Fabric with code, authenticity determination device, authenticity determination system and authenticity determination method

Abstract

To provide a fabric with a code which is formed of a textile capable of being sewn directly to a garment, an authenticity determination device, an authenticity determination system, and an authenticity determination method.SOLUTION: A tag TAG formed from a fabric with a code is manufactured using a first warp formed from a first fiber dyed by a first dye containing a substance absorbing light of a wavelength band of an ultraviolet light region and emitting light of a wavelength band of a visible light region, a second warp formed from a second fiber dyed by a second dye containing a substance selectively absorbing and emitting light of a wavelength band of visible light, and a weft formed from a third fiber of a color different from that of the second fiber, and is provided with a two-dimensional code C1 formed using the first warp and the weft, and a QR code C2 formed using the second warp and the weft.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a corded fabric, an authenticity determining device, an authenticity determining system, and an authenticity determining method. [Background technology]

[0002] Proposed is an anti-counterfeiting printed material having an identification code that is composed using either multiple types of ink that have different spectral reflectance characteristics to irradiated light or multiple types of ink that have different color development characteristics depending on temperature conditions, in which the ink used to print the identification code is different from the ink used to print an authenticity determination code mixed into the identification code (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-188756 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, there is a method for suppressing the distribution of counterfeit luxury brand clothing by printing a mixture of an identification code and an authenticity determination code on the surface of a packaging box for packaging the clothing, as described in Patent Document 1. However, with this method, there is a risk that the counterfeit luxury brand clothing will be distributed as if it were genuine luxury brand clothing by replacing the clothing contained in the packaging box with counterfeit products and distributing them.

[0005] The present invention has been made in consideration of the above-mentioned reasons, and aims to provide a fabric with a cord formed from a woven fabric that can be sewn directly onto clothing, etc., an authenticity determining device, an authenticity determining system, and an authenticity determining method. [Means for solving the problem]

[0006] In order to achieve the above object, the corded fabric according to the present invention comprises: The textile fabric is woven using first warp threads formed from first fibers dyed with a first dye containing a substance that absorbs light in the ultraviolet wavelength band and emits light in the visible wavelength band, second warp threads formed from second fibers dyed with a second dye containing a substance that selectively absorbs and emits light in the visible wavelength band, and weft threads formed from a third fiber of a different color from the second fibers, and is provided with a first cord formed using the first warp threads and the weft threads and a second cord formed using the second warp threads and the weft threads. Effect of the Invention

[0007] According to the present invention, the first cord is formed using a first warp thread formed from a first fiber dyed with a first dye containing a substance that absorbs light in the ultraviolet wavelength band and emits light in the visible wavelength band, and can be sewn onto a textile product such as clothing. This makes it possible to prevent counterfeits of the product from being distributed, compared to a case in which the first code is printed on a box or the like that contains the textile product. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1A is a diagram showing an example of a tag made from a corded fabric in accordance with an embodiment of the present invention, and FIG. 1B is a diagram showing an example of a garment to which a tag made from a coated fabric is sewn. [Diagram 2] 1 is a schematic configuration diagram of an authenticity determination system according to an embodiment; [Diagram 3] 1 is a block diagram showing a hardware configuration of an authenticity determination system according to an embodiment; [Figure 4] 1 is a block diagram showing a functional configuration of an authenticity determination system according to an embodiment; [Diagram 5] FIG. 4 is a sequence diagram showing an example of the operation of the authenticity determination system according to the embodiment. [Figure 6]11 is a flowchart showing an example of the flow of an authenticity determination process executed by a cloud server according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The cord fabric of this embodiment is a fabric with an anti-counterfeiting cord for preventing counterfeiting of products formed from the fabric, and is made using a first warp thread formed from a first fiber dyed with a first dye containing a substance that absorbs light in the ultraviolet wavelength band and emits light in the visible wavelength band, a second warp thread formed from a second fiber dyed with a second dye containing a substance that selectively absorbs and emits light in the visible wavelength band, and a weft thread formed from a third fiber of a different color from the second fiber, and is provided with a first cord formed using the first warp thread and weft thread, and a second cord formed using the second warp thread and weft thread.

[0010] The corded fabric according to the present embodiment is a tag TAG sewn onto clothing, for example, as shown in FIG. 1(A). The tag TAG is provided with a two-dimensional code C1 and a QR code (registered trademark) C2. The two-dimensional code C1 portion is made of a jacquard weave using a first warp thread and a weft thread formed from a first fiber dyed with a first dye containing a substance that absorbs light in a wavelength band of ultraviolet light and emits light in a wavelength band of visible light. The QR code C2 portion is made of a jacquard weave using a second warp thread and a weft thread formed from a second fiber containing a second dye containing a substance that selectively absorbs and emits light in a wavelength band of visible light. Here, the weft thread is made of a third fiber of a different color from the second fiber forming the first warp thread.

[0011] The first and second fibers may be fibers having micropores or irregular projections and recesses on their surfaces ranging from 0.001 μm to several μm in size. The first dye has a property that the phosphor contained therein fluoresces when irradiated with ultraviolet light. The ultraviolet light-emitting phosphor is one that is excited by ultraviolet light and emits a spectrum peak in the visible light wavelength range when it returns to a lower energy level, such as Ca2B5O9Cl:Eu 2+ ,CaWO4,ZnO:Zn2SiO4Mn,Y2O2S:Eu,ZnS:Ag,YVO4:Eu,Y2O3:Eu,Gd2O2S:Tb,La2O2S:Tb,Y3Al5O 12 :Ce, etc. The second dye is, for example, a normal black dye.

[0012] The tag TAG of this embodiment is folded in half with a crease between the part where the two-dimensional code C1 is provided and the part where the QR code C2 is provided, and sewn to the lining fabric of the clothing CL1, as shown in Figure 1(B), for example.

[0013] The authenticity determination system according to this embodiment differs from embodiment 1 in that it includes a terminal device that has a function of capturing an image of the first code and the second code of a package on which the first code and the second code are printed, and identifying determination information and product identification information corresponding to the first code and the second code, but does not determine the authenticity of the product. In this embodiment, in addition to the terminal device, it includes determination standard information that indicates a combination of determination information and product identification information corresponding to the first code and the second code printed on the package, respectively, and serves as a standard for determining the authenticity of the product, and an authenticity determination unit that determines the authenticity of a product such as clothing based on the determination information and determination standard information identified by the terminal device.

[0014] The authenticity determination system using the above-mentioned tag TAG according to the present embodiment includes, for example, a terminal device 1 owned by a clothing manufacturer that manufactures clothing CL, an automatic loom 4 owned by a textile manufacturer that manufactures the coded tag TAG, and a cloud server 2, as shown in FIG. 2. The terminal device 1, the cloud server 2, and the automatic loom 4 are capable of communicating with each other via a network NW1. First, a textile manufacturer uses the automatic loom 4 to manufacture a tag TAG provided with a QR code C2 and a two-dimensional code C1, and supplies the manufactured tag TAG to, for example, the clothing manufacturer that manufactures clothing CL1. Here, the textile manufacturer weaves a coded fabric provided with a plurality of pairs of QR codes C2 and two-dimensional codes C1 using the automatic loom 4, and cuts the woven coded fabric into each area provided with a pair of QR codes C2 and two-dimensional codes C1, thereby manufacturing a plurality of tags TAG. Meanwhile, the clothing manufacturer sews multiple tags TAG supplied by the textile manufacturer onto each of the multiple pieces of clothing CL1 that it has manufactured. This makes each of the multiple pieces of clothing CL1 identifiable by the sewn-in tag TAG. Then, the clothing CL1 with the tag TAG sewn-in is delivered from the clothing manufacturer that produced it to the retailer.

[0015] The automatic loom 4 is, for example, a jacquard loom, and as shown in Fig. 3, includes a weaving unit 41 for weaving a corded fabric, and a control unit 40. The weaving unit 41 includes a plurality of healds, each of which has a plurality of first warp threads and a plurality of second warp threads for producing the corded fabric inserted at its tip, and weaves the corded fabric by raising and lowering the plurality of healds based on a control signal input from the control unit 40. The control unit 40 includes a heald control unit 411, a criterion information notification unit 412, and a weaving information storage unit 431. The weaving information storage unit 431 stores a plurality of types of preset judgment information that are the basis of the two-dimensional code C1, and a plurality of types of preset product identification information that are the basis of the QR code C2.

[0016] The heald control unit 411 selects a combination of the determination information and the product identification information from among the determination information and the product identification information stored in the weaving information storage unit 431. Next, the heald control unit 411 generates weaving parameter information for forming the QR code C2 and weaving parameter information for forming the two-dimensional code C1 based on the selected determination information and the product identification information. Then, the heald control unit 411 generates control information including the generated weaving parameter information and outputs it to the weaving unit 41. In addition, the heald control unit 411 notifies the determination criterion information notification unit 412 of the selected combination of the determination information and the product identification information.

[0017] The judgment criterion information notification unit 412 generates judgment criterion information indicating a combination of the judgment information and the product identification information notified by the heald control unit 411, and generates judgment criterion notification information including the generated judgment criterion information and transmits it to the cloud server 2.

[0018] The terminal device 1 includes a CPU (Central Processing Unit) 101, a main memory unit 102, an auxiliary memory unit 103, a display unit 104, an input unit 105, a communication unit 106, an imaging unit 151, an ultraviolet light source 107, and a bus 109 connecting each unit. The main memory unit 102 is a volatile memory such as a RAM (Random Access Memory) and is used as a working area for the CPU 101. The auxiliary memory unit 103 is a non-volatile memory such as a semiconductor flash memory and stores programs for realizing various functions of the authenticity determination device 1. The display unit 104 is a liquid crystal display, an organic EL (Electro-luminescence) display, or the like, and displays various information. The input unit 105 is, for example, a touch pad placed on the display unit 104, and receives various operation information according to user operations and outputs the received operation information to the CPU 101. The communication unit 106 has an interface for connecting to the network NW1. The imaging unit 151 has a camera, and transfers image information obtained by capturing an image of the two-dimensional code C1 and the QR code C2 of the tag TAG to the CPU 101. The ultraviolet light source 107 has, for example, an LED (Light Emitting Diode) that emits ultraviolet light, and turns on the LED based on control information transferred from the CPU 101.

[0019] 4, the CPU 101 reads out a program stored in the auxiliary storage unit 103 into the main storage unit 102 and executes it, thereby functioning as a reception unit 111, an imaging control unit 112, a display control unit 113, a code analysis unit 114, a light source control unit 115, a judgment request unit 116, and a judgment result acquisition unit 119. In addition, the auxiliary storage unit 103 has a judgment information storage unit 131, and the main storage unit 102 has an image buffer 121.

[0020] The reception unit 111 receives the operation contents performed by the user on the input unit 105, generates operation information according to the received operation contents, and notifies the imaging control unit 112, the display control unit 113, the code analysis unit 114, the light source control unit 115, and the judgment request unit 116. When the reception unit 111 receives a product history confirmation operation to read the two-dimensional code C1 or the QR code C2, the imaging control unit 112 controls the imaging unit 151 to perform imaging processing. At this time, the imaging unit 151 transfers captured image information obtained by the imaging processing to the image buffer 121. The display control unit 113 causes the display unit 104 to display the captured image information stored in the image buffer 121. In addition, when the display control unit 113 is notified of judgment result information described later from the judgment result acquisition unit 119, it forms a result notification image notifying the judgment result based on the notified judgment result information and causes the display unit 104 to display it.

[0021] After the reception unit 111 receives the above-mentioned product registration operation and product history confirmation operation, the code analysis unit 114 extracts a two-dimensional code image and a QR code image from the captured image indicated by the captured image information newly stored in the image buffer 121. Here, the code analysis unit 114 extracts the two-dimensional code image and the QR code image using an edge detection method for the two-dimensional code image and the QR code image, such as a graph cut method. Then, the code analysis unit 114 analyzes the extracted two-dimensional code image and the QR code image to identify the determination information and the product identification information corresponding to the two-dimensional code image and the QR code image, and stores the identified determination information and the product identification information in the determination information storage unit 131.

[0022] When the reception unit 111 receives an operation for reading the two-dimensional code C1 in the above-mentioned product history checking operation, the light source control unit 115 turns on the ultraviolet light source 107. On the other hand, when the reception unit 111 receives an operation for reading the QR code C2 in the above-mentioned product history checking operation, the light source control unit 115 turns off the ultraviolet light source 107.

[0023] When new judgment information and product identification information are stored in the judgment information storage unit 131 after the reception unit 111 receives the above-mentioned product history confirmation operation, the judgment request unit 116 generates judgment request information including the judgment information and product identification information stored in the judgment information storage unit 131 and transmits it to the cloud server 2. When the judgment result acquisition unit 119 acquires the judgment result notification information transmitted from the cloud server 2, it extracts the judgment result information included in the acquired judgment result notification information and notifies the display control unit 113.

[0024] 3, the cloud server 2 includes a CPU 201, a main memory unit 202, an auxiliary memory unit 203, a communication unit 206, and a bus 209 connecting the various units. The CPU 201 includes, for example, a multi-core processor for use as a server. The main memory unit 202 is a volatile memory and is used as a working area for the CPU 201, and the auxiliary memory unit 203 is a non-volatile memory and stores programs for realizing various functions of the cloud server 2002. The communication unit 206 includes an interface for connecting to the wide area network NW1.

[0025] The CPU 201 reads out the program stored in the auxiliary storage unit 203 into the main storage unit 202 and executes it, thereby functioning as a criterion information acquisition unit 211, an authenticity determination request acquisition unit 212, an authenticity determination unit 213, and a determination result notification unit 214, as shown in Fig. 4. The auxiliary storage unit 203 shown in Fig. 3 also has a criterion information storage unit 231, as shown in Fig. 4. The criterion information storage unit 231 stores the determination information indicated by the above-mentioned criterion information and the product identification information in association with each other.

[0026] When the criterion information acquisition unit 211 acquires the above-mentioned criterion notification information transmitted from the automatic loom 4, it extracts the criterion information included in the acquired criterion notification information. Then, based on a combination of the criterion information and the product identification information indicated by the criterion information, the criterion information acquisition unit 2211 stores the criterion information and the product identification information in the criterion information storage unit 231 in association with each other.

[0027] When the authenticity judgment request acquisition unit 212 acquires the aforementioned judgment request information transmitted from the terminal device 1, it extracts the judgment information and product identification information contained in the acquired judgment request information, and notifies the authenticity judgment unit 213 of the extracted judgment information and product identification information.

[0028] The authenticity determination unit 213 performs authenticity determination of the clothing CL1 to which the tag TAG is sewn, based on the combination of the determination information and the product identification information stored in the determination criterion information storage unit 231 and the combination of the determination information and the product identification information notified from the authenticity determination request acquisition unit 212. Specifically, the authenticity determination unit 213 determines whether or not the combination of the determination information and the product identification information notified from the authenticity determination request acquisition unit 212 exists among the combinations of the determination information and the product identification information stored in the determination criterion information storage unit 231, and if it exists, determines that the clothing CL1 to which the tag TAG is sewn is an authentic product, and if it does not exist, determines that it is a counterfeit product. The authenticity determination unit 213 notifies the determination result information indicating the determination result to the determination result notification unit 214. The determination result notification unit 214 generates determination result notification information including the notified determination result information and transmits it to the terminal device 1.

[0029] Next, the operation of the authenticity determination system according to the present embodiment will be described with reference to FIG. 5. First, when a weaver performs a weaving start operation to start weaving the coded fabric that is the basis of the tag TAG having the above-mentioned two-dimensional code C1 and QR code C2 by the automatic loom 4, the automatic loom 4 starts weaving the coded fabric (step S1). Next, when a weaver performs a weaving end operation to end weaving by the automatic loom 4, the automatic loom 4 ends weaving the coded fabric (step S2). Next, the automatic loom 4 generates determination criterion notification information including determination criterion information indicating a combination of determination information and product identification information corresponding to each of the two-dimensional code C1 and QR code C2 provided on the coded fabric (step S3). Then, the generated determination criterion notification information is transmitted from the automatic loom 4 to the cloud server 2 (step S4). On the other hand, when the cloud server 2 acquires the aforementioned judgment criterion notification information transmitted from the automatic loom 4, it extracts the judgment criterion information contained in the acquired judgment criterion notification information, and stores the combination of the judgment information and the product identification information indicated by the extracted judgment criterion information in the judgment criterion information storage unit 231 (step S5).

[0030] Then, suppose that the retailer of the clothing CL1 or the customer who purchased the clothing CL1 performs the above-mentioned product history confirmation operation on the terminal device 1. In this product history confirmation operation, an operation is performed to sequentially capture images of the two-dimensional code C1 and the QR code C2 of the tag TAG sewn to the clothing CL1. In this case, the terminal device 1 captures an image of the two-dimensional code C1 on the tag TAG with the ultraviolet light source 107 turned on, and captures an image of the QR code C2 with the ultraviolet light source 107 turned off (step S6). Here, the terminal device 1 stores captured image information indicating the captured images obtained by capturing the two-dimensional code and the QR code in the image buffer 121.

[0031] Next, the terminal device 1 extracts a two-dimensional code image and a QR code image from the captured image indicated by the captured image information stored in the image buffer 121, and analyzes the extracted two-dimensional code image and QR code image to identify the determination information and product identification information corresponding to the two-dimensional code image and the QR code image. Then, the terminal device 1 stores the identified determination information and product identification information in the determination information storage unit 131 (step S7). Next, the terminal device 1 generates determination request information including the determination information and product identification information stored in the determination information storage unit 131 (step S8), and the generated determination request information is transmitted from the terminal device 1 to the cloud server 2 (step S9).

[0032] On the other hand, when the cloud server 2 acquires the judgment request information, it extracts the judgment information and the product identification information included in the acquired judgment request information (step S10). After that, the cloud server 2 performs the authenticity judgment of the clothing CL1 to which the tag TAG corresponding to the judgment request information is sewn, based on the combination of the judgment information and the product identification information stored in the judgment criterion information storage unit 231 and the combination of the extracted judgment information and the product identification information (step S11). Next, the cloud server 2 generates the judgment result notification information including the judgment result information indicating the judgment result (step S12), and the generated judgment result notification information is transmitted from the cloud server 2 to the terminal device 1 (step S13). On the other hand, when the terminal device 1 acquires the judgment result notification information transmitted from the cloud server 2, it extracts the judgment result information included in the acquired judgment result notification information (step S14), and forms the result notification image indicating the result of the authenticity judgment based on the extracted judgment result information, and displays it on the display unit 104 (step S15).

[0033] Next, the authenticity determination process executed by the cloud server 2 according to the present embodiment will be described with reference to FIG. 6. This authenticity determination process is started when a program for executing the authenticity determination process is started in the cloud server 2. First, the judgment criterion information acquisition unit 211 judges whether or not the judgment criterion notification information transmitted from the automatic loom 4 has been acquired (step S101). If the judgment criterion information acquisition unit 211 judges that the judgment criterion notification information has not been acquired (step S101: No), the process of step S103 described later is executed. On the other hand, if the judgment criterion information acquisition unit 211 judges that the judgment criterion notification information has been acquired (step S101: Yes), the judgment criterion information acquisition unit 211 extracts the judgment criterion information included in the acquired judgment criterion notification information. Then, the judgment criterion information acquisition unit 211 stores a combination of the judgment information and the product identification information indicated by the judgment criterion information in the judgment criterion information storage unit 231 in association with each other (step S102).

[0034] Next, the authenticity determination request acquisition unit 212 judges whether or not the above-mentioned judgment request information transmitted from the terminal device 1 has been acquired (step S103). If the authenticity determination request acquisition unit 212 judges that the judgment request information has not been acquired (step S103: No), the process of step S101 is executed again. On the other hand, if the authenticity determination request acquisition unit 212 judges that the judgment request information has been acquired (step S103: Yes), it extracts the judgment information and the product identification information included in the acquired judgment request information (step S104) and notifies the authenticity determination unit 213 of the extracted judgment information and the product identification information. Next, the authenticity determination unit 213 performs an authenticity determination of the clothing CL1 to which the tag TAG is sewn, based on the combination of the determination information and the product identification information stored in the determination criteria information storage unit 231 and the combination of the determination information and the product identification information notified by the authenticity determination request acquisition unit 212 (step S105), and notifies the determination result information indicating the determination result to the determination result notification unit 214. After that, the determination result notification unit 214 generates determination result notification information including the notified determination result information and transmits it to the terminal device 1 (step S106). Next, the process of step S101 is executed again.

[0035] As described above, the two-dimensional code C1 formed using the first warp threads formed from the first fiber dyed with the above-mentioned first dye can be sewn directly onto the clothing CL1. This makes it possible to prevent counterfeits of the clothing CL1 from being distributed, compared to the case where the two-dimensional code C1 is printed on a box or the like that contains the clothing CL1.

[0036] Furthermore, in the authenticity determination system according to the present embodiment, the clothing manufacturer that produces the clothing CL1 does not need to register a combination of the determination information indicated by the two-dimensional code C1 and the product identification information indicated by the QR code C2, thereby reducing the workload of the clothing manufacturer in determining the authenticity of the clothing CL1.

[0037] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment. For example, not only the two-dimensional code but also the QR code may indicate information for use in determining the authenticity of the clothing CL1. In this case, the two-dimensional code and the QR code may indicate numerical values, and the numerical values ​​may be set to form a random number sequence.

[0038] In addition, the various functions of the cloud server 2 according to the present disclosure may be realized by software, firmware, or a combination of software and firmware. In this case, the software or firmware may be written as a program, and the program may be stored and distributed in a computer-readable recording medium such as a flexible disk, a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc), or an MO (Magneto-Optical Disc), and the program may be read and installed in a computer to configure a computer capable of realizing each of the above-mentioned functions. In addition, when each function is realized by sharing the work between an OS (Operating System) and an application, or by cooperation between the OS and an application, only the parts other than the OS may be stored in the recording medium.

[0039] Furthermore, each program can be superimposed on a carrier wave and distributed via a network. For example, the program can be posted on a bulletin board (BBS, Bulletin Board System) on the network and distributed via the network. These programs can then be started and run under the control of the OS in the same way as other application programs, thereby enabling the above-mentioned processing to be performed. [Industrial Applicability]

[0040] The present disclosure is suitable for use as a coded fabric and an authenticity determination system for ensuring the authenticity of textile products such as clothing. [Explanation of symbols]

[0041] 1: terminal device, 2: cloud server, 4: automatic loom, 40: control unit, 41: weaving unit, 101, 201: CPU, 102, 202: main memory unit, 103, 203: auxiliary memory unit, 104: display unit, 105: input unit, 106, 206: communication unit, 107: ultraviolet light source, 109, 209: bus, 111: reception unit, 112: imaging control unit, 113: display control unit, 114: code analysis unit, 115: light source control unit, 116: judgment criteria information notification unit, 117: judgment Standard information acquisition unit, 121: image buffer, 131: judgment information storage unit, 151: imaging unit, 116: judgment request unit, 119: judgment result acquisition unit, 211: judgment standard information acquisition unit, 212: authenticity judgment request acquisition unit, 213: authenticity judgment unit, 214: judgment result notification unit, 231: judgment standard information storage unit, 411: heddle control unit, 412: judgment standard information notification unit, 431: weaving information storage unit, C1: two-dimensional code, C2: QR code, CL1: clothing, NW1: network

Claims

1. The fabric is woven using a first warp thread formed from a first fiber dyed with a first dye containing a substance that absorbs light in an ultraviolet wavelength band and emits light in a visible wavelength band, a second warp thread formed from a second fiber dyed with a second dye containing a substance that selectively absorbs and emits light in a visible wavelength band, and a weft thread formed from a third fiber of a different color from the second fiber, and the fabric is provided with a first cord formed from the first warp thread and the weft thread, and a second cord formed from the second warp thread and the weft thread. Corded fabric.

2. An authenticity determination system using a corded fabric sewn onto a product, the corded fabric being made using a first warp thread formed from a first fiber dyed with a first dye containing a substance that absorbs light in an ultraviolet wavelength band and emits light in a visible wavelength band, a second warp thread formed from a second fiber dyed with a second dye containing a substance that selectively absorbs and emits light in a visible wavelength band, and a weft thread formed from a third fiber of a different color from the second fiber, the corded fabric being provided with a first cord formed from the first warp thread and the weft thread and a second cord formed from the second warp thread and the weft thread, a terminal device having an imaging unit, an ultraviolet light source that emits light in an ultraviolet wavelength band, and a code analysis unit that identifies information for determining authenticity of the product corresponding to the first code image by analyzing a first code image obtained by imaging the first code by the imaging unit while the first code is irradiated with light from the ultraviolet light source, and identifies product identification information for identifying the product corresponding to the second code image by analyzing a second code image obtained by imaging the second code by the imaging unit; a loom for producing the corded fabric; a determination standard information serving as a standard for determining the authenticity of the product, the determination standard information indicating a combination of the determination information and the product identification information corresponding to the first code and the second code provided on the corded fabric produced by the loom and sewn to the product, and an authenticity determination unit performing an authenticity determination of the product based on the determination information and the determination standard information specified by the terminal device. Authenticity determination system.

3. A method for determining authenticity using a corded fabric sewn onto a product, the corded fabric being made using a first warp thread formed from a first fiber dyed with a first dye containing a substance that absorbs light in an ultraviolet wavelength band and emits light in a visible wavelength band, a second warp thread formed from a second fiber dyed with a second dye containing a substance that selectively absorbs and emits light in a visible wavelength band, and a weft thread formed from a third fiber of a different color from the second fiber, the corded fabric being provided with a first cord formed from the first warp thread and the weft thread and a second cord formed from the second warp thread and the weft thread, an authenticity determination system analyzing a first code image obtained by imaging the first code provided on the corded fabric with the imaging unit while the first code is irradiated with light from an ultraviolet light source, thereby identifying information for determining authenticity of the product corresponding to the first code image, and analyzing a second code image obtained by imaging the second code provided on the corded fabric with the imaging unit, thereby identifying product identification information for identifying the product corresponding to the second code image; determining whether the product is genuine or not based on determination criteria information, which indicates a combination of the determination information and the product identification information corresponding to the first code and the second code provided on the corded fabric sewn to the product, and determining whether the product is genuine or not based on the determination information and the determination criteria information specified by the terminal device; Authenticity determination method.

Images