Anti-counterfeiting electronic tag
By combining a fragile layer and a color-changing layer, the problem of existing electronic tags being easily reused by criminals is solved, achieving multi-dimensional anti-counterfeiting effects and improving anti-counterfeiting effectiveness and tag stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HUAZHE PRINTING CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-17
AI Technical Summary
Existing electronic tags are easily removed by criminals using sophisticated tools, which weakens their anti-counterfeiting effectiveness and harms the rights and interests of businesses and consumers.
It adopts a dual anti-counterfeiting design with a fragile layer and a color-changing layer. The fragile layer is distributed through a fragile band array, which breaks quickly when torn by external force. The color-changing layer undergoes an irreversible color change after being peeled off. Combined with transparent PET material to protect the internal circuit, it ensures that the label cannot be reused.
It achieves multi-dimensional anti-counterfeiting by visually displaying the opened state of the label through physical damage and chemical discoloration, thereby enhancing the anti-counterfeiting effect and protecting brand reputation and consumer rights.
Smart Images

Figure CN224137731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of label technology, and in particular to an anti-counterfeiting electronic label. Background Technology
[0002] In the fields of product anti-counterfeiting and supply chain management, electronic tags are widely used for identification and circulation supervision of various products due to their advantages such as contactless data collection, information storage, and transmission. To prevent electronic tags from being reused by criminals, the industry currently adopts a technical solution of setting a fragile layer in the electronic tag. Through the design of a special structure, the tag is irreversibly damaged when it is peeled off, thereby rendering the tag invalid and achieving the purpose of preventing counterfeiting and reuse.
[0003] However, existing technologies still have significant shortcomings. Some criminals use tools such as blades and thin plastic sheets to slowly separate the labels with delicate manipulation, preventing damage to the fragile layers and avoiding catastrophic damage during removal. This allows them to preserve the label's physical structure and function, enabling them to reuse it for counterfeiting goods and thus gain illegal profits. This not only weakens the anti-counterfeiting effectiveness of electronic tags but also seriously affects the brand reputation of product manufacturers and the legitimate rights and interests of consumers. Therefore, this utility model proposes an anti-counterfeiting electronic tag. Utility Model Content
[0004] The purpose of this invention is to address the problem that existing electronic tags, although employing a fragile layer for anti-counterfeiting and anti-reuse purposes, are easily peeled off by unscrupulous individuals using tools, leading to the tags being reused, weakening their anti-counterfeiting effectiveness, and harming the rights and interests of businesses and consumers. Therefore, this invention proposes an anti-counterfeiting electronic tag.
[0005] The technical solution of this utility model is as follows: an anti-counterfeiting electronic tag, comprising a surface layer, a circuit board layer, a fragile layer and an adhesive layer arranged sequentially from top to bottom; a release paper is provided at the bottom of the adhesive layer, and a color-changing layer is provided inside the adhesive layer.
[0006] Optionally, the color-changing layer is composed of phenolphthalein powder or nitrogen triiodide powder. The phenolphthalein powder reacts with carbon dioxide to change color after contact with air, while the nitrogen triiodide powder changes color due to changes in humidity after contact with air.
[0007] Optionally, the adhesive layer includes an adhesive border and a breathable layer, wherein the breathable layer has a mesh porous structure.
[0008] Optionally, the surface layer is made of transparent PET material, the circuit board layer integrates the basic circuit elements of the electronic tag, and the adhesive layer is an acrylic pressure-sensitive adhesive layer.
[0009] Optionally, the release paper is silicone paper or glassine paper.
[0010] Optionally, the surface layer is bonded to the circuit board layer, the circuit board layer to the fragile layer, and the fragile layer to the adhesive layer using EVA adhesive.
[0011] Optionally, the fragile layer includes multiple sets of fragile strips, which are distributed in an equidistant array. The fragile strips are made of fragile paper material and break when torn by external force.
[0012] Optionally, an NXP chip and an FPC antenna are soldered onto the circuit board layer to enable the NFC wireless communication function of the electronic tag.
[0013] In summary, this application includes at least one of the following beneficial technical effects:
[0014] This invention achieves multi-dimensional anti-counterfeiting through a dual anti-counterfeiting design of a fragile layer and a color-changing layer. The fragile layer is made of fragile paper material, distributed in an equidistant array, and breaks quickly when torn by external force, forming obvious damage marks. The phenolphthalein powder or nitrogen triiodide powder in the color-changing layer will undergo an irreversible color change after the label is peeled off and air enters. The two anti-counterfeiting methods complement each other, visually showing the label's opened state from both physical damage and chemical color change aspects, effectively preventing the label from being completely peeled off and reused, and greatly improving the anti-counterfeiting effect.
[0015] Furthermore, the transparent PET material on the surface layer is wear-resistant and scratch-resistant, protecting the internal circuit components; the NXP chip and FPC antenna on the circuit board layer ensure stable and efficient NFC wireless communication; the acrylic pressure-sensitive adhesive layer on the adhesive layer, combined with the breathable layer, can not only adhere firmly but also allow air to pass through, and the release paper makes it easy to store, transport, and peel off the label. The overall design takes into account both the stability of the label performance and the ease of use, meeting the needs of commodity circulation and management.
[0016] In conclusion, this utility model effectively prevents the reuse of electronic tags, not only strengthening anti-counterfeiting capabilities but also protecting the brand reputation of product manufacturers and the legitimate rights and interests of consumers. Attached Figure Description
[0017] Figure 1 A schematic diagram of the structure of an anti-counterfeiting electronic tag is provided;
[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0019] Figure 3 for Figure 1 A schematic diagram of the disassembled structure.
[0020] Figure label:
[0021] 1. Surface layer; 2. Circuit board layer; 3. Fragile layer; 31. Fragile strip; 4. Adhesive layer; 41. Adhesive border; 42. Breathable layer; 5. Release paper; 6. Color-changing layer. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0023] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example
[0028] like Figures 1 to 3As shown, the present invention proposes an anti-counterfeiting electronic label, comprising, from top to bottom, a surface layer 1, a circuit board layer 2, a fragile layer 3, and an adhesive layer 4. The surface layer 1 is bonded to the circuit board layer 2, the circuit board layer 2 to the fragile layer 3, and the fragile layer 3 to the adhesive layer 4 using EVA adhesive. EVA adhesive possesses excellent flexibility and anti-aging properties, ensuring a strong bond between the layers while simultaneously allowing for synchronized deformation of each layer when the label is subjected to external force, effectively enhancing the overall stability of the label structure.
[0029] The fragile layer 3 comprises multiple sets of fragile bands 31, which are evenly spaced in an array to facilitate observation of the color-changing effect of the color-changing layer 6 through the gaps between them. The fragile bands 31 are made of fragile paper and break when torn by external force. This unique array design not only significantly increases the difficulty of external damage, making it difficult for criminals to completely peel off the label, but also ensures that the fragile bands 31 will quickly break under abnormal external force, forming obvious and irreparable damage marks, clearly showing that the label has been opened.
[0030] The surface layer 1 is made of transparent PET material, which has high transparency, wear resistance, and scratch resistance. It clearly displays the internal structure of the label, facilitating observation of the color-changing layer 6, while effectively protecting the internal circuit board layer 2 from external physical damage and environmental corrosion, extending the lifespan of the electronic tag. The circuit board layer 2 integrates the basic circuit components of the electronic tag. An NXP chip and an FPC antenna are soldered onto the circuit board layer 2 to enable the electronic tag's NFC wireless communication function. The combination of the NXP chip and FPC antenna provides efficient data transmission capabilities and stable signal reception performance, enabling fast and accurate data interaction with reading and writing devices, meeting the needs of rapid product circulation and traceability management. The adhesive layer 4 is an acrylic pressure-sensitive adhesive layer, including an adhesive border 41 and a breathable layer 42. The breathable layer 42 has a mesh-like porous structure. The adhesive border 41 provides strong adhesion, ensuring a firm bond between the label and the product surface; the mesh-like porous structure of the breathable layer 42 allows air to come into contact with the color-changing layer 6 after the label is peeled off, facilitating the color change of the color-changing layer 6 upon contact with air, thus serving as a warning.
[0031] A release paper 5, made of silicone paper or glassine paper, is placed at the bottom of the adhesive layer 4. The release paper 5 has excellent anti-stick properties, effectively protecting the adhesiveness of the adhesive layer 4 when the label is not in use, facilitating label storage and transportation. When in use, the release paper 5 can be easily peeled off, ensuring a convenient and efficient application process. Inside the adhesive layer 4 is a color-changing layer 6, composed of phenolphthalein powder or nitrogen triiodide powder. Phenolphthalein powder reacts with carbon dioxide upon contact with air and changes color, while nitrogen triiodide powder changes color due to humidity changes upon contact with air. This color-changing layer 6 provides double anti-counterfeiting protection for the label. Once the label is peeled off, air enters the adhesive layer 4, and the color-changing layer 6 rapidly undergoes an irreversible color change. Whether observed through the gap in the fragile layer 3 or directly examining the adhesive layer 4, it is easy to determine whether the label has been reused, greatly enhancing the anti-counterfeiting effect.
[0032] Specifically, when this label is used properly, a robotic arm on the production line peels off the release paper 5 and affixes it to the product in a very short time to prevent the color-changing layer 6 from discoloring. When workers affix the label manually, the process from peeling off the release paper 5 to affixing it to the product is also extremely simple and can be completed before the color-changing layer 6 discolors.
[0033] In this embodiment, when an electronic tag is needed, the release paper 5 is first peeled off from the bottom of the adhesive layer 4. At this time, the acrylic pressure-sensitive adhesive layer in the adhesive layer 4, under the strong action of the adhesive border 41, can firmly stick the tag to the surface of the product. The mesh-like porous structure of the breathable layer 42 ensures the stability of the adhesion while also providing a channel for the subsequent color-changing layer 6 to contact with the air. During normal use, the transparent PET material of the surface layer 1, with its high transparency and wear-resistant properties, does not affect the NFC wireless communication function of the circuit board layer 2 through the NXP chip and FPC antenna, completing operations such as product identification and data transmission, while effectively protecting the internal components from external physical damage and environmental corrosion.
[0034] Once the electronic tag is illegally removed, the fragile strip 31 of the fragile layer 3 will quickly break due to external force, forming obvious and irreparable damage marks, clearly showing that the tag has been opened. Simultaneously, the removal of the tag allows air to enter the adhesive layer 4 through the breathable layer 42, making full contact with the color-changing layer 6. If the color-changing layer 6 is phenolphthalein powder, it will react chemically with carbon dioxide in the air, producing a color change; if it is nitrogen triiodide powder, it will change color due to changes in air humidity. This irreversible color change is clearly and intuitively presented through the gap between the surface layer 1 and the fragile strip 31. Whether it is a product manufacturer, seller, or consumer, they can quickly and accurately determine whether the electronic tag has been reused, and thus determine whether the product is counterfeited or repackaged, achieving a highly efficient and reliable anti-counterfeiting function.
[0035] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. An anti-counterfeit electronic tag, characterized by, include: The layers arranged from top to bottom are: surface layer (1), circuit board layer (2), fragile layer (3), and adhesive layer (4); The bottom of the adhesive layer (4) is provided with release paper (5), and the interior of the adhesive layer (4) is provided with a color-changing layer (6).
2. The anti-fake electronic tag according to claim 1, characterized in that, The color-changing layer (6) is composed of phenolphthalein powder or nitrogen triiodide powder. The phenolphthalein powder reacts with carbon dioxide to change color after contact with air, and the nitrogen triiodide powder changes color due to humidity changes after contact with air.
3. The anti-forgery electronic tag according to claim 2, characterized in that, The adhesive layer (4) includes an adhesive border (41) and a breathable layer (42), wherein the breathable layer (42) has a mesh porous structure.
4. The anti-forgery electronic tag according to claim 3, characterized in that, The surface layer (1) is made of transparent PET material, the circuit board layer (2) integrates the basic circuit elements of the electronic tag, and the adhesive layer (4) is an acrylic pressure-sensitive adhesive layer.
5. The anti-counterfeit electronic tag according to claim 4, characterized in that, The release paper (5) is silicone paper or glassine paper.
6. An anti-counterfeit electronic tag according to claim 5, wherein, The surface layer (1) is bonded to the circuit board layer (2), the circuit board layer (2) is bonded to the fragile layer (3), and the fragile layer (3) is bonded to the adhesive layer (4) with EVA glue.
7. An anti-counterfeit electronic tag according to claim 6, wherein The fragile layer (3) includes multiple sets of fragile strips (31), which are distributed in an equidistant array. The fragile strips (31) are made of fragile paper material and break when subjected to external force tearing.
8. The anti-counterfeit electronic tag according to claim 7, characterized in that, An NXP chip and an FPC antenna are soldered onto the circuit board layer (2) to enable the NFC wireless communication function of the electronic tag.