JP2012093674A - Alteration prevention seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alteration prevention seal which secures the degree of freedom of glossy patterns of a hologram layer and also has the function of determining authenticity in re-pasting.SOLUTION: An alteration prevention seal 1 prevents alteration by a configuration according to which, if it is peeled after being pasted to an object B, the fact of peeling can be recognized by a user. The alteration prevention seal 1 includes a base material layer 11 having brittleness, a peeling layer 12 formed of peel materials under the base material layer 11, an adhesion layer 13 disposed under the base material layer 11 and formed of an adhesive so as to cover the peeling layer 12, a hologram layer 14 formed of hologram foil under the adhesion layer 13, and an adhesive fixing layer 15 formed under the hologram layer 14 and adhesively fixed to the object B.

Description

  The present invention relates to a tamper-proof seal configured so as not to return to the state before application when it is peeled after being applied to an object.

  Conventionally, the tamper-proof seal has been subjected to various processes in order not to be imitated. In particular, there is one using a fragile hologram foil so that imitation is difficult (see, for example, Patent Document 1).

  In Patent Literature 1, when the base material of the seal is peeled off from the adherend, the hologram layer is peeled from the hologram layer when it has an adhesive portion that is adhered to the base material and a peeling portion that is peeled off from the base material. The total thickness of the layers is set to have different cross-sectional shapes at the bonding portion and the peeling portion. Accordingly, the hologram layer and the release layer are configured to be easily cut between the adhesive portion and the release portion, and can be easily released between the adhesive portion and the release portion.

JP-A-2005-106857

  However, if the total thickness is made different between the bonding portion and the peeling portion, the appearance of the hologram layer is different between the bonding portion and the peeling portion. Then, since the boundary between the bonded portion and the peeled portion clearly appears in the appearance, the degree of freedom of the gloss pattern on the hologram layer is impaired. In addition, when it is possible to visually recognize the boundary between the bonded portion and the peeled portion, imitation is facilitated, and it is difficult to provide a sufficient authentication function.

  An object of the present invention is to provide a tamper-proof seal having a function of determining authenticity at the time of reattachment while ensuring the degree of freedom of the gloss pattern of the hologram layer.

  The structure of the present invention for achieving the above object is a tamper-proof seal that prevents tampering by making the user recognize that it has peeled off after being attached to an object, and is brittle A base material layer, a release layer formed with a release material under the base material layer, and an adhesive layer formed with an adhesive so as to cover the release layer under the base material layer. A tamper-proof seal comprising: a hologram layer formed of a hologram foil under the adhesive layer; and an adhesive fixing layer formed under the hologram layer and adhesively fixed to the object. .

  In addition, when it is peeled off after being attached to an object, it is a tamper-proof seal that prevents tampering by making the user recognize that it has been peeled off, the base material layer having brittleness, and the base material layer A release layer formed of a release material at the bottom of the adhesive, and an adhesive adhesive formed of an adhesive and a pressure-sensitive adhesive having a higher adhesive strength than the adhesive so as to cover the release layer below the base material layer A tamper-proof comprising: a layer; a hologram layer formed of a hologram foil under the adhesive adhesive layer; and an adhesive fixing layer formed under the hologram layer and adhesively fixed to the object. It is a seal.

  As described above, by configuring the tamper-proof seal so that the hologram foil is laminated between the adhesive layer or the adhesive pressure-sensitive adhesive layer and the pressure-sensitive adhesive layer, the degree of freedom of the pattern of the hologram layer can be ensured. Further, since the boundary between the bonded portion and the peeled portion of the hologram layer is not known before the seal peeling operation, imitation is difficult, and the seal can have a sufficient authenticity determining function.

The figure which shows the state before peeling of the tamper-proof seal of this embodiment. The figure which shows the state at the time of peeling of the tamper-proof seal of this embodiment. The figure which shows the state after peeling of the tamper-proof seal of this embodiment.

[Configuration of tamper-proof seal 1]
The configuration of this embodiment will be described with reference to the drawings. FIGS. 1A and 1B are views showing a state before peeling of the tamper-proof seal of this embodiment, where FIG. 1A is a top view and FIG. 1B is a cross-sectional view taken along line AA.

  As shown in FIG. 1, the tamper-proof seal 1 includes a base material layer 11, a release layer 12, an adhesive layer 13, a hologram layer 14, an adhesive fixing layer 15, and a separator 16. The thickness of each layer is 10 to 500 μm for the base material layer 11, 0.1 to 50 μm for the release layer 12, 1 to 100 μm for the adhesive layer 13, 0.1 to 20 μm for the hologram layer 14, and 1 to 100 μm for the adhesive fixing layer 15. Is preferred.

  The base material layer 11 is a base material of the tamper-proof seal 1 having a multilayer structure, and is made of a material having a brittleness and a transparent or semi-transparent material having a thickness of 1 to 300 μm so that the polarization of the hologram can be visually recognized. The Examples of the brittle material include TAC (triacetate film) and OPS (polystyrene film) that is easily dissolved in a solvent. Moreover, it is not restricted to this, Acrylic, cycloolefin, polycarbonate, PET, OPP, CP may be sufficient.

  The release layer 12 is formed of a release material on which a design such as a pattern or a character is applied below the base material layer 11. Here, as shown in FIG. 1B, in the tamper-proof seal 1, the lower part of the release layer 12 becomes the release part 21 that is separated from the base material layer 11. The peeling part 21 forms a peeling pattern 21M as described later. The portion without the release layer 12 becomes a non-release portion 22 that does not peel from the base material layer 11. In this embodiment, an example in which the release layer 12 is partially provided is given, but the present invention is not limited to this. For example, the release layer 12 may be provided on the entire lower surface of the base material layer 11.

  The adhesive layer 13 has an adhesive and effective activity at the initial stage of coating such as an ultraviolet curable type, an electron beam curable type, a thermosetting type, and a two-component reactive type so as to cover the release layer 12 below the base layer 11. It is formed of various adhesives that give energy or change to an adhesive (solid) by aging.

  The hologram layer 14 is formed as a hologram foil below the adhesive layer 13. This hologram layer may have a polarizing property made of cholesteric liquid crystal. Since the hologram foil has glossy characters and patterns, the hologram foil passes through the base material layer 11 when the tamper-proof seal 1 before peeling is viewed from the top as shown in FIG. appear.

  The adhesive fixing layer 15 is formed below the hologram layer 14. Due to the presence of the adhesive fixing layer 15, the tamper-proof seal 1 can be adhesively fixed to the object. The adhesive fixing layer 15 is adhesively fixed to the object after being peeled off from the separator 16 as a release layer.

  The hologram layer 14 is formed by transferring a hologram foil as an intermediate between the adhesive layer 13 and the adhesive fixing layer 15.

[Use status of tamper-proof seal 1]
FIG. 2 is a view showing a state of the tamper-proof seal according to this embodiment at the time of peeling, in which (a) is a perspective view during peeling, and (b) is a top view showing a pattern immediately after peeling. 3A and 3B are views showing a state after the tamper-proof seal of this embodiment is peeled off. FIG. 3A is a cross-sectional view of this embodiment, and FIG. 3B is a cross-sectional view of a modification.

  As shown in FIG. 2A, once the tamper-proof seal 1 affixed to the object B is peeled off, the base material side sheet 1a having the base material layer 11 and the peeling pattern 21M formed by the peeling portion 21 are formed. To separate. Specifically, as shown in FIG. 3A, in the peeling portion 21, the adhesive layer 13 is peeled from the peeling layer 12, and the peeling pattern 21 </ b> M remains on the object B. On the other hand, the non-peeling portion 22 is brought together with the hologram layer 14 and the adhesive fixing layer 15 to the substrate side sheet 1a side. This is because the adhesive force of the adhesive layer 13 to the base material layer 11 is stronger than the adhesive force of the adhesive fixing layer 15 to the object B.

  As shown in FIG. 2B, when all the tamper-proof seal 1 is peeled off from the object B, the hologram layer 14 is formed on the object B as a peeling pattern 21M in the portion of the base sheet 1a where the peeling portion 21 is present. Remaining. In addition, although the hologram layer 14 remains in the non-peeling part 22 of the base material side sheet 1, the hologram is deteriorated as compared with that before peeling.

  Thus, if it peels after sticking to a target object, it can make a user recognize that it peeled by the peeling pattern 21M remaining.

  The above configuration has the following effects.

  Since the base material layer 11 has brittleness, the surface state of the base material layer 11 collapses when the seal is peeled off. Therefore, once the seal is peeled off, the seal surface does not return to the original state. For this reason, even if it is a case where a seal | sticker is once peeled and reapplied, since the surface state of the base material layer 11 has collapsed, it cannot restore | restore. For this reason, it can be easily visually recognized that the re-sticking is performed.

  Once the seal is peeled off, the hologram layer 14 is divided by the peeling portion 21 and the peeling portion 22 although the gloss remains. For this reason, even if the peeled base material side sheet 1a is returned to the original object B, the divided part can be easily visually recognized, and the peeled trace becomes clear. For this reason, a high falsification preventing function can be exhibited.

  The adhesive layer 13 covers the release layer 12, and the hologram layer 14 is formed between the adhesive layer 13 and the adhesive fixing layer 15. For this reason, the hologram layer 14 can be flat regardless of the shape of the release layer 12. For this reason, it is not necessary to give the hologram layer 14 the uneven | corrugated pattern regulated by the shape of the other layer previously, and the freedom degree of the pattern of the hologram layer 14 is not impaired.

  Further, by using the flat hologram layer 14, the boundary between the peeling portion 21 and the non-peeling portion 22 does not appear on the appearance before peeling. Then, since the boundary between the peeling part 21 and the non-peeling part 22 cannot be visually recognized, it is difficult to imitate the tamper-proof seal.

  As described above, according to the present embodiment, the shape of the brittle base material layer 11 and the hologram layer 14 is broken once the base material side sheet 1a is peeled off. I cannot see a glossy pattern. For this reason, the tamper-proof seal provided with the authenticity determination function at the time of reattachment can be provided. Furthermore, since the hologram layer 14 can be flat, the degree of freedom of the gloss pattern of the hologram layer 14 can be ensured.

  In the present embodiment, the tamper-proof seal 1 has the adhesive layer 13, but is not limited thereto. For example, as shown in FIG. 3B, an adhesive pressure-sensitive adhesive layer 13A formed of an adhesive and a pressure-sensitive adhesive having a higher adhesive strength than the adhesive so as to cover the peeling layer 12 below the base material layer 11. It is good also as the tamper-proof seal | sticker 2 which has these. In this case, when the base material side sheet 2a is peeled, the adhesive pressure-sensitive adhesive layer 13A also peels the peelable layer 12 from the base material layer 11 by the adhesive force of the pressure-sensitive adhesive. In this case, the surface of the release pattern 21 </ b> M becomes a part of the release layer 12.

  INDUSTRIAL APPLICABILITY The present invention can be used for a tamper-proof seal configured so as not to return to the state before application when being peeled after being applied to an object.

B ... Object 1 ... Anti-tampering seal 1a ... Base material side sheet 2 ... Anti-tampering seal 2a ... Base material side sheet 11 ... Base material layer 12 ... Release layer 13 ... Adhesive layer 13A ... Adhesive adhesive layer 14 ... Hologram layer 15 ... Adhesive fixing layer 16 ... Separator 21 ... Peeling part 21M ... Peeling pattern 22 ... Non-peeling part

Claims (2)

It is a tamper-proof seal that prevents tampering by configuring it so that the user can recognize that it has peeled off after being attached to the object,
A base material layer having brittleness;
A release layer formed of a release material below the base material layer;
An adhesive layer formed with an adhesive so as to cover the base layer and the release layer;
A hologram layer formed of a hologram foil under the adhesive layer;
An adhesive fixing layer formed under the hologram layer and adhesively fixed to the object;
A tamper-proof seal characterized by comprising: It is a tamper-proof seal that prevents tampering by configuring it so that the user can recognize that it has peeled off after being attached to the object,
A base material layer having brittleness;
A release layer formed of a release material below the base material layer;
An adhesive pressure-sensitive adhesive layer formed of an adhesive and a pressure-sensitive adhesive stronger than the adhesive so as to cover the release layer at the bottom of the base material layer;
A hologram layer formed of a hologram foil below the adhesive adhesive layer;
An adhesive fixing layer formed under the hologram layer and adhesively fixed to the object;
A tamper-proof seal characterized by comprising:

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