JP3830232B2 - Seal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seal seal, and more particularly, to a seal seal suitable for electrically detecting opening after sealing.
[0002]
[Prior art]
The development of computer technology in recent years is remarkable, and its application is expanding. For example, it is also applied to the control of the pachinko machine. In such a game apparatus, there arises a problem that a ROM or the like that is being used is replaced by a customer or illegally.
Therefore, in order to prevent such remodeling, it is performed to seal a main part such as a ROM or a case storing a board on which those electronic parts are mounted. Recently, as a sealing seal for that purpose, There has also been proposed a device incorporating a conductive member that can be easily detected electrically when the attached material is peeled off (Japanese Patent Laid-Open No. 8-221676).
[0003]
[Problems to be solved by the invention]
However, since the above-mentioned sealing seal uses a combination of a strong adhesive and a weak adhesive, the manufacturing method thereof is complicated, and there is a drawback that the cost is likely to increase.
Therefore, as a result of intensive studies to solve the above-described drawbacks, the present inventors provide an electric circuit having one or more cuts on the surface of a brittle film, a ductile film, or a film substrate having one or more cuts. Thus, it is not necessary to coat two or more kinds of adhesives having different adhesive strengths, so that it can be manufactured very easily, and it can be made a seal seal that is easy to detect the electrical opening, and the present invention has been achieved. did.
Accordingly, an object of the present invention is to provide a sealing seal excellent in manufacturing suitability and easy to detect electrically.
[0004]
[Means for Solving the Problems]
The object of the present invention is to provide a film substrate (1) having an electric circuit (10) on one surface, and at least a surface of the film substrate (1) having the electric circuit (10). was, a sealing seal having an adhesive for adhering the adherend (13), said film substrate (1) is brittle film, with a film having a ductile film or one or more cuts, said The electric circuit (10) is formed by laminating a metal thin film and a thin film plastic film, and the electric circuit (10) itself is provided with one or more cuts to ensure conduction and to be easily cut. And achieved with a sealed seal.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The film substrate in the present invention can be appropriately selected from known plastic films. When using a film that is neither brittle nor ductile as these film bases, in order to easily break or break at the time of peeling after sticking, have one or more cuts in advance. is required. The number and shape of the cuts may be appropriately designed depending on the material and thickness of the film substrate used, the shape of the seal seal, and the like, but the depth of the cut is preferably equal to or greater than the thickness of the film substrate.
Here, “above” is a description that also considers an electric circuit laminated on a film substrate and an adhesive layer, as will be described later.
[0006]
Examples of the brittle film include vinyl chloride resin, acrylic resin, and acetate resin films. In the present invention, from the viewpoint of water resistance, vinyl chloride resin and acrylic resin films are particularly preferable.
Examples of the ductile film include polyethylene resin, polypropylene resin, soft vinyl chloride resin, vinylidene chloride resin, and butadiene rubber film.
These films are preferably thin and weak as long as handling properties are not hindered.
[0007]
The electric circuit in the present invention is provided by attaching a patterned metal thin film.
In adhering the patterned metal thin film, in order to ensure the handling property, first, a thin plastic sheet with an adhesive to produce a laminated sheet bonded to a metal thin film, it to a desired pattern Cut. In this case, as is well known, the adhesive layer surface of the release sheet provided with the adhesive layer may be adhered to the back surface of the plastic sheet.
[0008]
In any case, in practice, it is preferable to provide a release sheet on the adhesive surface of the sealing sheet to be adhered to the adherend.
Therefore, when an electric circuit is provided directly on one surface of the film substrate or an electric circuit is provided by adhering a patterned metal thin film through an adhesive, the film provided with the electric circuit It is preferable to provide a release sheet on the entire surface of the substrate via an adhesive layer.
[0009]
The adhesive used in producing the seal seal of the present invention is not easily peeled off, and as long as it has adhesive strength to such an extent that the film substrate and the electric circuit are damaged when trying to peel off forcibly, usually The adhesive may be other pressure-sensitive adhesives or heat-sensitive adhesives, and is not particularly limited.
In addition, as a peeling sheet, the well-known thing which apply | coated peeling agents, such as a silicone resin, to polyethylene laminated paper and a plastic film can be used.
[0010]
【Example】
EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, this invention is not limited by this.
FIG. 1 is a schematic plan view and a schematic side view corresponding to the seal seal of the present invention. In the figure, reference numeral 1 is a brittle film substrate, 10 is an electric circuit, and 20 is a release sheet. FIG. 2 is a cross-sectional configuration diagram of the seal seal of FIG. In the figure, reference numeral 1 is a brittle film substrate comprising a vinyl chloride brittle film 2 having a thickness of 50 μm and an acrylic adhesive layer 3 having a thickness of 25 μm, and 10 is a thin terephthalate sheet having a thickness of 25 μm. An acrylic pressure-sensitive adhesive having a thickness of 25 μm, which has an aluminum thin film 11 of 9 μm on one surface of the substrate sheet 12 via an adhesive (not shown) and is adhered to the adherend on the other surface. An electric circuit 20 having the agent layer 13 is a release sheet. The electrical circuit 10 is provided with a notch 14 so that the circuit is cut by a slight force.
[0011]
When this sealing seal is used, after peeling off the release sheet 20, the adhesive on the surface of the electric circuit is attached to the adherend to be sealed, and then the electric circuit terminal is connected to the electric detector. good. Even if an attempt is made to peel off the sealing seal after pasting, the strength of the brittle film 2 is weak, so that the film is broken and / or the electric circuit is cut from the notch 14, so that the detector is abnormal. It is impossible to remove without detection.
[0012]
FIG. 3 is a plan view in the case where a normal film such as a polyethylene terephthalate film is used as a film base instead of a brittle film. Although a polyethylene terephthalate film having a thickness of 38 μm was used as the film substrate, in this case, not only the notch 14 is provided in the electric circuit, but also the notch 4 greater than the thickness of the film substrate is provided in the film substrate. When the cut of the film base extends to the electric circuit, it is not necessary to provide another cut in the electric circuit.
[0013]
From the standpoint of facilitating handling when the release sheet is peeled off, it is preferable to prevent the notch 4 from reaching the edge of the film substrate as shown in FIG. . In this case, since there is a possibility that the film base material does not break quickly when the attached seal sticker is peeled off, as shown in FIG. 5, a small notch that reaches the edge of the film base material separately, It is preferable to provide at a location different from the notch.
[0014]
In this way, when the release sheet is peeled off, the film base material is accidentally destroyed, and further, the accident of cutting the electric circuit can be prevented. Is triggered by a small notch at the edge of the film substrate, and the film substrate is easily broken.
In order to prevent the circuit from being seen through the film substrate, an opaque film substrate may be used, or an opaque paint may be applied to the surface of the film substrate.
[0017]
【The invention's effect】
Since the sealing seal of the present invention does not need to be applied with a plurality of adhesives having different adhesive strengths, its production can be easily performed based on the prior art.
[Brief description of the drawings]
FIG. 1 is a conceptual plan view and a corresponding side conceptual view showing an example using a brittle film in a seal seal of the present invention.
FIG. 2 is a conceptual cross-sectional view of the seal seal of FIG.
FIG. 3 is a conceptual plan view showing an example in which a cut film is used in the seal seal of the present invention.
4 is a partially enlarged view of a cut end portion of FIG. 3;
5 is a partially enlarged view showing another example of the cut end portion of FIG. 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Film base material 2 Film 3 Adhesive layer 4 The notch provided in the film base material 5 The film base material which has a notch 10 Electric circuit 11 Aluminum thin layer 12 Thin base material sheet 13 Adhesive layer 14 Aluminum thin layer provided Cut 20 Release sheet

Claims (4)

Film substrate on one surface with an electric circuit (10) (1), and, provided on the surface with at least an electrical circuit (10) of said surface of said film substrate (1), the adherend adhesion A sealing seal having an adhesive (13) to perform, wherein the film substrate (1) is a brittle film, a ductile film or a film having one or more cuts, and the electric circuit (10) is a metal A sealing seal characterized in that a thin film and a thin film plastic film are laminated, and the electrical circuit (10) itself is provided with one or more cuts to ensure conduction and to facilitate cutting . The cut of the film having the cut is provided so as not to reach the edge of the film base (1), and a small cut is separately provided at a location different from the cut of the edge of the film base (1). The sealing seal according to claim 1, which is provided. The sealing seal according to claim 1 or 2, wherein a release sheet (20) is provided on a surface of an adhesive (13) that adheres to the adherend. The sealing seal | sticker described in any one of Claims 1-3 whose depth of the notch | incision provided in the said film equipment (1) is more than the thickness of a film base material (1).

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