive layer, 6 ... cushion layer, 7 ... back surface adhesive layer, 10 DESCRIPTION OF SYMBOLS ... Print sheet, 20 ... Cushion sheet, 31 ... Print sheet conveyance means, 32 ... Cushion sheet conveyance means, 33 ... Removal roller, 34 ... Pressure contact means, 34a ... Pressure roller, 34b ... Pressure roller, 35 ... Cutting means, 36 ... Winding means, 37 ... Winding means

Claims (2)

A printed sheet on which a release layer having peelability is printed in a predetermined pattern on the back surface of the transparent film, and a print layer is formed so as to cover the back surface of the transparent film and the back surface of the release layer;
A cushion sheet formed by forming an adhesive layer on the front and back surfaces of the cushion layer having the property of irreversibly elastically changing,
The tamper-proof label, wherein the print sheet and the cushion sheet are integrally formed by an adhesive force of the adhesive layer on the surface of the cushion sheet.   2. The tamper-proof label according to claim 1, wherein the print sheet and the cushion sheet are continuously conveyed from different conveying means, and the print sheet and the cushion sheet are integrated with each other by being pressed against each other. .

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