Printed matter for authenticity determination, method for manufacturing printed matter for authenticity determination, and authenticity determination system

Abstract

To provide a printed matter for authenticity determination which makes the shape and the position of a display for authenticity determination variable, according to a demand and a desire of a user, and a method for manufacturing a printed matter for authenticity determination.SOLUTION: A printed matter for authenticity determination has: a first infrared transmission ink layer formed of infrared transmission ink; a second infrared transmission ink layer which is formed of the infrared transmission ink, and is formed so as to be separated from the first infrared transmission ink layer by an intermediate layer which is formed of a material different from the infrared transmission ink; and an authenticity determination part including a pattern formed by removing a part of at least one of the first infrared transmission ink layer and the second infrared transmission ink layer using a laser beam.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an authenticity determining printed matter having a function of determining whether a display medium has been copied or reproduced, and a method for manufacturing the authenticity determining printed matter. [Background technology]

[0002] There are known information display media such as cards and papers that have an authenticity checking function that determines whether the printed matter is a counterfeit, duplicate or copy.

[0003] For example, a printed matter has been proposed in which a copy prevention mark or a dummy pattern is formed by using inks with different wavelength absorption characteristics (for example, Patent Document 1). In addition, a printed matter has been proposed in which an information section is provided using three types of infrared absorbing inks with different wavelength ranges of infrared absorption characteristics, thereby displaying a significant pattern when the printed matter is read by a machine (for example, Patent Document 2). Also, a technology is known in which an invisible hidden pattern is embedded in a card to determine the authenticity of the card (for example, Patent Document 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 7-68979 [Patent Document 2] JP 2010-173217 A [Patent Document 3] Patent Publication No. 2021-49728 Summary of the Invention [Problem to be solved by the invention]

[0005] According to conventional technology, when a printed matter is duplicated, the pattern formed with infrared absorbing ink is not reproduced, so it is possible to determine whether or not duplication has been carried out by shining visible light on the duplicated printed matter.

[0006] However, the technologies described in Patent Documents 1 and 2 above involve forming a pattern with ink on one or both surfaces of the printed matter, which poses the problem of it being time-consuming to vary the shape of the indicia for authenticity determination and the location where the indicia is printed for each printed matter.

[0007] Therefore, this disclosure proposes a printed material for authenticity determination, a manufacturing method for the printed material for authenticity determination, and an authenticity determination system, in which the shape and location of the display for authenticity determination can be freely changed to suit the needs and requests of the user. [Means for solving the problem]

[0008] In order to solve the above problems, the authenticity determining printed matter of the present disclosure is characterized by having a first infrared-transmitting ink layer formed with an infrared-transmitting ink, a second infrared-transmitting ink layer formed with the infrared-transmitting ink and separated from the first infrared-transmitting ink layer by an intermediate layer formed of a material different from the infrared-transmitting ink, and an authenticity determining portion including a pattern formed by removing a portion of at least one of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer with a laser. Effect of the Invention

[0009] According to one aspect of the embodiment, in an information display medium, the shape and location of the display for authenticity determination can be freely changed according to the needs and desires of a user. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing an overview of an anti-counterfeit printed matter according to an embodiment; [Diagram 2] FIG. 1 is a diagram (1) showing a second configuration example of an anti-counterfeit printed matter according to an embodiment. [Diagram 3] FIG. 2 is a diagram showing a second configuration example of the anti-counterfeit printed matter according to the embodiment. [Figure 4]13 is a diagram showing a third example of the configuration of an anti-counterfeit printed matter according to the embodiment. FIG. [Diagram 5] FIG. 13 is a diagram showing a fourth example of the configuration of an anti-counterfeit printed matter according to the embodiment. [Figure 6] 1 is a diagram showing an example of the configuration of an authenticity determination system using anti-counterfeit printed matter according to an embodiment; [Figure 7] FIG. 2 is a hardware configuration diagram illustrating an example of a computer that realizes the functions of the gate device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the following embodiments, the same components are designated by the same reference numerals, and duplicated descriptions will be omitted.

[0012] (1. EMBODIMENT) (1-1. First configuration example) FIG. 1 is a diagram showing an overview of an anti-counterfeit printed matter according to an embodiment. The anti-counterfeit printed matter 100 is an example of an authenticity determining printed matter of the present disclosure. The anti-counterfeit printed matter 100 may be in any form as long as it is a printed matter that serves as a medium for displaying or storing information. The anti-counterfeit printed matter 100 is, for example, a card such as an employee ID card, or a film or sheet printed with ink.

[0013] The left side of Fig. 1 shows an example of the cross-sectional structure of an anti-counterfeit printed matter 100. The anti-counterfeit printed matter 100 shown in Fig. 1 has, from top to bottom, a front design layer 121, a front concealing layer 131, a front IR (Infrared) ink layer 141, a transparent sheet layer 110, a rear IR ink layer 142, a rear concealing layer 132, and a rear design layer 122. The anti-counterfeit printed matter 100 may further include a protective film or the like on the outside of the front design layer 121 and the rear design layer 122 depending on the type and application.

[0014] The front design layer 121 and the back design layer 122 are layers formed by printing with ordinary ink on the front or back of the anti-counterfeit printed matter 100. The front concealing layer 131 and the back concealing layer 132 are layers formed with a known opaque ink or the like.

[0015] The front IR ink layer 141 and the back IR ink layer 142 are layers formed of ink (hereinafter referred to as "IR ink") that has the property of transmitting infrared rays. IR ink has the property of transmitting infrared rays and blocking visible light and ultraviolet rays. Due to its properties, when light such as visible light is irradiated onto the IR ink, the transmitted color of the light changes depending on the film thickness and is recognized by a person (hereinafter referred to as "user"). For example, when no light is irradiated onto the IR ink layer, the user recognizes it as "black," but when light is transmitted through the layer, the user recognizes it as "red" or "green," depending on the film thickness. The transmitted color of the IR ink can be changed depending on the film thickness and properties, and IR ink that can produce various colors is publicly known.

[0016] The transparent sheet layer 110 is located in the center of the anti-counterfeit printed matter 100, and is formed so as to separate the front IR ink layer 141 and the back IR ink layer 142. The transparent sheet layer 110 may also serve as a core material of the anti-counterfeit printed matter 100. For example, the transparent sheet layer 110 is formed of a transparent resin, film, or the like. In the anti-counterfeit printed matter 100, the transparent sheet layer 110 functions as an intermediate layer that bonds the multiple IR ink layers that are stacked together.

[0017] As described above, the anti-counterfeit printed matter 100 according to the embodiment has two IR ink layers, the front IR ink layer 141 and the back IR ink layer 142. When visible light is transmitted through the anti-counterfeit printed matter 100, the user recognizes the color that appears when the light is transmitted through these IR ink layers. In the example of FIG. 1, when both IR ink layers are transmitted, the user recognizes "red color." When only one IR ink layer is transmitted, the user recognizes "green color." Since the anti-counterfeit printed matter 100 includes the front concealing layer 131 and the back concealing layer 132, the structure is such that the IR ink layers cannot be recognized even if the user looks at the front and back sides.

[0018] Furthermore, a predetermined pattern is formed on the anti-counterfeit printed matter 100 by perforating a portion of the surface IR ink layer 141 with a laser using a known laser irradiator. A plan view of the surface of the anti-counterfeit printed matter 100 is shown in the upper right corner of Fig. 1. In the example of Fig. 1, a portion of the anti-counterfeit printed matter 100 is perforated to form a pattern 160 consisting of the characters "NAME".

[0019] 1, the pattern 160 is formed by removing the front IR ink layer 141, so the color of the back IR ink layer 142 (black in this example) is visible from the outside. In this way, any pattern can be formed on the anti-counterfeit printed matter 100, and the IR ink layer in the pattern portion is only one layer of the back IR ink layer 142.

[0020] In this case, when visible light is transmitted through the anti-counterfeit printed matter 100, different colors appear between the pattern 160 and other parts because the number of layers (i.e., film thickness) through which the light passes through the IR ink layer differs.

[0021] For example, as shown in the lower right of Fig. 1, pattern 160 appears as green light due to transmission through only one IR ink layer, while area 161 surrounding pattern 160 appears as red light due to transmission through two IR ink layers.

[0022] If a person who does not know of the existence of the IR ink layer uses a copy machine or the like to reproduce the anti-counterfeiting printed matter 100, the reproduced characters will not show this light. Therefore, it can be determined that the print in question is a reproduction of the anti-counterfeiting printed matter 100.

[0023] In this way, the anti-counterfeit printed matter 100 has laminated IR ink layers, and a pattern for authenticity determination is formed by perforating a part of the layers, so the shape and location of the pattern can be freely changed according to the needs and desires of the user. Also, the anti-counterfeit printed matter 100 allows various combinations of the number and film thickness of the laminated IR ink layers, the properties of the IR ink, etc., so it is possible to form patterns for authenticity determination with a variety of designs.

[0024] After removal by laser, the anti-counterfeit print 100 may be further processed by applying a transparent film or the like to the surface so that the removed areas are less noticeable.

[0025] (1-2. Second configuration example) 2 is a diagram (1) showing a second configuration example of an anti-counterfeit printed matter according to an embodiment. In the example shown in FIG. 2, a cross-sectional view of an anti-counterfeit printed matter 101 and a cross-sectional view of an anti-counterfeit printed matter 102 are shown.

[0026] As shown in Fig. 2, the anti-counterfeit printed matter 101 has been perforated with a laser to remove a portion of the IR ink layer on the front side. This configuration is the same as that in Fig. 1. On the other hand, the anti-counterfeit printed matter 101 has been perforated with a laser to remove a portion of the IR ink layer on the back side.

[0027] A plan view 103 shows a plan view of the anti-counterfeit printed matter 101 or the anti-counterfeit printed matter 102. As shown in the plan view 103, the anti-counterfeit printed matter 101 and the anti-counterfeit printed matter 102 are partially perforated and have a pattern 165 formed thereon.

[0028] Fig. 3 shows an example in which visible light is applied to the anti-counterfeit printed matter 101 or the anti-counterfeit printed matter 102. Fig. 3 is a diagram (2) showing a second configuration example of the anti-counterfeit printed matter according to the embodiment.

[0029] As explained in Fig. 2, the pattern 165 has the same design on both sides, although the perforated sides are different between the front and back, and the number of IR ink layers through which visible light passes is the same. As a result, as shown in Fig. 3, a user recognizes the pattern 165 as green and the surrounding area 166 where light is irradiated as red, regardless of whether it is the anti-counterfeit printed matter 101 or the anti-counterfeit printed matter 102.

[0030] In this way, the anti-counterfeiting printed matter according to the embodiment can form a pattern for determining authenticity by removing a part of at least one of the IR ink layer on the front side or the IR ink layer on the back side with a laser. That is, the anti-counterfeiting printed matter according to the embodiment can form a pattern for determining authenticity regardless of whether the front side or the back side is removed.

[0031] (1-3. Third configuration example) 4 is a diagram showing a third example of the configuration of an anti-counterfeit printed matter according to the embodiment. FIG. 4 shows a cross-sectional configuration of an anti-counterfeit printed matter 104.

[0032] The anti-counterfeit printed matter 104 has a front IR ink layer 141, a back IR ink layer 142, and a transparent sheet layer 110 which is an intermediate layer separating them, as well as white layers 171, 172, 173, and 174. The white layers 171 and the like may be ink layers or layers formed of resin or the like.

[0033] In the third configuration example, a white layer 172 is formed between the front IR ink layer 141 and the transparent sheet layer 110. Similarly, a white layer 173 is formed between the back IR ink layer 142 and the transparent sheet layer 110. With this configuration, the anti-counterfeit printed matter 104 can prevent two IR ink layers from being mistakenly removed during laser removal. In other words, with the third configuration, the technology of the present disclosure can be applied even when there are circumstances that make it difficult to adjust the removal depth when performing laser removal.

[0034] According to the third configuration, as shown in Fig. 3, even if the front IR ink layer 141 is removed, the white layer 172 can remain. Therefore, the anti-counterfeit printed matter 104 appears the same color as the white layer from both the front and back sides, and the color can be unified as a whole. The step at the removed portion can be made less noticeable by, for example, placing a transparent film over it after the laser removal.

[0035] (1-4. Fourth configuration example) Fig. 5 is a diagram showing a fourth example of the configuration of an anti-counterfeit printed matter according to an embodiment. Fig. 5 shows a cross-sectional view, a plan view from the front, and a plan view from the back of an anti-counterfeit printed matter 105. As shown in Fig. 5, the anti-counterfeit printed matter 105 has perforated parts on both the front and back surfaces.

[0036] 5, a pattern 180 is formed by removing the front IR ink layer on the front surface of the anti-counterfeit printed matter 105. A pattern 181 is formed by removing the back IR ink layer on the back surface of the anti-counterfeit printed matter 105.

[0037] When light is shone on the pattern thus formed, as shown on the right side of Figure 5, where light passes through only one IR ink layer (where pattern 180 and pattern 181 do not intersect), green appears. Where light passes through both IR ink layers (where pattern 180 and pattern 181 are not formed), red appears. Furthermore, where no IR ink layer is passed through at all (the central portion where pattern 180 and pattern 181 intersect), visible light is transmitted, or the color of the intermediate layer appears as is.

[0038] In this way, the anti-counterfeit printed matter 105 has patterns formed by laser removal on the front and back sides, so different patterns can be drawn on the front and back sides. This allows the anti-counterfeit printed matter 105 to display with excellent design, in which different colors appear due to differences in the transmission of the IR ink layer in the authenticity determination area formed by the patterns on the front and back sides.

[0039] (1-5. Example of the configuration of an authenticity determination system using anti-counterfeit printed matter) Fig. 6 is a diagram showing a configuration example of an authenticity determination system using an anti-counterfeit printed matter according to an embodiment. Fig. 6 shows an example in which gate opening and closing is controlled by an authenticity determination system including a gate device 200, which is an information processing device, and an anti-counterfeit printed matter 106.

[0040] The gate device 200 is, for example, an information device installed at an entrance or exit of a facility where entrance management is implemented. The gate device 200 may be configured to include, for example, a card reader and a gate unit for physically controlling entrants, or may be only a control device for controlling the physical unit such as the gate unit.

[0041] A user possesses an anti-counterfeit printed matter 106 as an entrance control card such as an employee ID card. The anti-counterfeit printed matter 106 includes an authenticity determination area 190. In the authenticity determination area 190, a pattern of the character "7" is formed by removing the front IR ink layer in a manner that is invisible when not exposed to light.

[0042] When entering the entrance gate, the user holds the anti-counterfeit print 106 over the gate device 200. The gate device 200 includes an acquisition unit 210 that reads information displayed or stored on the anti-counterfeit print 106 to acquire the information.

[0043] The acquisition unit 210 includes an ID reading unit 211 and an irradiation image reading unit 212. The ID reading unit 211 reads information displayed or stored on the anti-counterfeit printed material 106 itself. For example, the ID reading unit 211 has a card reader function, and reads the ID number displayed on the surface of the anti-counterfeit printed material 106 or reads an information storage area such as a barcode written on a card to read the user's identification information (ID) stored in the anti-counterfeit printed material 106. Note that, when the anti-counterfeit printed material 106 has a wireless communication function such as RFID (Radio Frequency Identification), the ID reading unit 211 acquires the ID information stored in the anti-counterfeit printed material 106 by transmitting and receiving information to and from the anti-counterfeit printed material 106.

[0044] The irradiated image reading unit 212 has, for example, an image capturing function and an image recognition function such as a camera. The irradiated image reading unit 212 irradiates light onto the anti-counterfeit print 106 held over the gate device 200, and reads the emerging pattern by image recognition. In the example of FIG. 6, the irradiated image reading unit 212 reads the pattern 191 consisting of the character "7" that appears in the authenticity determination area 190. The irradiated image reading unit 212 uses an OCR (Optical Character Recognition) function to recognize that the pattern 191 indicates the character "7."

[0045] The acquisition unit 210 passes the acquired information to the determination unit 220. The determination unit 220 accesses a database 230 for managing visitors, and acquires information linking the anti-counterfeit print 106 (entrance management card) with the information written in the pattern.

[0046] The linking information is, for example, information linking a user ID with character information written in the authenticity determination area 190. In the example of FIG. 6, "7" is linked to the user ID "A007" as authentication data. In this case, when a user who holds up the anti-counterfeit printed material 106 in which the user ID "A007" is stored attempts to enter the building, if the pattern for authenticity determination formed on the anti-counterfeit printed material 106 is "7", the determination unit 220 determines that the anti-counterfeit printed material 106 is authentic. In other words, when the user ID and the pattern for authenticity determination stored in the anti-counterfeit printed material 106 match the linking information, the determination unit 220 allows the user to enter the building.

[0047] The determination unit 220 sends the determination result to the opening / closing control unit 240. When the gate unit is a physical device, the opening / closing control unit 240 controls the gate unit to open or to keep the gate unit closed. Alternatively, when the gate unit is controlled by an electronic lock or the like, the opening / closing control unit 240 electronically controls the opening and closing of the gate unit.

[0048] 6, the opening / closing control unit 240 controls the gate to be opened when the determination unit 220 determines that the user is genuine. On the other hand, the opening / closing control unit 240 controls the gate to be closed when the determination unit 220 determines that the user is false.

[0049] In this way, in the configuration example of the authenticity determination system using the anti-counterfeit printed matter, the authenticity determination system determines the authenticity of the anti-counterfeit printed matter 106 or the user based on the matching information such as ID stored in the anti-counterfeit printed matter 106 and the linking information between the authenticity determination pattern 191. In other words, the authenticity determination system determines authenticity not only using the information such as ID stored in the card but also using authenticity determination information that cannot be seen with the naked eye, so that it can accurately restrict the entry of a third party who has forged only the appearance of the card, for example. This allows the authenticity determination system to achieve extremely high security.

[0050] 6, if the irradiated image reading unit 212 has an OCR function and an ID number or the like is visibly written on the anti-counterfeit print 106, the irradiated image reading unit 212 can also perform the process executed by the ID reading unit 211. In this case, the acquisition unit 210 may have a configuration including only the irradiated image reading unit 212.

[0051] (2. Modifications of the embodiment) (2-1. Printed material for authenticity verification) In the above embodiment, the authenticity determination printed matter is exemplified by the anti-counterfeiting printed matter 100 having a card form. However, the authenticity determination printed matter is not limited to a card, and may be any form as long as it is a medium on which the above-mentioned IR ink layer can be formed. In addition, the authenticity determination printed matter of the present disclosure can be used in all industries for manufacturing, selling, using, etc. as a medium used for authenticity determination.

[0052] (2-2. Printing mode) The design layer, concealment layer, intermediate layer, etc. other than the multiple IR ink layers of the anti-counterfeit printed matter 100, etc., can be configured with any material, shape, etc. In the embodiment, a pigment ink having a property of transmitting infrared rays is assumed as the IR ink, but any ink can be used as the IR ink as long as it has a property of transmitting or blocking infrared rays and has a function of adjusting the color when light passes through. In the embodiment, the IR ink layer is assumed to be formed into a layer of about 5 μm by silk printing, for example, but the printing mode is not limited to this and any method can be adopted. In addition, the white layer, etc. shown in FIG. 4 is not limited to being formed with white ink, etc., and may be composed of ink of any color.

[0053] (3. Other embodiments) The processing according to the above-described embodiment may be implemented in various different forms other than the above embodiment.

[0054] For example, among the processes described in the above embodiments, all or part of the processes described as being performed automatically can be performed manually, or all or part of the processes described as being performed manually can be performed automatically by a known method. In addition, the information including the processing procedures, specific names, various data and parameters shown in the above documents and drawings can be changed arbitrarily unless otherwise specified. For example, the various information shown in each drawing is not limited to the illustrated information.

[0055] In addition, each component of each device shown in the figure is a functional concept, and does not necessarily have to be physically configured as shown in the figure. In other words, the specific form of distribution and integration of each device is not limited to that shown in the figure, and all or part of them can be functionally or physically distributed and integrated in any unit according to various loads, usage conditions, etc.

[0056] Furthermore, the above-described embodiments and modifications can be appropriately combined as long as the processing contents are not contradictory.

[0057] Furthermore, the effects described in this specification are merely examples and are not limiting, and other effects may also be obtained.

[0058] (4. Effects of the Printed Matter for Authenticity Verification According to the Present Disclosure) As described above, the authenticity determining printed matter (anti-counterfeiting printed matter 100 in the embodiment) according to the present disclosure has a first infrared-transmitting ink layer (front IR ink layer 141 in the embodiment), a second infrared-transmitting ink layer (back IR ink layer 142 in the embodiment), an intermediate layer (transparent sheet layer 110 in the embodiment), and an authenticity determining portion (pattern 160 in the embodiment). The first infrared-transmitting ink layer is formed of an infrared-transmitting ink. The second infrared-transmitting ink layer is formed of an infrared-transmitting ink and is separated from the first infrared-transmitting ink layer by an intermediate layer formed of a material different from the infrared-transmitting ink. The authenticity determining portion includes a pattern formed by removing a portion of at least one of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer with a laser.

[0059] In this way, the authenticity determination printed matter according to the present disclosure forms a pattern by removing at least one of the laminated IR ink layers, so that the authenticity determination pattern can be formed in any shape at any location of the user's choice. In other words, the authenticity determination printed matter can freely change the shape and location of the display for authenticity determination according to the needs and requests of the user.

[0060] In addition, the authenticity determining section reveals a pattern used for authenticity determination by a color that changes depending on whether light passes through both or either of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer, or through neither.

[0061] In this way, by laminating IR ink layers, the color that appears when light passes through the printed matter for authenticity determination can be freely adjusted, making it possible to form patterns with a variety of expression modes.

[0062] In addition, the authenticity determination printed matter may further have a fourth layer (such as a white layer 172 in an embodiment) formed between the first infrared-transmitting ink layer and the intermediate layer, and between the second infrared-transmitting ink layer and the intermediate layer.

[0063] In this way, by providing other layers above and below the IR ink layer, the technology disclosed herein can be applied to printed matter for authenticity determination, even in cases where it is difficult to adjust the perforations formed by laser removal.

[0064] The authenticity determination section also includes a pattern formed by combining a first pattern obtained by removing a portion of a first infrared-transmitting ink layer formed on the front side of the authenticity determination printed material, and a second pattern obtained by removing a portion of a second infrared-transmitting ink layer formed on the back side of the authenticity determination printed material, the second pattern having a shape different from that of the first pattern.

[0065] In this way, the authenticity determining unit can form patterns not only on the front side but also on the back side, thereby changing the state of transmission of the IR ink layer, so that patterns of various expression states can be produced.

[0066] Furthermore, the technology disclosed herein may be configured as an authenticity determination system including an authenticity determination printed matter and an information processing device (gate device 200 in an embodiment). The information processing device has a determination unit (determination unit 220 in an embodiment) that determines the authenticity of the authenticity determination printed matter or the authenticity of a person who owns the authenticity determination printed matter based on the matching information stored in the authenticity determination printed matter and the linking information with the pattern.

[0067] In this way, the authenticity determination system according to the present disclosure determines authenticity not only by the information stored in the printed matter, but also by matching that information with a pattern, thereby enabling more secure authenticity determination to be performed.

[0068] (5. Hardware Configuration) Information devices such as the gate device 200 according to the embodiment described above are realized by a computer 1000 having a configuration as shown in Fig. 7, for example. The gate device 200 according to the embodiment will be described below as an example. Fig. 7 is a hardware configuration diagram showing an example of a computer 1000 that realizes the functions of the gate device 200. The computer 1000 has a CPU 1100, a RAM 1200, a ROM (Read Only Memory) 1300, a HDD (Hard Disk Drive) 1400, a communication interface 1500, and an input / output interface 1600. The various components of the computer 1000 are connected by a bus 1050.

[0069] The CPU 1100 operates and controls each unit based on a program stored in the ROM 1300 or the HDD 1400. For example, the CPU 1100 loads the program stored in the ROM 1300 or the HDD 1400 into the RAM 1200 and executes processing corresponding to the various programs.

[0070] The ROM 1300 stores boot programs such as a basic input output system (BIOS) executed by the CPU 1100 when the computer 1000 is started up, and programs that depend on the hardware of the computer 1000 .

[0071] HDD 1400 is a computer-readable recording medium that non-temporarily records programs executed by CPU 1100 and data used by such programs. Specifically, HDD 1400 is a recording medium that records a program that executes a determination process according to the present disclosure, which is an example of program data 1450.

[0072] The communication interface 1500 is an interface for connecting the computer 1000 to an external network 1550 (e.g., the Internet). For example, the CPU 1100 receives data from other devices and transmits data generated by the CPU 1100 to other devices via the communication interface 1500.

[0073] The input / output interface 1600 is an interface for connecting the input / output device 1650 and the computer 1000. For example, the CPU 1100 receives data from an input device such as a keyboard or a mouse via the input / output interface 1600. The CPU 1100 also transmits data to an output device such as a display, a speaker, or a printer via the input / output interface 1600. The input / output interface 1600 may also function as a media interface for reading a program or the like recorded on a predetermined recording medium. The medium may be, for example, an optical recording medium such as a DVD (Digital Versatile Disc) or a PD (Phase change rewritable Disk), a magneto-optical recording medium such as an MO (Magneto-Optical disk), a tape medium, a magnetic recording medium, or a semiconductor memory.

[0074] For example, when the computer 1000 functions as the gate device 200 according to the embodiment, the CPU 1100 of the computer 1000 executes a program loaded onto the RAM 1200 to realize functions of the determination unit 220, etc. Also, the HDD 1400 stores a program for executing a determination process and data such as the database 230. The CPU 1100 reads and executes the program data 1450 from the HDD 1400, but as another example, the CPU 1100 may obtain these programs from other devices via an external network 1550.

[0075] The above describes the embodiments of the present application in detail based on the drawings. However, these are merely examples, and the present invention can be embodied in other forms that include the aspects described in the Disclosure of the Invention section, as well as in other forms that include various modifications and improvements based on the knowledge of those skilled in the art. [Explanation of symbols]

[0076] 100 Anti-counterfeiting printed matter 110 Transparent sheet layer 121 Surface Design Layer 131 Surface Hiding Layer 141 Surface IR ink layer 142 Back IR ink layer 160 patterns 200 Gate device 210 Acquisition Department 220 Judgment section 240 Opening and closing control section

Claims

1. a first infrared-transmitting ink layer formed of an infrared-transmitting ink; a second infrared-transmitting ink layer formed of an infrared-transmitting ink and separated from the first infrared-transmitting ink layer by an intermediate layer formed of a material different from that of the infrared-transmitting ink; an authenticity determination unit including a pattern formed by removing a portion of at least one of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer with a laser; A printed matter for determining authenticity, comprising:

2. The authenticity determination unit is the pattern used for authenticity determination appears by a color that changes depending on whether light passes through both or either of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer, or whether light passes through neither of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer; 2. The printed matter for determining authenticity according to claim 1 .

3. The ink jet recording medium further includes a fourth layer formed between the first infrared ray transmitting ink layer and the intermediate layer, and between the second infrared ray transmitting ink layer and the intermediate layer.

2. The printed matter for determining authenticity according to claim 1 .

4. The authenticity determination unit is the pattern is formed by combining a first pattern obtained by removing a part of the first infrared-transmitting ink layer formed on the front side of the authenticity determination printed matter and a second pattern obtained by removing a part of the second infrared-transmitting ink layer formed on the back side of the authenticity determination printed matter, the second pattern having a different shape from the first pattern, 2. The printed matter for determining authenticity according to claim 1 .

5. A method for manufacturing a printed matter for authenticity determination having an authenticity determination unit for determining the authenticity of a printed matter, comprising: a first infrared-transmitting ink layer formed of an infrared-transmitting ink; a second infrared-transmitting ink layer formed by dividing the first infrared-transmitting ink layer by an intermediate layer formed of a material different from the infrared-transmitting ink, and forming the authenticity determination portion including a pattern for authenticity determination by removing a portion of at least one of the first infrared ray transmitting ink layer and the second infrared ray transmitting ink layer with a laser; A method for producing a printed matter for authenticity determination, comprising the steps of:

6. An authenticity determination system including a printed matter for authenticity determination and an information processing device, The printed matter for authenticity determination is a first infrared-transmitting ink layer formed of an infrared-transmitting ink; a second infrared-transmitting ink layer formed of an infrared-transmitting ink and separated from the first infrared-transmitting ink layer by an intermediate layer formed of a material different from that of the infrared-transmitting ink; an authenticity determining section including a pattern formed by removing a portion of at least one of the first infrared-transmitting ink layer and the second infrared-transmitting ink layer with a laser; The information processing device includes: a determination unit that determines the authenticity of the authenticity determination printed matter or the authenticity of a person who owns the authenticity determination printed matter based on the matching information stored in the authenticity determination printed matter and information linking the pattern; The authenticity determination system is characterized by:

Images