JP5040101B2 - Anti-counterfeit medium with IC chip mounting thread for RF-ID tag and manufacturing method thereof - Google Patents

Description

The present invention relates to an anti-counterfeit medium including a thread on which an IC chip for an RF-ID (Radio Frequency-Identification) tag is mounted.

As an anti-counterfeit measure for various anti-counterfeit media such as banknotes and gift certificates, there is a method of embedding various threads on paper.
Such anti-counterfeiting means using threads is provided at the stage of paper manufacture, so it is difficult to counterfeit by methods such as color copying, scanning with a scanner, photoengraving and simple offset printing.
However, since various anti-counterfeit media are not always able to make authenticity determinations in the field where they are actually used, it is simple to create a forged thread that resembles an authentic thread in combination with forgery methods such as color copying. There is a possibility that even a bad counterfeit product that has just been affixed to the product will be distributed as genuine.
For this reason, an authenticity determination system for various anti-counterfeit media using an RF-ID tag system, which is widely used in distribution and distribution systems, has been studied.
That is, an RF-ID tag in which a store forgery prevention person connects a medium mounted with a thread in which an RF-ID tag IC chip and an RF-ID tag antenna are electrically connected to a POS register installed beside the POS register. Listed as a leader writer.
The RF-ID tag reader / writer recognizes a regular individual identification number stored in the nonvolatile memory of the RF-ID tag IC chip.
For this reason, in the POS cash register, authenticity determination can be easily performed based on the individual identification number from the reader / writer for the RF-ID tag.
As a matter of course, after the creation of a counterfeit thread that imitates an IC chip for an RF-ID tag that has not been mounted, a counterfeit product simply placed on a color copy is placed next to the POS register. Even if the RF-ID tag reader / writer is used, it cannot be recognized by the RF-ID tag reader / writer.
For this reason, the POS cash register is easily identified as a counterfeit product.

As a forgery prevention medium utilized for authenticity determination utilizing this RF-ID tag system, Patent Document 1 discloses that an RFID (Radio Frequency Identification) chip and an antenna in which individual identification information (ID information) is stored in a memory are electrically connected. A paper-like RFID tag in which a combined RFID thread is sandwiched between paper layers and a manufacturing method thereof are introduced.
In Patent Document 1, a base film or base tape, an antenna made of a metal foil adhered on the base film or base tape, an RFID chip that joins and connects bumps to the antenna, and the RFID An RFID sled provided between the first paper layer and the second paper layer is provided around the chip and has a protective member having a thickness such that the height of the upper surface is higher than the height of the upper surface of the RFID chip. This paper introduces a paper-like RFID tag that has been extracted and formed into a paper-like shape and a manufacturing method thereof.

JP 2005-222299 A

In the invention introduced in Patent Document 1, there is a concern that a physical load is applied to the RF-ID tag IC chip at the time of paper making, and micro cracks are generated in the RF-ID tag IC chip.
Furthermore, there is a concern that micro cracks may enter the IC chip for the RF-ID tag even when a physical load is applied during printing and cutting.
These micro-cracks of IC chips for RF-ID tags can be converted into chip cracks due to physical loads when using anti-counterfeit media from IC chips for RF-ID tags that were operating normally at the time of factory inspection of printing companies. Concern about making the IC chip for the RF-ID tag inoperable.
If the IC chip for the RF-ID tag itself does not operate, the authenticity determination system based on the RF-ID tag system cannot be established.
As a screening means for removing minute cracks generated in an IC chip for an RF-ID tag by a printing company or the like, first, a thermal shock test is raised.
Thermal shock test, for example, by applying a temperature cycle of minus 60 degrees to plus 60 degrees several times to promote micro cracks by thermal expansion and contraction of IC chips for RF-ID tags, etc., for RF-ID tags This is a screening means for growing IC chips into cracks that break.
When a micro crack of an IC chip for an RF-ID tag grows into a chip crack in a thermal shock test and the IC chip for the RF-ID tag becomes inoperable, it can be selected as a malfunctioning product during factory shipment inspection. Is possible.
For this reason, only the forgery prevention medium which mounts the RF-ID tag in which the micro crack does not occur can be shipped from the factory.
However, by applying several temperature cycles by the thermal shock test, yellowing may occur in the sheet of the anti-counterfeit medium itself.
Furthermore, the medium on which the IC chip for the RF-ID tag is mounted cannot be subjected to screening means such as a thermal shock test because it is a market requirement to keep the medium price low.

That is, in the invention of Patent Document 1, there is a problem that a physical load such as printing and cutting is applied to the RF-ID tag IC chip during paper making, and micro cracks are generated in the RF-ID tag IC chip.
An object of the present invention is to provide a highly reliable anti-counterfeit medium with an IC chip mounting thread for an RF-ID tag that can solve this problem.
Specifically, if the RF-ID tag IC chip is not subjected to physical loads such as printing and cutting when paper is made, of course, the IC chip for RF-ID tag will naturally have minute cracks. Does not occur.
Therefore, the RF-ID tag IC chip mounting forgery prevention medium of the present invention first completes the forgery prevention medium having only the threads by printing on a sheet having only the threads and then performing a cutting process or the like.
For the anti-counterfeit medium having only the thread, the RF-ID tag IC chip for mounting the RF-ID tag IC chip after processing the thread as an RF-ID tag antenna from the reverse side of the thread forming surface is provided. It is to provide an anti-counterfeit medium with an IC chip mounting thread.

According to a first aspect of the present invention, in a threaded forgery prevention medium, a sheet having a narrow thread with a hologram on the surface of the transparent polyester film and an aluminum foil on the back surface of the transparent polyester film, and a non-thread of the sheet An RF-ID tag insertion hole having an opening wider than the width of the aluminum foil and narrower than the width of the thread, a dipole antenna formed by dividing the aluminum foil, and a connection to the dipole antenna an IC chip for RF-ID tags, the have a lid obtained by multiplying the RF-ID tag fitting hole, upper lid were subjected to fitting holes for the RF-ID tag, a sheet having a thread of said narrow It is a two-layer structure of the same paper, and the first layer is provided with a recess for storing an IC chip, and the total thickness of the first layer and the second layer is Serial is a RF-ID tag IC chip mounting Threaded medium for preventing forgery that a depth, wherein same der Rukoto inset hole.

According to a second aspect of the present invention, in the anti-counterfeit medium with a thread, an aluminum foil is formed on the back surface of the transparent polyester film, a hologram is formed on the surface of the transparent polyester film, and the thread slit in a narrow width is formed during paper making. A printing and cutting process for making the engraved paper, a process for forming an RF-ID tag insertion hole from the non-thread-formed surface of the paper, and a laser cutting of the aluminum foil from the RF-ID tag insertion hole forming a processed to a dipole antenna, a step of mounting the RF-ID tag IC chip to the dipole antenna, have a step of applying a lid to the RF-ID tag fitting hole, the RF-ID tag The upper lid hung on the fitting hole has a two-layer structure of the same sheet as the sheet having the thread, and the first layer has an IC Tsu recess for storing is provided a flop, with RF-ID tag IC chip mounting thread the combined thickness of first and second layers are the same der Rukoto wherein the depth of the fitting hole forgery It is a manufacturing method of a prevention medium.

According to a third aspect of the present invention, in the thread described in the method for producing the anti-counterfeit medium with the IC chip mounting thread for the RF-ID tag according to the second aspect, the thread slit into the narrow width is one side of a transparent polyester film. Adhering aluminum foil to the entire surface, forming a slit in the aluminum foil by etching, forming a hologram on the opposite surface of the transparent polyester film in which slits are formed in the aluminum foil by etching, and The slitting process is performed at the center of the slit, and the width of the aluminum foil is obtained as a hologram thread narrower than the width of the transparent polyester film.

For the RF-ID tag IC chip, it is possible to manufacture an anti-counterfeit medium with an RF-ID tag IC chip mounting thread without applying physical load such as printing and cutting during paper making.
That is, the IC chip for the RF-ID tag itself has no risk of micro cracks due to physical loads such as printing and cutting during paper making.
For this reason, the IC chip for RF-ID tag that was operating normally at the time of factory shipment inspection concentrates stress on the microcrack due to physical load during use, and the IC chip for RF-ID tag itself becomes defective. It is possible to provide a highly reliable anti-counterfeit medium with an IC chip mounting thread for an RF-ID tag that does not grow into a chip crack.
Further, it is not necessary to make a manufacturing spare for the IC chip for the RF-ID tag, which is the most expensive among the medium components, at the time of paper making, printing and cutting.
For this reason, it is possible to minimize an increase in manufacturing cost due to the mounting of the RF-ID tag IC chip.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an external view from the non-thread-forming surface of a threaded forgery prevention medium before mounting an IC chip for an RF-ID tag of the present invention.
FIG. 2 is a cross-sectional view of the anti-counterfeit medium with threads before mounting the IC chip for RF-ID tag of the present invention.
FIG. 3 is a cross-sectional view of the RF-ID tag IC chip for insertion into the anti-counterfeit medium with threads before mounting the RF-ID tag IC chip of the present invention.
FIG. 4 is a plan view and a cross-sectional view when a black line is formed in the RF-ID tag IC chip insertion hole in the anti-counterfeit medium with threads before mounting the RF-ID tag IC chip of the present invention.
FIG. 5 is a plan view and a cross-sectional view of the RF-ID tag IC chip mounting thread mounted on the RF-ID tag IC chip mounting thread forgery prevention medium of the present invention.
FIG. 6 is a cross-sectional view showing a state in which the top cover is fitted to the anti-counterfeit medium with the IC chip mounting thread for the RF-ID tag of the present invention.

FIG. 1 shows a state in which a forgery prevention medium itself having only a hologram thread 1 is first completed by printing (not shown) on a sheet 2 having only the hologram thread 1 and then cutting the hologram thread. It is the external view seen from the formation surface.
Note that the paper having only the hologram thread 1 is obtained by paper making of a hologram thread-containing paper known by a paper manufacturer.

2 is a cross-sectional view taken along line AA ′ of FIG.
Hereinafter, it will be described that an RF-ID tag IC chip is mounted on the cross section of AA ′ to obtain an anti-counterfeit medium with an RF-ID tag IC chip mounting thread.
The hologram thread 1 is formed by etching a transparent polyester film 4 having an aluminum foil 3 bonded to the entire surface, forming a striped aluminum foil 3 and then forming a polypropylene resin, a polyester resin, a polyamide resin, a polycarbonate resin, A transparent resin layer such as polyvinyl chloride resin, acrylic resin, polystyrene resin, melamine resin, epoxy resin, urethane resin or ethylene-vinyl alcohol copolymer is formed by a roll coater or the like.
Thereafter, the hologram pattern 5 is formed on the transparent resin layer by an embossing roll, and an overcoat 6 made of a transparent resin is formed by a roll coater after aluminum deposition.
The slit of the hologram threat 1 is obtained by slitting at the center of the portion where the aluminum foil 3 is not formed, thereby obtaining the hologram thread 1 slit into a narrow width.
As a result, as shown in the sectional view of FIG. 2, the width of the aluminum foil 3 can be made narrower than the width of the transparent polyester 4 on which the hologram pattern 5 is formed.

FIG. 3 is a cross-sectional view of the RF-ID tag IC chip insertion hole 7 processed by irradiation with a known YAG laser.
Since the YAG laser is reflected by the aluminum vapor deposition layer and the aluminum foil 3 of the hologram thread 1, only the aluminum vapor deposition and the aluminum foil of the hologram thread 1 are exposed.
In this embodiment, in order to prevent the penetration of the YAG laser, the straight diameter of the RF-ID tag insertion hole 7 by YAG laser processing is made smaller than the width of the hologram thread 1.
Although not shown, the YAG laser irradiation portion (the portion that becomes the IC chip insertion hole 7 for the RF-ID tag) is printed with a known black ink so that the RF-ID tag can be inserted. The YAG laser processing of the hole 7 is facilitated.

FIG. 4 is a plan view showing a state in which the black line 8 is formed in the IC chip insertion hole 7 for the RF-ID tag by a known ink jet printer, and a sectional view is shown in the lower view.
When this black line 8 is irradiated with a YAG laser, the black line 8 is erased together with the aluminum foil 3.
That is, the aluminum foil 3 is divided by a YAG laser to form a dipole antenna.
Further, in the present embodiment, the holo thread 1 in which the width of the aluminum foil 3 is narrower than the width of the transparent polyester film 4 on which the hologram pattern 5 is formed is employed.
This is to prevent the YAG laser from penetrating because the width of the horo thread 1 is wider than the diameter of the RF-ID tag IC chip fitting hole 7 by the YAG laser.
Furthermore, since the width of the aluminum foil 3 is narrower than that of the transparent polyester film 4, the aluminum foil 3 is completely divided to obtain a dipole antenna.
If the width of the hologram thread and the width of the aluminum foil are the same, the straight line of the RF-ID tag IC chip insertion hole 7 by the YAG laser is narrower, so the processing line by the YAG laser on the aluminum foil is Since both ends are connected without completely dividing the aluminum foil, it does not function as a die hole antenna.

FIG. 5 shows a state in which a solder bump 10 is formed on the antenna connection pad of the RF-ID tag chip 9 which is thinned by a known back wrap and is mounted with a known anisotropic conductive adhesive 11 after the solder pump 10 is formed by a known method. The top view is shown in the top view, and the cross-sectional view is shown in the bottom view.

FIG. 6 is a cross-sectional view of a circular fitting lid 14 inserted into the RF-ID tag IC chip fitting hole 7 on the same sheet as the sheet 1, and the lower figure is completed by fitting the fitting lid 14 in the lower figure. Indicates the state.
On the back surface of the circular fitting lid 14, there is a rectangular recess 12 that enters the IC chip portion for the RF-ID tag. And the well-known pressure sensitive adhesive 13 is formed in a back surface.
The fitting lid 14 has an overall thickness equivalent to the depth of the RF-ID tag fitting hole 7, and the height of the mounting portion of the RF-ID tag IC chip 9 is the depth of the recess 12.

The fitting lid 14 has a two-layer structure of the same sheet as the sheet 1.
First, the production of the first layer having a two-layer structure will be described.
A known separator is affixed to the pressure-sensitive adhesive surface of the paper coated with the pressure-sensitive adhesive 13 on the entire surface.
The thickness of the first layer paper including the pressure sensitive adhesive 13 is the same as the height of the mounting portion of the IC chip 9 for the RF-ID tag.
After that, the recess 12 is formed by penetrating the separator from the first layer sheet surface to the separator.

The second layer in which the pressure-sensitive adhesive 13a is applied to the entire back surface has the same thickness as the depth of the RF-ID tag IC chip insertion hole 7 in a state where the second layer is adhered to the first layer sheet.
The second layer with the pressure-sensitive adhesive 13a applied to the entire back surface is affixed to the paper surface of the first layer with the pressure-sensitive adhesive surface 13a.
From the paper surface of the second layer, the circular pick-up teeth are stopped with the pressure-sensitive adhesive 13 of the first layer by the big-bucking process, and unnecessary portions are removed to obtain a circular fitting lid 14 having a round shape.

Using a known labeler, the circular fitting lid 14 is peeled off from the separator and inserted into the RF-ID tag IC chip fitting hole 7 to complete the anti-counterfeit medium with the RF-ID tag IC chip mounting thread.

[Modification]
The anti-counterfeit medium with an IC chip mounting thread for an RF-ID tag of the present invention can be implemented without being bound by the above embodiment. Here, some modified examples for carrying out the present invention will be described.
First, the hologram thread is a print holo thread that is combined with printing obtained by forming an overcoat layer after printing on the hologram forming surface of a transparent polyester film having a hologram, and has a further effect of preventing falsification. It doesn't matter.
In order to further improve the physical reliability of the RF-ID tag IC chip, a thin stainless steel reinforcing plate may be mounted on the non-circuit forming surface of the RF-ID tag IC chip after bonding. Absent.
The mounting of the IC chip for the RF-ID tag has been described by employing an anisotropic conductive adhesive, but an anisotropic conductive film may be used.
Although it has been described that the fitting lid coated with the pressure-sensitive adhesive is fitted and completed, a pressure-sensitive heat-sensitive adhesive may be used .
Although the description has been made on the assumption that one die hole antenna is formed, two parallel threads are formed in the vicinity of the paper, and an RF-ID tag chip is mounted on one to form a main antenna. The other one may be used as an auxiliary antenna to enable use in the UHF frequency band (900 MHz band).

The present invention can be used for various anti-counterfeit media such as gift certificates, gift certificates, certificates, tickets, voting tickets, tickets, and banknotes.

The external view from the non-thread formation surface of the forgery prevention medium with a thread before mounting of IC chip for RF-ID tags of the present invention Sectional drawing of anti-counterfeit medium with thread before mounting IC chip for RF-ID tag of the present invention Sectional drawing at the time of RF-ID tag IC chip insertion hole processing to the anti-counterfeit medium with a thread before mounting the IC chip for RF-ID tag of this invention Plane view and cross-sectional view when forming a black line in an RF-ID tag IC chip insertion hole in the anti-counterfeit medium with thread before mounting the IC chip for RF-ID tag of the present invention Plane view and cross-sectional view of the RF-ID tag IC chip mounting thread mounted on the RF-ID tag IC chip mounting thread forgery prevention medium of the present invention Sectional drawing which shows the state which set the upper cover to the forgery prevention medium with the IC chip mounting thread | sled for RF-ID tags of this invention

Explanation of symbols

1: Hologram thread 2: Paper 3: Aluminum foil 4: Transparent polyester film 5: Hologram pattern 6: Overcoat 7: Chip insertion hole for RF-ID tag 8: Black wire 9: Chip for RF-ID tag 10: Solder bump 11 : Anisotropic conductive adhesive 12: Recess 13: First layer pressure sensitive adhesive 13a: Second layer pressure sensitive adhesive 14: Inserting lid

Claims (3)

In a forgery prevention medium with a thread, a hologram is formed on a surface of a transparent polyester film, a paper having a narrow thread with an aluminum foil on the back surface of the transparent polyester film, and a non-thread-forming surface side of the paper. An RF-ID tag insertion hole having an opening wider than the width of the thread, a dipole antenna formed by dividing the aluminum foil, and an RF-ID tag IC chip connected to the dipole antenna If, have a lid obtained by multiplying the fitting hole for the RF-ID tag,
The upper lid hung on the RF-ID tag insertion hole has a two-layer structure of the same sheet as the sheet having the narrow thread, and the first layer has a recess for storing an IC chip. , the first layer and the RF-ID tag IC chip mounting threaded medium for preventing forgery the combined thickness of the second layer is characterized by the same der Rukoto the depth of the fitting hole. In a threaded forgery prevention medium, an aluminum foil is formed on the back surface of a transparent polyester film, a hologram is formed on the surface of the transparent polyester film, and a thread slit into a narrow width is used as a paper that is formed during paper making and A cutting step, a step of forming an RF-ID tag insertion hole from the non-thread-forming surface of the paper, and a step of cutting the aluminum foil from the RF-ID tag insertion hole by a laser to form a dipole antenna If, possess a step of mounting an IC chip for RF-ID tag to the dipole antenna, the step of applying a lid to the fitting hole for the RF-ID tag,
The upper lid hung on the RF-ID tag insertion hole has a two-layer structure of the same sheet as the sheet having the thread, and the first layer is provided with a recess for storing an IC chip. layer and method of manufacturing the RF-ID tag IC chip mounting threaded medium for preventing forgery the combined thickness of the second layer is the same der Rukoto wherein the depth of the fitting hole. The narrow slit thread includes a step of bonding an aluminum foil to the entire surface of one side of a transparent polyester film, a step of forming a slit in the aluminum foil by etching, and the transparent in which the slit is formed by etching in the aluminum foil. 3. A hologram thread having a width of the aluminum foil narrower than a width of the transparent polyester film is obtained by forming a hologram on the opposite surface of the polyester film and slitting at the center of the slit. The manufacturing method of the forgery prevention medium with the IC chip mounting thread | sled for RF-ID tags of description.

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