Paper RFID card

Abstract

A paper RFID card relates to the technical field of RFID cards and comprises a reverse printing layer, the upper surface of the reverse printing layer is provided with an RFID tag structure, the RFID tag structure comprises a single-sided gap bridge area, an RFID chip and an antenna, the single-sided gap bridge area is connected with the antenna, and the RFID chip is connected with the antenna; the middle layer is arranged on the reverse printing layer; and the front printing layer is arranged on the middle layer. The RFID tag structure is directly arranged on the reverse printing layer, so that the problem that the thickness of the RFID ticket card is increased and the cost is increased due to the fact that multiple non-setting adhesive layers are arranged in part of RFID ticket cards is solved.

Description

Technical Field

[0001] This utility model relates to the field of RFID card technology, specifically paper RFID cards. Background Technology

[0002] An RFID ticket is a contactless automatic identification ticket based on RFID technology. It typically contains an RFID tag, which generally includes a substrate and an antenna and chip mounted on the substrate. The substrate is usually made of PET and is used to communicate with the reader. Its core feature is a highly secure and encryptable integrated circuit chip, which ensures the uniqueness and security of the RFID ticket.

[0003] Because the RFID tag is encapsulated inside the card, it can effectively resist external contamination and physical damage. At the same time, RFID tickets use a contactless identification method, avoiding the failure issues caused by mechanical wear and tear of traditional magnetic cards or barcode tickets, thus significantly improving service life and reliability. Currently, RFID tickets are widely used in various fields such as scenic area entry verification, large-scale event ticket management, public transportation, and access control systems, demonstrating their strong application prospects.

[0004] For example, Chinese patent publication number CN202548883U discloses a disposable paper RFID ticket, which includes, from top to bottom, a front printing layer, a first self-adhesive layer, an electronic tag layer, a second self-adhesive layer, a buffer layer, a third self-adhesive layer, and a back printing layer. This disposable paper RFID ticket, by adding a buffer layer, can cushion the electronic tag layer from damage when the ticket is subjected to strong pressure.

[0005] However, some RFID tickets have multiple layers of adhesive, which increases the thickness of the RFID tickets, leading to higher production costs and reduced environmental friendliness.

[0006] Therefore, there is an urgent need to develop paper-based RFID cards to solve the problems in existing technologies. Utility Model Content

[0007] The purpose of this invention is to provide a paper RFID card that solves the problem mentioned in the background art where the RFID tag structure is directly set on the reverse printing layer, which leads to an increase in the thickness and cost of the RFID ticket due to the presence of multiple layers of self-adhesive in some RFID tickets.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A paper RFID card, comprising:

[0010] A reverse printing layer, wherein an RFID tag structure is provided on the upper surface of the reverse printing layer, the RFID tag structure including a single-sided bridging area, an RFID chip and an antenna, the single-sided bridging area being connected to the antenna, and the RFID chip being connected to the antenna;

[0011] An intermediate layer is disposed on the reverse printed layer;

[0012] A front printing layer is disposed on the intermediate layer.

[0013] Furthermore, the antenna is a screen-printed silver paste antenna, and the reverse printing layer is coated paper or cardboard.

[0014] Furthermore, a chip clearance hole is provided in the intermediate layer; the position of the chip clearance hole corresponds to the position of the RFID chip.

[0015] Furthermore, the intermediate layer is also provided with bridging avoidance holes, the positions of which correspond to the positions of the single-sided bridging areas.

[0016] Furthermore, the thickness of the intermediate layer is less than the thickness of the RFID chip.

[0017] Furthermore, an intermediate adhesive layer is provided between the intermediate layer and the reverse printing layer. The intermediate adhesive layer is disposed on the lower surface of the intermediate layer, and the intermediate layer is bonded to the reverse printing layer through the intermediate adhesive layer.

[0018] Furthermore, a water-based adhesive layer is provided between the front printing layer and the intermediate layer.

[0019] Furthermore, the thickness of the RFID chip is less than or equal to the sum of the thicknesses of the intermediate layer, the water-based adhesive layer, and the intermediate adhesive layer.

[0020] Furthermore, the intermediate layer is white cardboard or coated paper, and the front printing layer is also white cardboard or coated paper.

[0021] Furthermore, the front printed layer is covered with a photolithography film.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] (1) By setting the RFID tag structure on the reverse printing layer, the substrate of the electronic tag layer is replaced by the reverse printing layer, thereby eliminating the substrate of the electronic tag layer and reducing the thickness of the paper RFID card; at the same time, by setting the RFID tag structure on the reverse printing layer, the electronic tag layer is eliminated, avoiding the need to set an adhesive layer between the electronic tag layer and the middle layer or the front printing layer, further reducing the thickness of the paper RFID card.

[0024] (2) By setting chip avoidance holes for avoiding RFID chips on the reverse printing layer and bridge avoidance holes for avoiding single-sided bridge areas in the middle layer, the problem of bulges on paper RFID cards caused by the thickness of RFID chips and single-sided bridge areas is solved, and the paper RFID cards are made flat.

[0025] (3) By making the thickness of the intermediate layer less than the thickness of the RFID chip, and the thickness of the RFID chip less than or equal to the sum of the thicknesses of the intermediate layer, the water-based adhesive layer, and the intermediate adhesive layer, the thickness of the paper RFID card is reduced while ensuring the paper RFID card remains flat.

[0026] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a structural guarantee diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the reverse printing layer of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the intermediate layer of this utility model;

[0030] Figure 4 This is a schematic diagram of the front printing layer of this utility model.

[0031] The markings in the diagram are as follows: 1. Front printed layer; 2. Middle layer; 21. Chip clearance hole; 22. Bridge clearance hole; 3. Back printed layer; 31. RFID chip; 32. Antenna; 33. Single-sided bridge area. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] Paper RFID cards, such as Figure 1 and Figure 2 As shown, it includes:

[0034] The reverse printing layer 3 has an RFID tag structure on its upper surface. The RFID tag structure includes a single-sided bridging area 33, an RFID chip 31, and an antenna 32. The single-sided bridging area 33 is connected to the antenna 32, and the RFID chip 31 is connected to the antenna 32.

[0035] Intermediate layer 2, wherein the intermediate layer 2 is disposed on the reverse printing layer 3;

[0036] A front printing layer 1 is disposed on the intermediate layer 2;

[0037] The reverse printing layer 3 is made of paper, including coated paper or cardstock. In this embodiment, the reverse printing layer 3 is white cardstock with a weight of 170g. Preferably, when cardstock is used, the weight of the cardstock is generally greater than 100g.

[0038] The antenna 32 is a screen-printed antenna 32, which is formed by printing conductive ink on the reverse printing layer 3 using screen printing technology to form the antenna 32 pattern; in this embodiment, the screen-printed antenna 32 is a screen-printed silver paste antenna 32, which is formed by printing silver paste on the reverse printing layer 3 using screen printing technology to form the antenna 32 pattern.

[0039] This application reduces the thickness of the paper RFID card by setting the RFID tag structure on the reverse printing layer 3 and replacing the substrate of the electronic tag layer with the reverse printing layer 3. At the same time, setting the RFID tag structure on the reverse printing layer 3 eliminates the need for the electronic tag layer and avoids the need to set an adhesive layer between the electronic tag layer and the intermediate layer 2 or the front printing layer 1, which further reduces the thickness of the paper RFID card.

[0040] like Figure 3 As shown, the intermediate layer 2 is used to avoid the RFID tag structure on the reverse printing layer 3. The intermediate layer 2 is provided with a chip avoidance hole 21, which is used to avoid the RFID chip 31 on the reverse printing layer 3. The position of the chip avoidance hole 21 corresponds to the position of the RFID chip 31.

[0041] Meanwhile, due to manufacturing issues, the single-sided bridging area 33 of some RFID tag structures is relatively thick. Preferably, the intermediate layer 2 is also provided with a bridging avoidance hole 22, which is used to avoid the single-sided bridging area 33, and the position of the bridging avoidance hole 22 corresponds to the position of the single-sided bridging area 33.

[0042] An intermediate adhesive layer is provided between the intermediate layer 2 and the reverse printing layer 3. The intermediate adhesive layer is disposed on the lower surface of the intermediate layer 2, and the intermediate layer 2 is bonded to the reverse printing layer 3 through the intermediate adhesive layer.

[0043] In this embodiment, the intermediate adhesive layer is a self-adhesive layer. Optionally, the self-adhesive layer may also be provided with clearance holes for avoiding the RFID chip 31 or the single-sided bridging area 33.

[0044] Optionally, the adhesive layer can be made of hot melt adhesive, or the intermediate adhesive layer can also be a hot melt adhesive layer, with the intermediate layer 2 bonded to the reverse printed layer 3 via the hot melt adhesive. Using the hot melt adhesive layer for bonding improves the environmental performance of this product.

[0045] The intermediate layer 2 can be made of white cardboard or coated paper. In this embodiment, the intermediate layer 2 is made of coated paper. The thickness of the intermediate layer 2 is less than the thickness of the RFID chip 31, so as to reduce the thickness of the paper RFID card.

[0046] like Figure 4 As shown, the front printing layer 1 is mainly used to provide stiffness for the paper RFID card. The material of the front printing layer 1 can also be white cardboard or coated paper. The front printing layer 1 is covered with a photolithographic film, which can be used to create optical effects such as laser or pearlescent effects. Preferably, when the front printing layer 1 is white cardboard, the basis weight is generally greater than 200g. In this embodiment, 235g coated white cardboard is used.

[0047] In this embodiment, a water-based adhesive layer is disposed between the front printing layer 1 and the intermediate layer 2, and a hot melt adhesive layer is disposed between the intermediate layer 2 and the back printing layer 3. In this embodiment, the water-based adhesive layer is an environmentally friendly water-based adhesive. The thickness of the water-based adhesive layer is less than the thickness of the hot melt adhesive layer. In this embodiment, the thickness of the water-based adhesive layer is 10 μm, and the thickness of the hot melt adhesive layer is 20 μm.

[0048] The thickness of the intermediate layer 2 is less than the thickness of the RFID chip 31, and the thickness of the RFID chip 31 is less than or equal to the sum of the thicknesses of the intermediate layer 2, the water-based adhesive layer, and the intermediate adhesive layer.

[0049] This application reduces the thickness of the paper RFID card by making the thickness of the intermediate layer 2 less than the thickness of the RFID chip 31, and the thickness of the RFID chip 31 less than or equal to the sum of the thicknesses of the intermediate layer 2, the water-based adhesive layer, and the intermediate adhesive layer, so as to ensure the flatness of the paper RFID card.

[0050] This utility model provides a paper RFID card, which is simple in structure, easy to use, and highly reliable.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A paper RFID card, characterized in that, include: A reverse printing layer, wherein an RFID tag structure is provided on the upper surface of the reverse printing layer, the RFID tag structure including a single-sided bridging area, an RFID chip and an antenna, the single-sided bridging area being connected to the antenna, and the RFID chip being connected to the antenna; An intermediate layer is disposed on the reverse printed layer; A front printing layer is disposed on the intermediate layer.

2. The paper RFID card according to claim 1, characterized in that, The antenna is a screen-printed silver paste antenna, and the reverse printing layer is coated paper or cardboard.

3. The paper RFID card according to claim 1 or 2, characterized in that, The intermediate layer is provided with chip clearance holes; the position of the chip clearance holes corresponds to the position of the RFID chip.

4. The paper RFID card according to claim 3, characterized in that, The intermediate layer is also provided with bridging avoidance holes, the positions of which correspond to the positions of the single-sided bridging areas.

5. The paper RFID card according to any one of claims 1, 2, or 4, characterized in that, The thickness of the intermediate layer is less than the thickness of the RFID chip.

6. The paper RFID card according to claim 5, characterized in that, An intermediate adhesive layer is provided between the intermediate layer and the reverse printing layer. The intermediate adhesive layer is disposed on the lower surface of the intermediate layer, and the intermediate layer is bonded to the reverse printing layer through the intermediate adhesive layer.

7. The paper RFID card according to claim 6, characterized in that, A water-based adhesive layer is provided between the front printing layer and the intermediate layer.

8. The paper RFID card according to claim 7, characterized in that, The thickness of the RFID chip is less than or equal to the sum of the thicknesses of the intermediate layer, the water-based adhesive layer, and the intermediate adhesive layer.

9. The paper RFID card according to any one of claims 6-8, characterized in that, The middle layer is white cardboard or coated paper, and the front printing layer is also white cardboard or coated paper.

10. The paper RFID card according to any one of claims 6-8, characterized in that, The front printed layer is covered with a photolithography film.

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