JP7147308B2 - IC tag label sheet and IC tag label - Google Patents

Description

The present invention relates to IC tag labels. More particularly, the present invention relates to an IC tag label and an IC tag label sheet used therefor, which are attached to cork stoppers of bottles such as high-end wine to detect fraudulent actions such as replacement of contents.

Cork-sealed bottles of fine wines and whiskeys, or premium beverages and condiments, are often fraudulently replaced with cheaper ones. For example, there is a misuse of a tool to remove the contents of a bottle by inserting an injection needle into the cork without removing the cork.

As a technique for preventing such fraudulent acts, it is conceivable to install a sensor that detects insertion of an injection needle into the mouth of a bottle that is sealed with a cork stopper. As such a detection sensor, a configuration has been considered in which wiring is densely formed in a single stroke so that the wiring is disconnected when an injection needle is inserted, and the disconnection is detected.

As an example of such a configuration, FIG. 2 shows a detection part of a detection sensor comprising a circuit in which unicursal wiring is densely formed.
FIG. 2(a) shows a circuit drawn in a rectangular shape with a single stroke, and shows a case where there is a portion where no circuit is formed. If an injection needle is inserted into this portion, there is a problem that it cannot be detected.
FIG. 2(b) shows an example of a detection section composed of a rectangular circuit formed using a double-sided board. This shows a general crimping portion with a diameter of about 5 mm for connecting circuits on the front and back surfaces of a double-sided board. If an injection needle is inserted into this portion, it cannot be detected. It is the same even if there is a bridging portion or a through hole for crossing the circuit instead of the crimping portion.
FIG. 2(c) shows a case where a rectangular circuit is drawn in a single stroke within a circular area. In this case, since the area of the circuit adjacent to the end of the circular area increases at a portion away from the center, there is a possibility that the injection needle will not be detected if it is inserted into this portion.

On the other hand, as a prior art that is attached to a cork stopper that seals the mouth of a bottle of high-end wine to detect fraudulent actions such as replacement of contents, for example, a label that has both an opening detection function and an RFID function has been disclosed. (Patent Document 1). A label capable of separating at least an RFID function antenna forming portion from an object to be adhered when adhered to the object to be adhered, and is sealed by being adhered to a mouthpiece of a high-grade wine bottle or the like. The label includes an affixing portion having an opening detection function for detecting that the label has been opened when the label is opened, and an upright portion having an RFID function. The sticking portion and the standing portion of this label are laminates in which a release sheet, an adhesive layer and a label substrate are laminated in this order. A folding line is formed in the label substrate at the boundary between the sticking portion and the standing portion. A cut line is formed in the release sheet. Therefore, the label is characterized in that it is provided with locking means for holding the upright portion raised by folding the label along the folding line in a state in which the sticking portion is stuck and sealed to the article. By standing up on the surface of an adherend such as a wine bottle, the standing portion is separated from the surface, which is an excellent technology that facilitates communication with an external device such as a reader/writer.

However, this technology is a technology that makes it possible to detect that the seal has been opened.
It is different from fraud detection technology that replaces it with a cheap one.

JP 2017-78984 A

In view of the above circumstances, the present invention provides an IC tag label capable of detecting the fraudulent act of extracting the contents and replacing the contents by inserting an injection needle into the cork that seals the bottle. is the subject.

As a means for solving the above-mentioned problems, the invention according to claim 1 of the present invention provides an IC tag label capable of detecting that the mouth of a bottle sealed with a cork stopper has been punctured by a rod-shaped object or tubular object. a sheet,
An antenna capable of wireless communication with an external device, a detection unit for detecting that the cork has been punctured by a rod-shaped object or a tubular object, and an IC chip are provided on the substrate of the IC tag label sheet,
The detection unit and the antenna are electrically connected to the IC chip, respectively.
The detection part has two conductor circuits with a line/space of 0.30 mm or less/0.30 mm or less formed in an arbitrary shape by a single stroke, and the line part of one conductor circuit and the other conductor circuit. A space portion is provided so as to overlap each other in a plan view with an insulating layer interposed therebetween, and does not include millimeter-order electrodes, spaces, and through holes,
The IC chip is an IC tag label sheet characterized by having a function of detecting disconnection or an increase in resistance value of the conductor circuit of the detection portion.

Further, the invention according to claim 2 is the IC tag label sheet according to claim 1, wherein the shape is spiral.

According to a third aspect of the invention, there is provided an IC tag label comprising the IC tag label sheet according to the first or second aspect.

In the IC tag label sheet and the IC tag label of the present invention, the detection part is composed only of a conductive circuit having a line/space of 0.30 mm or less, which is formed in an arbitrary shape by a single stroke, and thus has a diameter of about 1.00 mm. When the injection needle is used to pierce the cork of the mouth portion of the bottle, the conductive circuit is reliably disconnected. Therefore, since the IC chip can detect disconnection of this conductor circuit, it is possible to read by an external device whether or not the cork stopper of the mouth portion of the bottle has been punctured.

FIG. 2 is an explanatory top view illustrating the form of the circuit of the detection section of the IC tag label sheet of the present invention; FIG. 4 is an explanatory top view illustrating the form of a circuit of a detection unit of a conventional IC tag label sheet;

<IC tag label>
The IC tag label sheet of the present invention will be described with reference to FIG.
The IC tag label sheet 10 of the present invention is an IC tag label sheet capable of detecting that the mouth of a bottle sealed with a cork is punctured by a rod-shaped object or tubular object.

As shown in FIG. 1(a), the IC tag label sheet 10 of the present invention is provided with an antenna 3 capable of wireless communication with an external device such as a reader/writer, and a bottle cap by covering it. It comprises a detecting section 1 for detecting that a rod-shaped object such as an injection needle or a tubular object has been punctured into a cork stopper, and an IC chip 2 to which the antenna 3 and the detecting section 1 are respectively connected.

The detection part 1 is composed of a conductor circuit having a line/space of 0.30 mm or less, which is formed in an arbitrary shape on the base material 5 of the IC tag label sheet 10 by drawing with a single stroke. The conductive circuit does not include a millimeter-order portion, an electrode, or a through hole where no circuit is formed. If there is a millimeter-order portion where no circuit is formed, an electrode, or a through-hole, even if the injection needle punctures the portion, the electric resistance value is not affected at all. Here, the millimeter order means 1 mm to 9 mm.

The IC chip 2 also has a measurement function for detecting disconnection of the conductor circuit of the detector 1 or an increase in the electrical resistance of the conductor circuit.

The detection part 1 of the IC tag label sheet 10 having such a structure is adhered to cover the stopper part of the bottle. By providing an adhesive layer on the back surface of the detection part 1 of the IC tag label sheet 10, the IC tag label sheet 10 can be attached to an adherend. The inside (inner side) of the mouth portion of the bottle is sealed with a cork stopper. Therefore, when the cork is punctured by a rod-shaped object such as an injection needle or a tube-shaped object, the detection unit 1 is always punctured, and disconnection of the conductor circuit of the detection unit 1 or an increase in the resistance value of the conductor circuit can be detected. can.

Further, in the IC tag label sheet 10 of the present invention, the detection part is formed in an arbitrary shape by unicursal writing, and the two conductor circuits having a line/space of 0.30 mm or less are connected to the line part of one of the conductor circuits. and the space portion of the other conductor circuit may be provided so as to overlap each other in a plan view with an insulating layer interposed therebetween. By adopting such a configuration, it is possible to make it more difficult for the cork to be punctured by a rod-shaped object such as an injection needle having a diameter of less than 0.30 mm or a tubular object aiming at the space portion of the detection section. can.

(detector)
The detection unit 1 used in the IC tag label sheet 10 of the present invention will be described with reference to FIG. 1(b). The detection unit 1 exemplified in FIG. 1B is a line (wiring width a of the conductor circuit of the detection unit 1)/space (the separation distance of the wiring of the conductor circuit of the detection unit 1) formed concentrically by a single stroke Both b) consist of a conductor circuit of 0.30 mm or less. For example, by setting the line/space=0.30 mm/0.30 mm, it is possible to reliably break the cork stopper of the bottle by puncturing the cork stopper of the bottle using an injection needle with a diameter of 1.00 mm.

The cork stopper has a length of about 30 mm from the top of the opening of the bottle toward the bottom of the bottle. Since it is difficult to pierce the cork stopper to a depth of 30 mm by piercing a thin injection needle with a diameter of 1.00 mm or less over its length, the line/space of the conductor circuit of the detection unit 1 should be 0.30 mm or less. /0.30 mm or less, it is possible to detect whether or not the cork has been punctured. In the case of an injection needle with a thicker external shape, it is sufficient to determine a line/space value corresponding to it so that the needle can be reliably broken by puncturing.

Regarding the thickness of the injection needle, there is a needle gauge standard. For example, as a standard for products using SUS316 stainless steel, there is a standard for an outer diameter of 0.10±0.02 mm to 2.70±0.03 mm. Their corresponding inner diameters range from 0.03±0.02 mm to 2.40±0.03 mm. A needle used for blood transfusion has, for example, an outer diameter of 1.20 mm and an inner diameter of 0.94 mm. As the thickness of the needle becomes thinner, the cross-sectional area rapidly decreases. For example, if the cross-sectional area of the inner diameter of a needle with an outer diameter of 1.20 mm is 100%, it is 76% with an outer diameter of 1.08 mm, 9% with an outer diameter of 0.51 mm, and 0.1% with an outer diameter of 0.10 mm. Become. Therefore, a needle with an outer diameter of 1 mm or less lacks strength enough to puncture a cork, and it is difficult to secure a flow rate.

For example, when a needle with an outer diameter of 1 mm is inserted into the detection unit 1 made of a conductor circuit with a line/space of 0.50 mm/0.50 mm, the detection unit 1 (1) the conductor circuit of the detection unit 1 or (2) half of the wiring of the adjacent conductor circuit of the detection unit 1 is broken, or (3) an intermediate state between them.

In the above (1), one portion of the one-stroke conductor circuit is cut. Therefore, the electric resistance value of the detection unit 1 becomes infinite. In (2), the line width is reduced to 1/2 at one point in the single-stroke conductor circuit. The electric resistance value of that portion is doubled. Puncture can be detected by making it possible to detect an increase in the electrical resistance value of a part of the entire conductor circuit drawn in one stroke. For example, it is assumed that the electric resistance value of the entire conductive circuit drawn in a single stroke is 100Ω, and the conductive circuit is formed by connecting 100 blocks in series, each block having a resistance of 1Ω. When the electrical resistance value of one of the blocks becomes 2Ω, the electrical resistance value of the entire conductor circuit increases from 100Ω to 101Ω. A detection circuit that can detect this 1% increase is sufficient. If a circuit capable of detecting a slight increase in electrical resistance below that is provided, it can be detected.

Further, when a needle with an outer diameter of 1 mm is inserted into the detection unit 1 consisting of a conductor circuit with a line/space of 0.30 mm/0.30 mm, the conductor circuit is always disconnected.

The size of the detection unit 1 should be at least a size that can cover the cork stopper of the mouth portion of the bottle. As the shape of the detection unit 1, a concentric circle shape formed by a single stroke has been described, but it is not necessary to limit the shape to a concentric circle shape. Since the mouth portion of the bottle is circular, the outer shape is preferably circular, but it is not necessary to limit the outer shape to circular. For example, in the case of a detection unit having a circular outer shape, a method of forming a conductor circuit drawn in a single stroke may be a rectangular shape. It is not limited to a rectangular shape, and may be of any shape. good. In the case of a rectangular shape, when the line/space of the straight part is 0.30 mm/0.30 mm, the line/space of the part bent at 90° becomes 0.42 mm/0.42 mm, which is about 1.4 times. . Therefore, in order to secure 0.30 mm/0.30 mm at the portion bent at 90°, the straight portion should be about 0.21 mm/0.21 mm.

(IC chip)
The IC chip 2 used in the IC tag label sheet 10 of the present invention must be capable of wireless communication with an external device such as a reader/writer. In addition, it is necessary to be able to detect disconnection (infinite electrical resistance value) of the detection section 1, which is a conductor circuit drawn in one stroke. In addition, it is desirable to have a function capable of detecting an increase in the electrical resistance value of the detection section 1 . As a detectable function, it is desirable to be able to detect an increase in the electrical resistance value on the order of 1% or to detect it with a higher sensitivity.

When the IC chip 2 detects disconnection or an increase in the electrical resistance value of the detection unit 1, the IC chip 2 has a function of transmitting the disconnection or the increase in the electrical resistance value from the antenna 3 to an external device such as a reader/writer. there is

(Base material)
The material and shape of the substrate 5 of the IC tag label sheet 10 of the present invention are not particularly limited. As the material of the base material 5, for example, a resin film such as PET (polyethylene terephthalate) can be suitably used, and a paper-based material with enhanced mechanical strength and water resistance can also be used. Considering that the line/space of the detection unit 1 is 0.30 mm or less/0.30 mm or less, it is better to use a resin film with good surface flatness and small surface roughness.

(antenna)
The required number of turns of the antenna 3 used in the IC tag label sheet 10 of the present invention is determined by the frequency of radio waves used for wireless communication with an external device. In order to secure the required communication distance, the size of the antenna 3 may be determined according to the radio wave output and reception sensitivity of the external device.

(IC tag label)
The IC tag label sheet 10 produced as described above has an oversheet laminated on its front and back surfaces, and further has an adhesive layer on at least one side thereof, whereby an IC tag label that can be attached to an adherend such as a bottle cap. becomes. First, an IC tag label sheet 10 having multiple faces is manufactured, and an adhesive layer and release paper are laminated on at least one side of the sheet 10 . After that, through a cutting process, individualized IC tag labels are completed. By peeling off the release paper of the individualized IC tag label, the IC tag label can be attached to an adherend.

<Manufacturing method of IC tag label sheet>
Next, a method for manufacturing the IC tag label sheet 10 of the present invention will be described.
The manufacturing method of the IC tag label sheet 10 of the present invention is the same as that of the IC tag label sheet in which the IC chip 2 without the detection section 1 and the antenna 3 are provided on the substrate 5 .

(Step 1)
First, a material is prepared by bonding a metal foil such as an aluminum foil or a copper foil to at least one side of the base material 5 .

(Step 2)
Next, the detection part 1 and the antenna 3 are formed at the same time by etching the metal foil by photolithography. Connection electrodes for the detection unit 1 and the IC chip 2 and for the antenna 3 and the IC chip 2 can also be formed at the same time.

A bridge portion is formed at a desired position of the antenna 3 . This bridge portion is required to provide two terminals of the antenna 3 on the same plane when the antenna 3 consists of a conductor pattern with two or more turns. That is, starting from one terminal of the antenna 3, a conductor pattern is formed inside in a coil shape. It must be connected to the conductor pattern of the formed antenna 3 so as not to short-circuit.

For this purpose, (1) a jumper wire is used on the same plane as the antenna 3 to connect the rearmost part of the conductor pattern to another terminal of the antenna 3, and (2) a A method of connecting with a conductor pattern formed on the back surface of the base material 5 using the formed crimped portion and a crimped portion formed at a portion near another terminal of the antenna 3, and (3) the rearmost portion of the conductor pattern. to another terminal of the antenna 3. An insulating layer is formed at a portion where the conductor pattern extending from the antenna 3 intersects with the already formed conductor pattern of the antenna. There is a way to connect the tail end of the pattern to the other terminal of the antenna 3 . Here, the case (2) will be described. The caulking portion refers to conducting the conductor patterns formed on the front and back surfaces by means of metal rivets. The bridge part means that a conductor pattern between two conductor patterns on the same plane is not short-circuited by a jumper wire or the like, and conducts.

As a method of establishing conduction between the front and back surfaces via the crimped portion, there is a method of crimping a desired position with a rivet. Conduction can be achieved by caulking the conductor patterns formed on the front and back surfaces of the sheet using metal rivets, eyelets, or the like. Alternatively, holes may be formed at desired positions and filled with through-hole plating or conductive ink.

(Step 3)
Next, the IC chip 2 is adhered and fixed to the base material 5 . At this time, the connection electrode portion of the IC chip 2 with the detecting portion 1 and the electrode on the detecting portion 1 side may be adhered with a conductive adhesive. Similarly, the connection electrode portion of the IC chip 2 with the antenna 3 and the electrode on the antenna 3 side may be bonded with a conductive adhesive. Alternatively, after the IC chip 2 is die-bonded on the base material 5, the electrodes of the detection unit 1 and the antenna 3 may be connected to the electrodes of the IC chip by wire bonding or using conductive ink. good. Finally, resin molding may be performed on the IC chip 2 .

<Manufacturing method of IC tag label>
Using the IC tag label sheet 10 produced above, an oversheet is laminated on the front and back surfaces thereof with an adhesive layer interposed therebetween, and an adhesive layer is further formed on the oversheet on the back side (the side where the IC chip 2 is not provided). After forming, an IC tag label can be produced by laminating a release sheet. A pattern layer may be formed on the oversheet as required. Further, a protective layer may be laminated on the pattern layer.

Usually, the IC tag label sheet 10 is manufactured in a multi-sided state on a large sheet. A tag label is manufactured.

Next, examples of the present invention will be described.

<Example 1>
(Base material)
A PET (polyethylene terephthalate) film was used as the substrate. A double-sided film was prepared by bonding aluminum foils with a thickness of 10 μm and 18 μm to the front and rear surfaces of a PET film with a thickness of 38 μm, respectively.

(IC chip)
As an IC chip, VaultIC154 manufactured by Wisekey and having a disconnection detection function was prepared.

(Etching processing of aluminum foil)
First, etching was performed on the 10 μm aluminum foil side. An etching resist that can be peeled off with a solvent was screen-printed on the remaining portion of the wiring so that a wiring with a width of 0.2 mm connecting the two through-holes was formed. In order to volatilize and dry the solvent content of the etching resist, it was dried by heating in a clean oven.

Next, an etching resist was formed on the side of the aluminum foil of 18 μm so as to cover the portion where the unicursal spiral conductive circuit and the antenna were to be formed. Pattern formation of the etching resist was performed by screen printing. After printing the etching resist, it was dried by heating in a clean oven in order to volatilize the solvent of the etching resist.

Next, the aluminum foil was etched using a phosphoric acid-based etchant for aluminum until a wiring connecting two through holes of 10 μm on the aluminum foil side was formed.

Next, an etching resist was coated on the wiring connecting the two formed through holes and dried to prevent further etching.

Next, the detection part and the antenna were formed by additionally etching the aluminum foil on the 18 μm aluminum foil side.

Next, the etching resist was stripped by immersing the etching resist in a solvent capable of dissolving and stripping and shaking.

Finally, the aluminum wirings formed on the front and back surfaces were electrically connected by crimping the front and back surfaces with rivets made of aluminum.

As described above, the patterning of the aluminum foil on both the front and back sides is completed, and on one side, a detection part consisting of spiral wiring with a line/space of 0.20 mm/0.20 mm and a rectangular coil antenna are formed. , and on the other surface, a wiring was formed to connect the through-holes with a line width of 0.20 mm.

(Mounting of IC chip)
The IC chip used has a pair of electrodes for detecting disconnection and a pair of electrodes connected to an antenna to enable wireless communication.

An IC tag label sheet was completed by bonding the detection part to the electrode of the IC chip for detecting disconnection and the antenna to the electrode of the IC chip to be connected to the antenna using a conductive adhesive.

<Example 2>
A PET (polyethylene terephthalate) film was used as the substrate. A single-sided film was prepared by bonding an aluminum foil with a thickness of 10 μm to one side of a PET film with a thickness of 50 μm.

(IC chip)
As an IC chip, NTAG213 TT manufactured by NXP, which has a disconnection detection function, was prepared.

(Etching processing of aluminum foil)
Next, an etching resist was formed on an aluminum foil of 10 μm so as to cover the portion where the unicursal spiral conductive circuit and the antenna were to be formed. Pattern formation of the etching resist was performed by screen printing. After printing the etching resist, it was dried by heating in a clean oven in order to volatilize the solvent of the etching resist.

Next, an aluminum foil was etched using a phosphoric acid-based etchant for aluminum. First, a detection part and an antenna were formed by etching a 10 μm thick aluminum foil. After that, the etching resist was peeled off by immersing and shaking in a solvent of the etching resist.

Next, on the back surface opposite to the aluminum foil side, a wiring for connecting the two through holes was formed by screen printing with conductive ink and drying.

As described above, the patterning of the aluminum foil on both the front and back sides is completed. A wiring was formed to connect between the 20 mm through holes.

Otherwise, the IC tag label sheet was completed in the same manner as in Example 1.

<Evaluation>
Using the IC tag label sheets produced in Examples 1 and 2, an oversheet was laminated on the front and back surfaces thereof via an adhesive layer. A PETG (glycol-modified polyethylene terephthalate) resin sheet with a thickness of 50 μm was used as the oversheet.

The detection part of the IC tag label sheet prepared as described above was placed on a cork sheet, and an injection needle for blood transfusion made of SUS316 with an outer diameter of 1.08 mm was used to detect only one arbitrary part of the detection part. Punctured.

As a result, it was detected that both the IC tag label sheets produced in Examples 1 and 2 were broken. Therefore, it was possible to detect that the detection unit was punctured.

Based on the above results, it was confirmed that the detection part of the IC tag label manufactured using the IC tag label sheet of the present invention was reliably punctured when an injection needle for blood transfusion with a diameter of about 1 mm was used. I found it possible.

1... Detector 2... IC chip 3... Antenna 4... Back side connection wiring (or jumper wire)
5: Base material (of the IC tag label sheet) 10: IC tag label sheet a: Wiring width of the conductor circuit of the detection part b: Spacing distance of the wiring of the conductor circuit of the detection part

Claims (3)

An IC tag label sheet capable of detecting that the mouth of a bottle sealed with a cork has been punctured by a rod-shaped object or tubular object,
An antenna capable of wireless communication with an external device, a detection unit for detecting that the cork has been punctured by a rod-shaped object or a tubular object, and an IC chip are provided on the substrate of the IC tag label sheet,
The detection unit and the antenna are electrically connected to the IC chip, respectively.
The detection part has two conductor circuits with a line/space of 0.30 mm or less/0.30 mm or less formed in an arbitrary shape by a single stroke, and the line part of one conductor circuit and the other conductor circuit. A space portion is provided so as to overlap each other in a plan view with an insulating layer interposed therebetween, and does not include millimeter-order electrodes, spaces, and through holes,
An IC tag label sheet, wherein the IC chip has a function of detecting disconnection or an increase in resistance value of a conductor circuit of a detection part. 2. The IC tag label sheet according to claim 1, wherein said shape is spiral. An IC tag label comprising the IC tag label inlet according to claim 1 or 2.

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