CN218768205U - NFC tag - Google Patents

Abstract

The utility model discloses a NFC label, which comprises a NFC label body, and a back glue layer and a release film layer which are sequentially formed on the surface of the NFC label body; the NFC label body comprises a label circuit and a substrate layer, and the label circuit is formed between the substrate layer and the back adhesive layer; the label circuit comprises a coil layer, an insulating layer, an easy-to-peel layer and a jumper which are sequentially formed between the base material layer and the back glue layer; and windows for exposing the head end and the tail end of the coil layer are formed on the easy-to-peel layer and the insulating layer, and the jumper wires are respectively connected with the two ends of the coil layer through the windows. The utility model discloses a set up easily peeling layer in tag circuit, make coil layer and wire jumper separation when tearing off the NFC label, tag circuit is destroyed, makes the unable secondary use of this NFC label, has improved the security.

Description

NFC tag

Technical Field

The utility model relates to an electronic tags field, in particular to NFC label that can prevent falsification.

Background

Near field communication (NFC for short) is an emerging technology, devices (such as mobile phones) using the NFC technology can exchange data when approaching each other, are integrated and evolved from a non-contact Radio Frequency Identification (RFID) and an interconnection and interworking technology, and realize applications such as mobile payment, electronic ticketing, door control, mobile identity recognition, anti-counterfeiting and the like by integrating functions of an induction card reader, an induction card and point-to-point communication on a single chip and using a mobile terminal.

The electronic tag is used as a data carrier, and can achieve the functions of identification, information acquisition and anti-counterfeiting tracing. The NFC electronic tag has the advantages of fast response, small size, low pollution, high safety, large information storage capacity and the like, and is widely applied to various industries. However, in order to achieve the purpose of counterfeiting, some merchants often take off the NFC electronic tags on the product packages, reuse the NFC electronic tags and paste the NFC electronic tags on counterfeit and shoddy products, so that the purpose of falsifying with false is achieved, and the market order is greatly disturbed. Therefore, there is a need in the art for an NFC tag that can prevent being transferred and reused.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a NFC label, it can realize anti-fake tracing back the function while can also avoid the NFC label to be carried out the reutilization on being transferred to other article.

In order to achieve the purpose, the utility model provides an NFC label, including NFC label body and gum layer and release film layer that form on NFC label body surface in proper order, NFC label body includes label circuit and substrate layer, label circuit forms between substrate layer and gum layer, label circuit includes coil layer, insulating layer, easy-to-peel layer and wire jumper that form between substrate layer and gum layer in proper order; and windows for exposing the head end and the tail end of the coil layer are formed on the easy-to-peel layer and the insulating layer, and the jumper is respectively connected with the two ends of the coil through the windows.

In one or more embodiments, the easy-release layer is made of silicone oil or a non-silicone release agent material.

In one or more embodiments, the coil layer is in surface contact with the jumper.

In one or more embodiments, the coil layer is a gap-wound spiral antenna and is formed with a leading portion and a trailing portion, and both ends of the jumper line are connected to the leading portion and the trailing portion.

In one or more embodiments, the leading portion and the trailing portion have a circular shape, and the two ends of the jumper wire are cooperatively formed with a circular contact portion.

In one or more embodiments, the two ends of the insulating layer abut against the head part and the tail part, and the two ends of the insulating layer are matched to form a semicircular window.

In one or more embodiments, the easy-peeling layer and the insulating layer are identical in shape and are completely overlapped.

In one or more embodiments, an NFC chip is connected within the helical antenna.

In one or more embodiments, the conductive material of the helical antenna and the jumper is one or more of gold, silver, copper, aluminum, nickel, and tin.

In one or more embodiments, the substrate layer is coated paper, breakable paper, or white cardboard.

Compared with the prior art, according to the utility model provides a NFC label through set up the easy peeling layer between tag circuit's insulating layer and wire jumper layer, when tearing take off anti-fake anti-transfer NFC label, the wire jumper on the easy peeling layer drops, makes tag circuit destroyed with the separation of NFC label body for NFC label can not by used repeatedly, thereby can realize NFC label's anti-fake, prevents the transfer function.

Drawings

Fig. 1 is a schematic diagram of an NFC tag according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a coil layer according to an embodiment of the present invention.

Description of the main reference numerals:

100-NFC label, 10-label body, 11-label circuit, 111-coil layer, 1111-head, 1112-tail, 1113-NFC chip, 112-insulating layer, 113-easy stripping layer, 114-jumper, 12-substrate layer, 20-gum layer and 30-release film layer.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, according to the present invention, an NFC tag 100 includes a tag body 10, and a back adhesive layer 20 and a release film layer 30 sequentially formed on the NFC tag body 10, and the three are attached together by a film covering manner. The back adhesive layer 20 is a double-sided adhesive film, so that the NFC tag 100 can be conveniently attached to a product or a product packaging surface; the release film layer 30 is preferably made of release paper, and is bonded to the front surface of the back adhesive layer 20 to protect the back adhesive layer 20 before use.

The NFC tag body 10 includes a tag circuit 11 and a base material layer 12, and the tag circuit 11 is formed between the base material layer 12 and a back adhesive layer 20. The label circuit 11 includes a coil layer 111, an insulating layer 112, an easy-to-peel layer 113, and a jumper 114, which are sequentially printed on the front surface of the base material layer 12 from top to bottom by using an accurate overprinting process. When the NFC tag 100 is torn off, under the action of the adhesive backing layer 20, the jumper 114 is separated from the NFC tag body 10, and the tag circuit 11 is damaged, so that the NFC tag 100 cannot be used for a second time. Meanwhile, the back surface of the substrate layer 12 can be printed with commodity information patterns and the like, and the commodity information also comprises some visual anti-counterfeiting information.

Meanwhile, windows exposing the head and tail ends of the coil layer 111 are formed on the easy-peeling layer 113 and the insulating layer 112, so as to prevent the jumper 114 from touching other wires to cause short circuit, and the jumper 114 is connected with the two ends of the coil layer 111 through the windows respectively and forms a loop.

In order to attach to the insulating layer 112, the easy-peeling layer 113 is prevented from being detached due to shaking or other reasons, and it is necessary to ensure that the jumper wire 114 is smoothly detached from the insulating layer 112 when being illegally peeled and reused, and the easy-peeling layer 113 needs to have a certain adhesive force. Therefore, in the embodiment, the easy-peeling layer 113 is made of silicone oil or non-silicone release agent material, and the adhesion force is controlled to be 5N/25.4mm-20N/25.4mm.

In the present embodiment, the coil layer 111 and the jumper 114 are preferably in surface contact. Compared with a point contact mode, the mode has larger contact area and more stable connection.

Specifically, as shown in fig. 2, the coil layer 111 employs a spiral antenna wound in a circular gap. In order to realize a good receiving effect of the NFC tag on high-frequency signals, the line width of the spiral antenna is set to be 0.2mm, and the line distance is also set to be 0.2mm; the antenna adopts conductive silver paste as a conductive material, is prepared by a screen printing process in a patterning way, and is thermally cured (at 135 ℃ for 20 minutes) after being printed to obtain a conductive coil and form a spiral antenna.

The helical antenna is formed with a head 1111 and a tail 1112 and connected by a jumper wire 114. As shown in fig. 2, the head portion 1111 is located at the middle of the coil layer 111, and the tail portion 1112 is located at the outer periphery of the coil layer 111.

Specifically, the head 1111 and the tail 1112 are circular, and both ends of the jumper 114 are cooperatively arranged to be circular, so as to enlarge a contact area and improve connection stability.

It should be understood that the winding form of the wire in the coil layer 111, the positions of the head portion 1111 and the tail portion 1112 and the shape of the contact end with the jumper 114 are not limited to the case shown in fig. 1, and may be set according to practical situations, and are not limited herein.

Meanwhile, in order to prevent short circuit caused by the jumper 114 contacting other portions of the coil due to displacement, the insulating layer 112 needs to cover the non-contact portion of the jumper 114 and the coil layer 111 as much as possible, and particularly needs to prevent the round end of the jumper 114 from contacting other wires around the head portion 1111 or the tail portion 1112. Thus, as shown in fig. 1, semicircular windows are formed at both ends of the insulating layer 112, and the insulating layer 112 is printed on the coil layer 111 using a screen printing process. The window may surround the circumference of the head 1111 and the tail 1112 during printing to cover other wires around to prevent short circuits.

Preferably, the shape of the easy peeling layer 113 is identical to the shape of the insulating layer 112, so as to avoid the contact between the two ends of the blocking jumper 114 and the head 1111 and the tail 1112, and the two ends are completely overlapped during printing, thereby facilitating the manufacturing.

In other embodiments, the insulating layer 112 and the peeling layer 113 may be provided in other shapes, and may cover the rest of the conductive wires with the contact positions with the head portion 1111 and the tail portion 1112 being exposed, further improving the insulating and isolating effects.

In this embodiment, an NFC chip 1113 is connected in the coil layer 111, preferably, NTAG213 of NXP corporation is adopted, and each NFC chip 1113 has therein a globally unique electronic code EPC (electronic product code) for implementing the anti-counterfeit function of the NFC tag 100.

The wire material of the coil layer 111 and the jumper 114 may be one of gold, silver, copper, aluminum, nickel, and tin, or an alloy of a plurality of different materials to improve conductivity and durability.

It is easily conceivable that the substrate layer 12 may be made of coated paper, fragile paper or white cardboard, or other easily available materials for printing information patterns of commodities, visual anti-counterfeiting information, and the like.

The principle of the NFC tag 100 in this embodiment is briefly described here: before use, the release film layer 30 for protecting the NFC tag 100 is first peeled off, so that the NFC tag 100 is attached to the surface of a product or product package. After a period of time, the adhesiveness of the double-sided adhesive film of the back adhesive layer 20 is sufficiently exerted, so that the NFC tag 100 is sufficiently adhered to the surface of a product. When the NFC tag 100 is torn off, the tag circuit 11 may be destroyed in two ways, one of which is that when the substrate layer 12 is scraped by a nail or other object, the substrate layer 12 is destroyed together with the printed tag circuit 11; the second is that the jumper layer 114 on the easy-peeling layer 113 is stuck off from the label body 10 by the adhesive force of the back adhesive layer 20. Both modes can make tag circuit 11 destroyed, make NFC label 100 become disposable article, effectively prevent the phenomenon of reutilization, avoided fake and fake product to paste the certified products label and falsely pretend the certified products, maintained market order.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. An NFC tag, comprising: the NFC label comprises an NFC label body, and a back adhesive layer and a release film layer which are sequentially formed on the surface of the NFC label body;

the NFC label body comprises a label circuit and a substrate layer, and the label circuit is formed between the substrate layer and the back adhesive layer;

the label circuit comprises a coil layer, an insulating layer, an easy-to-peel layer and a jumper which are sequentially formed between the base material layer and the back glue layer;

and windows for exposing the head end and the tail end of the coil layer are formed on the easy-to-peel layer and the insulating layer, and the jumper wires are respectively connected with the two ends of the coil layer through the windows.

2. The NFC tag of claim 1, wherein the easy-release layer is a silicone oil or a non-silicone release material.

3. The NFC tag of claim 1, wherein the coil layer is in surface contact with a jumper.

4. The NFC tag according to claim 3, wherein the coil layer is a gap-wound spiral antenna and is formed with a head portion and a tail portion, and wherein both ends of the jumper line are connected to the head portion and the tail portion.

5. An NFC tag according to claim 4, wherein the head and tail portions are circular in shape and the jumper wires are fitted at both ends to form circular contacts.

6. The NFC tag of claim 4, wherein the two ends of the insulating layer abut the header and tail portions and the two ends of the insulating layer cooperate to form a semicircular window.

7. The NFC tag of claim 6, wherein the easy-peel layer and insulating layer are identical in shape and are disposed completely overlapping.

8. The NFC tag of claim 4, wherein an NFC chip is connected within the spiral antenna.

9. The NFC tag of claim 4, wherein the conductive material of the spiral antenna and the jumper is one or more of gold, silver, copper, aluminum, nickel, and tin.

10. The NFC tag of claim 1, wherein the substrate layer is coated paper, shredded paper, or white cardboard.

Images