Flexible RFID electronic tag for archive management
By employing a multi-layered structural design and waterproofing measures, the problems of flexible RFID electronic tags being unable to bend and remain waterproof have been solved. This enables adhesion and waterproofing performance on curved surfaces, improving the practicality and lifespan of the tags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO BALIYING INFORMATION TECHNOLOGY CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-01
AI Technical Summary
Existing flexible RFID tags cannot be bent, making them unable to be attached to curved surfaces, and they lack waterproofing, leading to water seepage that could compromise chip security.
The design employs a multi-layer structure, including a fabric base layer, an antenna layer, a flexible layer, a paper layer, a wave-absorbing layer, and a protective shell. These layers are bonded together with adhesive to form a flexible RFID electronic tag. The flexible layer is made of rubber or resin material, the protective shell is made of waterproof rubber, and waterproof adhesive is applied between the paper layer and the protective shell. The wave-absorbing layer is magnetically treated to absorb external interference.
It achieves the label's flexible bending capability, allowing it to be applied to curved surfaces, and its waterproof design prevents moisture from entering, protecting the chip and circuitry and extending its service life.
Smart Images

Figure CN224190505U_ABST
Abstract
Description
A flexible RFID electronic tag for record management Technical Field
[0001] This utility model relates to the field of electronic tag technology, specifically a flexible RFID electronic tag for document management. Background Technology
[0002] RFID tags are characterized by their small size, large capacity, long lifespan, and reusability. They support fast reading and writing, non-visual identification, mobile identification, multi-target identification, positioning, and long-term tracking management. When combined with technologies such as the Internet and communications, RFID technology can achieve global tracking of items and information sharing.
[0003] Chinese patent provides a flexible RFID electronic tag, publication number CN222260088U, comprising: a chip, a small-sized rigid substrate, a short-circuit ring disposed on the rigid substrate, a large-sized flexible substrate, and an antenna arm disposed on the flexible substrate; the antenna arm includes a central ring structure and two side vibrator structures, with the two ends of the ring structure respectively connected to the two vibrator structures; the chip is attached to the short-circuit ring and electrically connected to the short-circuit ring; the area enclosed by the ring structure is slightly larger than the area of the short-circuit ring.
[0004] The aforementioned electronic tag adopts a two-layer substrate structure, which reduces the proportion of non-biodegradable rigid substrate, thereby improving the overall flexibility of the product and reducing the risk of environmental pollution. However, it cannot be bent during use, making it impossible to attach to curved surfaces. Furthermore, it lacks waterproofing, which can lead to water leakage during use and affect the safety of the internal chip. Summary of the Invention
[0005] The purpose of this invention is to provide a flexible RFID electronic tag for document management, which solves the problems of existing electronic tags being unable to be bent during use, making them unable to be attached to curved surfaces, and lacking waterproofing, resulting in water leakage during use and affecting the security of the internal chip.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible RFID electronic tag for file management, comprising a fabric base layer and a protective shell, wherein an antenna layer is glued to the top of the fabric base layer, an RFID chip is disposed on the inner wall of the antenna layer, a flexible layer is glued to the top of the antenna layer, a paper layer is glued to the top of the flexible layer, and a wave-absorbing layer is glued to the bottom of the fabric base layer.
[0007] Preferably, the protective shell is disposed on the outside of the fabric base layer, and the bottom end of the wave-absorbing layer and the protective shell are bonded to each other with adhesive.
[0008] Preferably, an adhesive layer is fixedly connected to the bottom end of the protective shell, and a protective layer is provided at the bottom end of the adhesive layer.
[0009] Preferably, the flexible layer is made of rubber or resin to improve the flexibility of the label.
[0010] Preferably, the protective shell is made of waterproof rubber, and waterproof adhesive is applied between the outer wall of the paper layer and the protective shell.
[0011] Preferably, the absorbing layer is magnetically treated to absorb waves and is used in conjunction with the antenna layer.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1) The flexible RFID electronic tags used in this file management system can be bent by the flexible layer, so that they can be attached to bent files, improving their practicality. The wave-absorbing layer can absorb the chaotic waves generated by the outside world, preventing them from affecting the reading of the electronic tag information.
[0014] 2) The flexible RFID electronic tag used for file management has waterproof adhesive on the protective shell and paper layer, which can prevent water from entering the inside of the protective shell during use. This protects the internal RFID chip and circuit, prevents short circuits during use, improves waterproofness and extends service life. Attached Figure Description
[0015] Figure 1 is a schematic diagram of the overall structure of a flexible RFID electronic tag for archive management according to this utility model;
[0016] Figure 2 is a cross-sectional view of the protective shell of a flexible RFID electronic tag for file management according to this utility model;
[0017] Figure 3 is a partial structural separation diagram of a flexible RFID electronic tag for archive management according to this utility model;
[0018] Figure 4 is a partial structural separation bottom view of a flexible RFID electronic tag for file management according to this utility model.
[0019] In the diagram: 1. Fabric base layer; 2. Protective shell; 3. Antenna layer; 4. RFID chip; 5. Flexible layer; 6. Paper layer; 7. Wave-absorbing layer; 8. Adhesive layer; 9. Protective layer. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] Referring to Figures 1-4, a flexible RFID electronic tag for file management includes a fabric base layer 1 and a protective shell 2. An antenna layer 3 is glued to the top of the fabric base layer 1, an RFID chip 4 is disposed on the inner wall of the antenna layer 3, a flexible layer 5 is glued to the top of the antenna layer 3, a paper layer 6 is glued to the top of the flexible layer 5, and a wave-absorbing layer 7 is glued to the bottom of the fabric base layer 1.
[0023] Specifically, the RFID chip 4 uses RFID technology. RFID technology utilizes the transmission characteristics of radio frequency signals and spatial coupling (inductive or electromagnetic coupling) or radar reflection to achieve automatic identification of the identified object. In the RFID system, the reader emits radio wave energy of a specific frequency to drive the electronic tag circuit to send out the internal data. At this time, the reader receives and interprets this data, thereby achieving the purpose of identifying the target. It can store file information and communicate with the reader, thus facilitating the reading of file information. The flexible layer 5 allows the electronic tag to be bent, so it can be attached to curved files, improving practicality. The wave-absorbing layer 7 absorbs external turbulence, preventing it from affecting the reading of electronic tag information. The combination of the wave-absorbing layer 7 and the antenna layer 3 forms an ultra-high frequency anti-metal material, reducing the possibility of metal objects in the identification range and surrounding environment shielding and suppressing the ultra-high frequency antenna working signal.
[0024] Example 2
[0025] Referring to Figure 2, and based on Embodiment 1, the protective shell 2 is further provided on the outside of the fabric base layer 1. The bottom end of the wave-absorbing layer 7 and the protective shell 2 are bonded together with adhesive. An adhesive layer 8 is fixedly connected to the bottom end of the protective shell 2, and a protective layer 9 is provided at the bottom end of the adhesive layer 8. The flexible layer 5 is made of rubber or resin to improve the flexibility of the label. The protective shell 2 is made of waterproof rubber. A waterproof adhesive is applied between the outer wall of the paper layer 6 and the protective shell 2. The waterproof adhesive, as the name suggests, is an adhesive that can be used for bonding and can effectively prevent water from entering the bonding area. It is an acrylic waterproof coating with the characteristics of high efficiency, strong adhesion, and excellent waterproof performance. Common waterproof adhesives mainly include general-purpose waterproof adhesives, flexible waterproof adhesives, silicone waterproof adhesives, polyurethane waterproof adhesives, acrylic waterproof adhesives, etc. The wave-absorbing layer 7 is treated with magnetism for wave absorption and is used in conjunction with the antenna layer 3.
[0026] Specifically, by providing waterproof adhesive to the protective shell 2 and the paper layer 6, moisture can be prevented from entering the interior of the protective shell 2 during use, thereby protecting the internal RFID chip 4 and circuits, preventing short circuits during use, improving waterproofness and extending service life. The protective layer 9 can protect the adhesive on the adhesive layer 8, preventing the adhesive from being contaminated, thus ensuring the firmness of the electronic tag on the file.
[0027] In actual operation, the protective layer 9 is first peeled off, and the electronic tag is attached to the file to facilitate reading the information on the file and timely information acquisition. The flexible layer 5 allows the electronic tag to be bent, so it can be attached to curved files, improving practicality. The wave-absorbing layer 7 absorbs external turbulence, preventing it from affecting the reading of the electronic tag information. Waterproof adhesive is provided on the protective shell 2 and the paper layer 6, so water can be prevented from entering the interior of the protective shell 2 during use, thereby protecting the internal RFID chip 4 and circuits, preventing short circuits during use, improving waterproofness and extending service life.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flexible RFID electronic tag for document management, comprising a fabric base layer (1) and a protective shell (2), characterized in that: The top of the fabric base layer (1) is glued with an antenna layer (3), the inner wall of the antenna layer (3) is provided with an RFID chip (4), the top of the antenna layer (3) is glued with a flexible layer (5), the top of the flexible layer (5) is glued with a paper layer (6), and the bottom of the fabric base layer (1) is glued with a wave-absorbing layer (7).
2. The flexible RFID electronic tag for archive management according to claim 1, characterized in that: The protective shell (2) is disposed on the outside of the fabric base layer (1), and the bottom end of the wave-absorbing layer (7) and the protective shell (2) are bonded together with adhesive.
3. The flexible RFID electronic tag for record management according to claim 1, characterized in that: The bottom of the protective shell (2) is fixedly connected to an adhesive layer (8), and a protective layer (9) is provided at the bottom of the adhesive layer (8).
4. The flexible RFID electronic tag for archive management according to claim 1, characterized in that: The flexible layer (5) is made of rubber or resin to improve the flexibility of the label.
5. A flexible RFID electronic tag for document management according to claim 1, characterized in that: The protective shell (2) is made of waterproof rubber, and waterproof adhesive is applied between the outer wall of the paper layer (6) and the protective shell (2).
6. A flexible RFID electronic tag for document management according to claim 1, characterized in that: The absorbing layer (7) is magnetically treated to absorb waves and is used in conjunction with the antenna layer (3).
Citation Information
Patent Citations
Flexible RFID electronic tag
CN222260088U