JP2013089015A - Non-contact type information medium and booklet attached to non-contact type information medium - Google Patents

Abstract

A non-contact type information medium and a non-contact type information medium-attached booklet that are difficult to forge or alter and can improve security.
SOLUTION: A thermoplastic adhesive layer and forgery / alteration prevention layers 51 and 52 are provided on exterior base materials 21 and 23 and bonded by applying heat pressure with an I inlet 10 interposed therebetween, thereby having a falsification prevention function. Create a non-contact information medium.
[Selection] Figure 1

Description

  The present invention includes, for example, a non-contact type information medium that includes an antenna coil and an IC chip and can record information on the IC chip in a non-contact manner, and a non-contact type information medium incorporating the non-contact type information medium In particular, the present invention relates to a non-contact information medium that can be used for an ID card, a driver's license, an electronic passport, a bank savings passbook, a pension book, a sailor's notebook, and a non-contact information medium-attached booklet.

  In recent years, non-contact information media has been widely used, and in particular, systems using non-contact IC cards and non-contact IC tags are used in various fields. A booklet-shaped information medium, for example, a booklet attached to a contactless information medium in which a contactless information medium is added to a booklet such as a passport or a bank passbook has been developed.

The non-contact type information medium used for these is an IC inlet composed of an antenna and a non-contact type IC chip connected to the antenna, which is sandwiched by an exterior base material. A non-contact information medium-attached booklet is a booklet that is attached to a cover member called a cover sheet, pasted on a booklet made of internally-pasted paper or body paper, and bound to a booklet.
Such a booklet attached to a non-contact type information medium is characterized in that data can be printed and a VISA stamp can be applied like an ordinary booklet, and electronic data can be recorded.

  Patent Document 1 describes a booklet in which a non-contact information medium is built in the back cover as described above. The non-contact information medium described in Patent Document 1 includes a first base material, a second base material, an antenna coil, an IC chip, and an adhesive layer.

  That is, the second base is provided with an opening having a predetermined width, and the opening is formed as a recess by bonding the second base to the first base. An antenna coil and an IC chip connected to the antenna coil are disposed in the recess, and an adhesive layer is provided on the first base material to constitute a non-contact type information medium. This non-contact type information medium can be used by being attached to the inner surface of the back cover of the booklet by the adhesive layer.

  Moreover, like credit cards and IC cards that are generally distributed, IC and antennas are sandwiched between thermoplastic base materials such as sheets of PVC, PET-G, etc., and a strong heat pressure is applied. It is also known to create a non-contact information medium-attached booklet by adhering a non-contact type information medium smoothed by flowing the material between the front or back cover of the booklet and the inner sheet. .

  In such a non-contact type information medium-attached booklet, sheets such as PVC and PET-G are used, so that the rigidity becomes high and the cover is difficult to open or the base material and the inner-attached paper are difficult to bond. As one of the methods for solving this problem, instead of using PVC, PET-G or the like, a thermoplastic porous sheet having voids in the base material is used. Can do.

  Since such a porous thermoplastic sheet is obtained by foaming a resin, the material is generally soft and has low rigidity. Moreover, since the penetration of various adhesives is easy due to the voids, the adhesiveness with the inner sheet is increased. Furthermore, unevenness can be absorbed by applying an appropriate pressure.

  When such a porous thermoplastic sheet is used as a base material, the sheet itself is bonded by thermal fusion, or after applying a thermoplastic adhesive, it is bonded by a thermal laminating method. It is possible to apply and bond a water-based or solvent-based dry-solidified adhesive.

Japanese Patent Laid-Open No. 2002-4068

  However, such a non-contact type information medium and a non-contact type information medium-attached booklet have a problem that they can be easily counterfeited, although the manufacturing method is simple. Although it is difficult to forge the IC chip itself, the card shape can be easily imitated if it looks only. For example, if it is something like an ID card, license, passport, etc. used for identification, It becomes possible to make and use counterfeit products that resemble only the appearance.

  In particular, electronic passports are often used as identification without using the functions of non-contact information media, and it is a big problem that the appearance can be easily counterfeited. Naturally, these media are provided with anti-counterfeiting elements, but many are provided on the surface of the media, and counterfeiters analyze these anti-counterfeiting elements to make counterfeit products that look similar. There is a problem that.

  The problem to be solved by the present invention is to provide a non-contact type information medium and a non-contact type information medium-attached booklet that are difficult to forge or alter and can improve security.

  A non-contact type information medium according to claim 1 of the present invention is a non-contact type information medium in which an IC chip and an antenna connected to the IC chip are sandwiched between at least two outer base materials. The material is characterized in that a thermoplastic adhesive layer and a falsification preventing layer are provided, or a thermoplastic adhesive layer / falsification preventing layer is provided.

  The non-contact information medium according to claim 2 of the present invention is characterized in that a porous thermoplastic resin sheet is used for the exterior base material.

  A non-contact type information medium according to claim 3 of the present invention is a non-contact type information medium comprising a thermoplastic adhesive mixed with a dye or pigment that absorbs or emits light in the infrared region as the thermoplastic adhesive layer and falsification preventing layer. It is characterized by using.

  The non-contact type information medium according to claim 4 of the present invention uses a mixture of a thermoplastic adhesive and a dye or pigment that emits fluorescence by ultraviolet rays as the thermoplastic adhesive layer and the falsification preventing layer. And

  The non-contact type information medium according to claim 5 of the present invention is a fluorescent light having different wavelengths for the thermoplastic adhesive layer and the falsification preventing layer provided on each of the two exterior base materials provided on both sides of the antenna sheet. It is characterized by emitting.

  A booklet attached with a non-contact type information medium according to claim 6 of the present invention is configured by incorporating the non-contact type information medium according to any one of claims 1 to 5 inside a front cover or a back cover. It is characterized by that.

  According to the non-contact information medium according to claim 1 of the present invention, forgery of the booklet itself can be suppressed by providing a forgery / alteration preventing layer on the exterior base material. The anti-counterfeiting layer is different from the anti-counterfeiting function provided in the conventional ID page etc., and it is difficult to find the presence even if the ID page is observed in the normal state, thus preventing forgery High effect. The present invention assumes that some people, such as police officers and immigration officers with limited information, judge counterfeiting.

  According to the non-contact type information medium according to claim 2 of the present invention, a non-contact type information medium having high flexibility and good compatibility with an adhesive is obtained by using a porous thermoplastic resin sheet for the exterior base material. Can be created. This is an important feature particularly when creating a non-contact type information medium attached booklet.

  According to the non-contact type information medium of claim 3 of the present invention, the forgery prevention effect can be obtained by using a dye or pigment that absorbs or emits light in the infrared region as the forgery / alteration prevention layer. When such a falsification preventing layer is used, since visual judgment is impossible, authenticity is judged using a machine.

According to the non-contact type information medium of claim 4 of the present invention, the forgery prevention effect can be obtained by using a dye or pigment that emits light with ultraviolet rays as the forgery / alteration prevention layer. The anti-counterfeit function that emits light by ultraviolet rays is generally used, and authenticity can be easily determined using a so-called UV lamp or the like.
In addition, since the falsification preventing layer is provided inside the non-contact type information medium, when verifying by irradiating with a UV lamp or the like, the cross section of the non-contact type information medium is observed, From the above, it can be determined that the product is genuine if fluorescence of an appropriate color is emitted. This method is not so popular and is also characterized by a low probability of being counterfeited by a forger.

According to the non-contact type information medium according to claim 5 of the present invention, the forgery prevention effect can be further enhanced by providing the two exterior base materials with the forgery / alteration prevention layer that generates fluorescence of different colors. Each exterior base material is bonded so as to sandwich the antenna sheet. However, when a porous thermoplastic resin sheet is used as the exterior base material, the antenna sheet is smaller in size than the exterior base material, and the obtained non-contact type information medium In many cases, the two exterior base materials are bonded to each other without the antenna sheet interposed therebetween, so that the forgery / alteration prevention layer is observed as almost one layer.
As a result, at first glance, the two colors of fluorescence are additively mixed and observed as one different color. However, since the two colors of anti-counterfeit prevention layers can be confirmed by magnifying and observing, more anti-counterfeiting The effect can be enhanced.

  According to the non-contact type information medium attached booklet of claim 6 of the present invention, the non-contact type information medium attached booklet having the function of preventing forgery and alteration by incorporating the non-contact type information medium in the booklet. Can be created. In addition, this anti-counterfeiting effect is confirmed by mechanical detection using infrared rays, or is confirmed by observing a cross section, and thus interferes with the anti-counterfeiting function already provided in the booklet. It is possible to work as a separate function without increasing the falsification prevention effect.

The top view which shows typically an example of the IC inlet which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal side view for explaining an example of a method for manufacturing a non-contact information medium according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal side view for explaining an example of a method for manufacturing a non-contact information medium according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal side view for explaining an example of a method for manufacturing a non-contact information medium according to an embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the drawings.
The non-contact type information medium according to the present embodiment is one in which an IC chip and an antenna connected to the IC chip are sandwiched between two exterior base materials. As an antenna, an antenna sheet using an etching method, a wound antenna, a printed antenna, or the like can be used. Here, an etching method antenna will be described as an example.

  In the case of an etching type antenna, the IC chip and the antenna sheet connected thereto are collectively referred to as an IC inlet 10. As shown in FIG. 1, the IC inlet 10 includes an antenna sheet having an antenna coil 12 formed on one surface of an antenna base sheet 11 and an antenna jumper 13 formed on the other surface, and an IC chip 14. The IC chip 14 and the antenna coil 12 are electrically connected.

  The antenna coil 12 can be formed by an etching method or a printed antenna method, but an antenna coil manufactured by using an etching method is most frequently used because it has the highest durability and reliability.

  Aluminum and copper are most often used as materials for the antenna coil 12 and the antenna jumper 13 formed by the etching method. In the case of the printed antenna method, the antenna coil is formed by printing ink containing silver or carbon.

  Taking an etching antenna as an example, a plastic film such as PET or PEN is often used as the substrate 11. A metal thin film is formed on the substrate 11 by plating, vapor deposition, bonding, or the like. An antenna coil pattern is formed by printing a resin on the base material 11 with the metal foil thus obtained. Next, the substrate on which the antenna coil pattern is formed is immersed in a corrosive solution and etched, so that portions other than the antenna coil pattern on which the resin is printed are not melted, and the antenna coil 12 can be obtained.

  In addition, the antenna jumper 13 is required on the opposite side of the surface on which the antenna coil 12 is formed. This is because the metal foil and the printed pattern are provided on both sides in advance and etching is performed at the same time, or the antenna coil pattern is formed on one side. After that, only the antenna jumper 13 is attached or formed.

  There is also a method in which an antenna is directly formed on an exterior base material by winding or the like without using an IC inlet. In this method, the coated copper wire or the like can be heated and embedded in one exterior base material to form an antenna, and then connected to the IC chip, and the other exterior base material can be bonded together. In this method, the antenna can be formed more easily than in the etching method, but there are portions inferior to the etching method in terms of stability such as frequency characteristics, and they are used properly depending on the application.

  As the exterior substrate, for example, a thermoplastic resin sheet such as PVC or PET-G is generally used, but a porous thermoplastic sheet can be used otherwise. The porous thermoplastic sheet is generally marketed as a resin sheet or synthetic paper imparted with printability for inkjet or offset.

  By using such a porous thermoplastic sheet as an exterior base material, it becomes possible to form a flexible non-contact type information medium, and this non-contact type information medium can be used as another medium such as a booklet. In the case of bonding together, it is excellent in workability because good adhesiveness with the adhesive can be obtained.

  When using the porous thermoplastic base material, as shown in FIG. 2, the thermoplastic adhesives 31 and 32 are applied in advance to the inner portions of the two exterior base materials 21 and 22), and the IC A non-contact type information medium as shown in FIGS. 3 and 4 can be obtained by laminating the inlets 10 and bonding them by applying heat pressure.

  The thermoplastic adhesives 31 and 32 that can be used here are ethylene-vinyl acetate copolymer system, ethylene-methacrylic acid copolymer system, polyester system, acrylic resin, nylon system, polyamide system, polyurethane system, polyolefin system, etc. Various general thermoplastic resins can be used. Among these, a resin that forms a coating film that is particularly resistant to moisture and suppresses permeation of oxygen and chloride ions, and a resin that deteriorates due to heat and humidity and does not peel off at an adhesive portion are used. In order to achieve both of these performances, two or more kinds of resins can be mixed or applied to two layers.

In addition, from the viewpoint of the post-process and workability, coating is easy, blocking after drying is less likely to occur, and highly durable ones are suitable for use. For example, suitable performance can be obtained by coating an ethylene-methacrylic acid copolymer aqueous emulsion adhesive with an epoxy crosslinking agent, or applying a polyolefin or acrylic adhesive with a gravure coater. it can.
In general, polyester-based adhesives may be hydrolyzed by humidity, and ethylene-vinyl acetate copolymer-based adhesives are likely to deteriorate over time.

  As a method of adding a forgery / alteration prevention function to the non-contact type information medium produced as described above, as shown in FIG. 4, forgery / alteration prevention function layers 41, 42 separately from the thermoplastic adhesive layers 31, 32. And a method of providing the thermoplastic adhesive layer and anti-counterfeiting functional layers 51 and 52 obtained by adding a forgery prevention function to the thermoplastic adhesive layer.

  In the case of providing a thermoplastic adhesive layer and an anti-counterfeiting functional layer, it can be easily created by mixing a pigment or dye having an anti-counterfeiting function with the thermoplastic adhesive. The explanation will be made mainly on the assumption.

  Many technologies can be used as the falsification preventing functional layer or the thermoplastic adhesive layer / falsification preventing functional layer. Typically, those using infrared absorption, those using infrared fluorescence, and ultraviolet fluorescence are used. Things can be raised.

This method uses infrared absorption. This method uses a dye or pigment having absorption at a specific wavelength in the infrared region, and verifies it with a device capable of detecting such absorption. The verification machine includes, for example, a detection unit such as a lamp unit that emits infrared rays and a CCD camera to which a filter that cuts a specific wavelength is attached.
This method can increase the anti-counterfeiting effect if a dye or pigment having a special absorption wavelength can be used, but the verification machine tends to be special, so it is generally difficult to spread. is there.

  The method using infrared fluorescence is almost the same as the method using infrared absorption, but the method using infrared absorption tends to be counterfeited using carbon black or the like, whereas infrared fluorescence is more effective in preventing forgery. Is expensive. However, since dyes and pigments are special, they tend to be expensive.

  The method using ultraviolet fluorescence can be used most simply and inexpensively. Originally, anti-counterfeiting technology using ultraviolet fluorescence has been used in various fields, and an ultraviolet irradiator, a so-called UV lamp, which is a verification machine, is also widely used. Unlike infrared light, it is difficult for ultraviolet light to pass through the substrate, and therefore, anti-counterfeiting technology using ultraviolet fluorescence is usually provided on the outer layer such as the surface of the substrate. A system is proposed in which a prevention layer is provided between base materials and verified by observing from a cross section.

  Advantages of providing a forgery / alteration preventing layer between the substrates are as follows. First, providing a thermoplastic adhesive layer and a falsification preventing layer at the same time, or providing a thermoplastic adhesive layer and a falsification preventing layer by mixing an ultraviolet fluorescent dye or pigment in the thermoplastic adhesive The load on the process is small.

  Secondly, the operation itself of observing the cross section is easy, and verification is performed using a UV lamp that has been widely used, so that the burden on the user is small.

  Thirdly, in order to provide a forgery / alteration prevention layer between the base materials, it is necessary to cope with it at the stage of manufacturing the non-contact type information medium. That is, when a forgery prevention technology is provided on a base material, a forger will consider providing the forgery prevention technology on a non-contact type information medium separately manufactured or obtained. If it is provided in the meantime, the counterfeiter has to consider counterfeiting of the anti-counterfeiting technology from the time of manufacturing the non-contact type information medium.

  The anti-counterfeiting effect can be further enhanced by providing the two substrates with ultraviolet fluorescence that emits light in different colors. This is an effect that additive color mixing occurs due to the adjoining ultraviolet fluorescent layers of two colors, and at first glance it appears as another layer of one color.

  That is, even if a counterfeiter attempts to counterfeit the non-contact type information medium provided with the ultraviolet fluorescent layer of the present embodiment, even if he notices that the ultraviolet fluorescent layer emits light, the ultraviolet fluorescent light close to the emitted color It should remain a counterfeit to provide a layer.

  However, humans in the position of determining the authenticity of these non-contact type information media have information that the ultraviolet fluorescent layer is composed of two colors with two layers. The product can be identified.

  The present embodiment is characterized in that a great effect can be obtained even though the manufacturing load for providing the forgery / alteration prevention layer is hardly changed. For example, if one fluorescent color is set to red and the other fluorescent color is set to green, it will be observed as yellow emission with additive color mixture when viewed from a distance, and red when observed close-up. It is observed that the green layer and the green layer emit light.

  The non-contact type information medium-attached booklet is formed by sandwiching and bonding the non-contact type information medium between a cover member and an inner sheet, and processing it into a booklet shape. The non-contact type information medium is bonded by an inner sheet and an adhesive, and this adhesive often uses a water-based emulsion adhesive from the viewpoint of workability and environment. The reason for this is that equipment for manufacturing a general booklet often performs bonding between paper and paper or cloth and paper.

  If a non-contact type information medium used for a booklet attached to a non-contact type information medium is prepared using an exterior base material used for a general IC card, for example, PVC or PET-G, existing equipment In addition, the inner sheet cannot be bonded with an adhesive, and problems due to high rigidity arise. In order to solve such problems, the use of a porous thermoplastic base sheet as a base material for exteriors shows various types of adhesives and good adhesion, and has no unevenness and is flexible. A booklet with a contact information medium can be created.

  When bonding the non-contact type information medium and the cover member, a reaction-curing type adhesive having no volume change can be suitably used. If a dry-curing adhesive with a volume change is used, and if a part of the non-contact information medium is recessed, the amount of adhesive used increases, resulting in a large volume reduction during drying. In addition, a dent is formed on the outside of the cover member, which causes a problem in appearance.

  In order to solve such a problem, it is desirable to use an adhesive having no volume change. For example, a two-component mixed epoxy adhesive, a moisture-curable silicone adhesive, a one-component curable urethane adhesive Etc. can be used. In addition, various hot melt adhesives such as an ethylene-vinyl acetate copolymer system, an ethylene-methacrylic acid copolymer, a polyester series, a polyamide series, a polyurethane series, and a polyolefin series can be used.

  Hereinafter, an embodiment will be described with reference to FIGS. 2, 3, and 4.

(Creating an IC inlet using an etching antenna, see Fig. 2)
A 38 μm polyethylene terephthalate (PET) sheet is used as the antenna sheet substrate 11, a thermoplastic adhesive is applied to both sides and an aluminum film is bonded, and then an antenna coil-shaped mask layer is printed on one side. An antenna jumper-shaped mask layer was printed on the other surface, and the antenna coil 12 was formed on the front surface by pattern etching, and the antenna jumper 13 was formed on the rear surface.

  As the thermoplastic adhesive, one having EVA as a main component and a melting temperature of 110 degrees was used. Further, the antenna coil 12 and the antenna jumper 13 were joined by laser welding, and the IC chip 14 was welded to the connection terminal portion of the antenna coil 12. The outer circumference of the antenna coil 12 is 80 mm × 48 mm, and the inner circumference is 67 mm × 37 mm. The inside of the antenna coil 12 was removed by punching out with a size of 65 mm × 35 mm. Further, the outer periphery of the antenna coil 12 and the outline 2 mm away from the IC chip 14 were taken, and the antenna sheet substrate 11 outside thereof was punched and removed to obtain the IC inlet 10.

(Creation of adhesive used for thermoplastic adhesive layer and anti-falsification functional layer)
As a thermoplastic adhesive, an aqueous resin having ethylene acrylic acid as a main component and a melting temperature of 140 degrees was prepared. Adhesive A is obtained by adding 5% of fluorescent dye “Lumicol A (red light emission)” to this resin, and Adhesive B is obtained by adding 5% of fluorescent dye “Lumicol B (green light emission)” to the same resin. Made an adhesive.

(Creation of non-contact information media, see Fig. 3)
As exterior substrates 21 and 22, 380 μm porous polyolefin sheets were prepared. 10 μm of the adhesive A was applied to one surface of the exterior base material 21 to form a thermoplastic adhesive layer and a falsification preventing functional layer 51. Similarly, 10 μm of the adhesive B was applied to one surface of the exterior base material 22 to form a thermoplastic adhesive layer and a falsification preventing functional layer 52. After these sheets were dried, they were cut into 150 mm × 200 mm sheets.

  The IC inlet 10 is stacked on the adhesive surface side of one of the exterior base materials 21 prepared above, and the other exterior base material 22 is stacked on top of each other with the adhesive surface facing inward. The sheet was sandwiched between two SUS plates and bonded by heating and pressing. A smooth non-contact type information medium could be obtained by processing under conditions of a heating part temperature of 150 ° C., a pressure of 20 kgf / cm 2 and a processing time of 60 seconds.

(Confirmation of effect)
When the cross-sectional portion of the obtained non-contact type information medium with a falsification preventing function was irradiated with ultraviolet light of 365 nm, the two thermoplastic adhesive layers / falsification preventing function layers 51 and 52 emitted light, and at first glance. By the way, it was observed as yellow fluorescence. Thereby, the 1st forgery / alteration prevention effect was confirmed. Further, when this light emitting portion was observed with a magnifier or the like, it was confirmed that light was emitted in two colors, one of which was red and the other was green. Thereby, the 2nd forgery prevention effect was confirmed.

  The non-contact type information medium of the present invention can prevent alteration and unauthorized reuse by providing a forgery / alteration prevention layer between base materials. In order to manufacture a non-contact type information medium with this function, it is not necessary to change large facilities and processes, so it is easy to supply ID cards and electronic passports with higher security than existing ones. Can do.

  DESCRIPTION OF SYMBOLS 10 ... IC inlet, 11 ... Antenna sheet base material, 12 ... Antenna coil, 13 ... Antenna jumper, 14 ... IC chip, 21 ... Exterior base material, 22 ... Exterior base material, 31 ... Thermoplastic adhesive layer, 32 ... Heat A plastic adhesive layer, 41 ... a falsification preventing functional layer, 42 ... a falsification preventing functional layer, 51 ... a thermoplastic adhesive layer and falsification preventing functional layer, 52 ... a thermoplastic adhesive layer and a falsification preventing functional layer.

Claims (6)

  A non-contact information medium in which an IC chip and an antenna connected to the IC chip are sandwiched between at least two exterior base materials, and the exterior base material is provided with a thermoplastic adhesive layer and a falsification preventing layer. Or a non-contact type information medium, wherein a thermoplastic adhesive layer and a falsification preventing layer are provided.   The non-contact type information medium according to claim 1, wherein a porous thermoplastic resin sheet is used for the exterior base material.   3. The thermoplastic adhesive layer and the falsification preventing layer, wherein a dye or pigment that absorbs or emits light in the infrared region is mixed with a thermoplastic adhesive. Non-contact information medium.   3. The non-contact type information according to claim 1, wherein the thermoplastic adhesive layer and the falsification preventing layer is a mixture of a dye or pigment that emits fluorescence by ultraviolet rays and a thermoplastic adhesive. Medium.   5. The non-contact type according to claim 4, wherein the thermoplastic adhesive layer and the falsification preventing layer provided on each of the two exterior base materials provided on both sides of the antenna sheet emit fluorescence having different wavelengths. Information medium.   A non-contact type information medium-attached booklet comprising the non-contact type information medium according to any one of claims 1 to 5 built in a front cover or a back cover.

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