Thinning type flexible RFID tag

Abstract

The utility model relates to a thinned flexible RFID (Radio Frequency Identification) tag. Relates to the technical field of RFID tags. Comprising a plane material, an RFID transponder and a substrate which are arranged in sequence, and the RFID transponder is connected with the plane material and the substrate through adhesive layers; the RFID transponder is a thinned RFID transponder, the thinned RFID transponder comprises an RFID tag antenna, conductive adhesive, an RFID chip and a carrier layer, the RFID chip is connected with the RFID tag antenna through the conductive adhesive, the RFID tag antenna comprises a metal layer, the thickness of the metal layer is 5-12 microns, and the carrier layer is connected to the bottom of the metal layer; the surface material and the substrate are both cloth base layers. According to the utility model, the RFID tag carrier is thinned, and the flexibility of the tag is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of RFID tags, in particular to a thinned flexible RFID tag. Background Art

[0002] In the clothing manufacturing industry, due to the ever-changing fashion trends, manufacturers need to speed up production to adapt to short-cycle demands. RFID tags have many advantages, such as small size, large capacity, long life, reusability, fast reading and writing, etc. The unique ID code of each tag guarantees uniqueness worldwide. By using RFID tags on each piece of clothing, manufacturers can achieve full-process identification and real-time tracking from factory to retail store. According to data, the application of RFID technology can reduce out-of-stock phenomena by 20% to 30%, and increase the accuracy of inventory counting from 80% to 98%, thereby increasing sales, reducing inventory, reducing management costs, and speeding up the circulation of goods in the supply chain.

[0003] In recent years, the RFID tag market has been growing continuously. According to the research data in the "2023 China RFID Passive Internet of Things Industry White Paper", RFID technology has been widely used in the clothing field and has become the most mature and largest application field of RFID technology.

[0004] The application of RFID tags in the field of clothing is mostly to embed RFID tags directly into existing tags such as hangtags, side labels, and laundry labels, so as to add radio frequency functions to the existing functions; among them, side labels and laundry labels are mostly in direct or indirect contact with the wearer. In the case of no RFID tags embedded, the problem of side labels and laundry labels piercing the skin always exists. If RFID is simply embedded into side labels and laundry labels, it will undoubtedly increase the stiffness and thickness of the original labels, making the wearer's experience worse, and the problem of piercing will increase instead of being solved, which greatly affects the wearer's comfort. Utility Model Content

[0005] In view of the above problems, the utility model provides a thin flexible RFID tag which is simple in structure, convenient and reliable.

[0006] The technical solution of the utility model is: a thinned flexible RFID tag, comprising a surface material, an RFID transponder and a base material arranged in sequence, wherein the RFID transponder is connected to the surface material and the base material respectively through an adhesive layer;

[0007] The RFID transponder is a thinned RFID transponder,

[0008] The thinned RFID transponder comprises an RFID tag antenna, a conductive adhesive, an RFID chip and a carrier layer.

[0009] The RFID chip is connected to the RFID tag antenna via conductive glue.

[0010] The RFID tag antenna includes a metal layer, the thickness of the metal layer is 5-12 um, and the carrier layer is connected to the bottom of the metal layer;

[0011] The surface material and the bottom material are both cloth-based.

[0012] The thickness of the carrier layer is 5-25 um.

[0013] The carrier layer is a film layer material, specifically PET, PVC, PI or BOPP.

[0014] Also included is a protective layer, the protective layer being connected to the top of the thinned RFID transponder,

[0015] The protective layer is bonded to the chip and the metal layer through an adhesive layer.

[0016] The protective layer is a film material, specifically PET, PVC, PI or BOPP;

[0017] The thickness of the protective layer is 5-25 um.

[0018] The length of the protective layer is ≤ the length of the carrier layer.

[0019] The length of the carrier layer is greater than the length of the metal layer.

[0020] The length of the thinned RFID transponder is shorter than the length of the surface material and the bottom material.

[0021] The material of the fabric base layer is silk ribbon, nylon, cotton ribbon or non-woven fabric.

[0022] The adhesive layer is hot melt adhesive, water adhesive, UV adhesive or oil adhesive.

[0023] In operation, the utility model uses a thinned RFID transponder as the middle layer of the clothing tag, and the upper and lower composite cloth base materials form a thinned flexible RFID tag. The thinned RFID transponder is supported by a film carrier, and from top to bottom, it can be an RFID tag chip, conductive glue, metal layer, and film layer. The metal layer and the RFID tag chip are combined in the form of conductive glue, and there is a film carrier under the metal layer.

[0024] The utility model realizes the thinning of the RFID tag carrier and greatly increases the softness of the tag. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In the drawings, each part is not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] Figure 2 This is a schematic diagram of the structure of a thinned RFID transponder. Figure 1 ,

[0028] Figure 3 This is a schematic diagram of the structure of a thinned RFID transponder. Figure 2 ,

[0029] Figure 4 This is a schematic diagram of the structure of a thinned RFID transponder. Figure 3 ;

[0030] In the figure, 1 is the surface material, 2 is the adhesive layer,

[0031] 3 is an RFID transponder, 31 is an RFID tag antenna, 32 is a conductive adhesive, 33 is an RFID chip, 34 is a carrier layer, 35 is a protective layer,

[0032] 4 is the base material. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-2 As shown, a thinned flexible RFID tag comprises a surface material 1, an RFID transponder 3 and a base material 4 arranged in sequence, wherein the RFID transponder is connected to the surface material and the base material respectively through an adhesive layer 2;

[0037] The RFID transponder 3 is a thinned RFID transponder.

[0038] The thinned RFID transponder includes an RFID tag antenna 31, a conductive adhesive 32, an RFID chip 33 and a carrier layer 34.

[0039] The RFID chip 33 is connected to the RFID tag antenna 31 through a conductive adhesive 32.

[0040] The RFID tag antenna 31 includes a metal layer, the thickness of the metal layer is 5-12 um, and the carrier layer 34 is connected to the bottom of the metal layer;

[0041] The surface material 1 and the bottom material 4 are both cloth-based.

[0042] In operation, the utility model uses a cloth-based material as the surface material, and the thinned RFID transponder is supported by a film-type carrier. From top to bottom, there may be an RFID tag chip, a conductive adhesive, a metal layer, and a film layer. The metal layer may be a pure conductor material such as aluminum and copper, or a mixed metal material such as graphene, nanosilver, and conductive paste. The metal layer has different linear appearances to achieve the best performance in different application scenarios. The metal layer and the RFID tag chip are combined in the form of conductive adhesive. There is a film-type carrier under the metal layer, and there is adhesive under the film-type carrier, which is compounded with the base material to form a whole label. The base material and the surface material are both cloth-based materials.

[0043] The utility model reduces the thickness of the RFID transponder, which is prone to breakage, reduced strength and deformation. On the premise of ensuring flexibility, the processing quality and reliability are guaranteed by setting the carrier layer.

[0044] The thickness of the carrier layer 34 is 5-25 um.

[0045] The carrier layer 34 is a film material, specifically PET, PVC or BOPP.

[0046] It also includes a protective layer 35, which is connected to the top of the thinned RFID transponder.

[0047] The protective layer 35 is bonded to the chip and the metal layer through an adhesive layer. The protective layer is provided to protect the chip.

[0048] The protective layer 35 is a film material, specifically PET, PVC or BOPP;

[0049] The thickness of the protective layer 35 is 5-25 um.

[0050] like Figure 3-4 As shown, the length of the protective layer 35 is ≤ the length of the carrier layer 34 (equal or unequal lengths), which is set according to actual processing requirements.

[0051] The length of the carrier layer is greater than the length of the metal layer, thereby ensuring processing reliability.

[0052] The length of the thinned RFID transponder is shorter than that of the surface material 1 and the bottom material 4, thereby improving the flexibility of the outer edge.

[0053] The material of the cloth base layer is silk ribbon, nylon, cotton ribbon or non-woven fabric, which can be selected according to processing requirements.

[0054] The adhesive layer 2 is hot melt adhesive, water adhesive, UV adhesive or oil adhesive, which can be selected according to processing requirements.

[0055] The utility model provides a thinned flexible RFID tag, which realizes the thinning of the RFID tag carrier, greatly increases the softness of the tag, and improves the problem of poor wearing feeling caused by simply and roughly embedding the RFID tag directly into the clothing tag.

[0056] (1) The thinned flexible RFID tag can reduce the carrier layer thickness by 1 / 2 or more compared to the traditional structure RFID tag.

[0057] (2) In this thinned flexible RFID tag, the length of the RFID transponder is smaller than the length of the bottom and surface materials, making the outer edge softer.

[0058] (3) The thinned flexible RFID tag is soft enough. In addition to being attached to traditional objects, it can also be well applied to curved surface objects and the integration of skin-friendly product applications.

[0059] The antenna design example described above only expresses one implementation method of the utility model and cannot be understood as limiting the scope of this patent. For ordinary technicians in this field, several modifications and improvements can be made without departing from the design thinking of this structure, which all belong to the protection scope of this patent. The protection scope of this patent shall be based on the attached claims.

Claims

1. A thinned flexible RFID tag, comprising a surface material, an RFID transponder and a base material arranged in sequence, wherein the RFID transponder is connected to the surface material and the base material respectively through an adhesive layer; It is characterized in that The RFID transponder is a thinned RFID transponder, The thinned RFID transponder comprises an RFID tag antenna, a conductive adhesive, an RFID chip and a carrier layer. The RFID chip is connected to the RFID tag antenna via conductive glue. The RFID tag antenna includes a metal layer, the thickness of the metal layer is 5-12 um, and the carrier layer is connected to the bottom of the metal layer; The surface material and the bottom material are both cloth-based.

2. A thinned flexible RFID tag according to claim 1, characterized in that: The thickness of the carrier layer is 5-25 um.

3. A thinned flexible RFID tag according to claim 1 or 2, characterized in that: The carrier layer is a film layer material, specifically PET, PVC, PI or BOPP.

4. The thinned flexible RFID tag according to claim 3, characterized in that: Also included is a protective layer, the protective layer being connected to the top of the thinned RFID transponder, The protective layer is bonded to the chip and the metal layer through an adhesive layer.

5. The thinned flexible RFID tag according to claim 4, characterized in that: The protective layer is a film material, specifically PET, PVC, PI or BOPP; The thickness of the protective layer is 5-25 um.

6. The thinned flexible RFID tag according to claim 4, characterized in that: The length of the protective layer is ≤ the length of the carrier layer.

7. The thinned flexible RFID tag according to claim 1, characterized in that: The length of the carrier layer is greater than the length of the metal layer.

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