Radio frequency tag with hidden pattern

Abstract

The utility model discloses a radio frequency tag with a hidden pattern, which comprises a tag base and a radio frequency tag circuit board, the hidden pattern is a three-dimensional pattern arranged on the tag base, and the three-dimensional pattern is formed by forming an outward protruding and / or inward concave structure on the tag base. At least the outer surface of the three-dimensional pattern area of the radio frequency tag is provided with a protective layer formed through a secondary injection molding process, and any one of the protective layer and the tag base is made of a transparent material. Therefore, the protective layer is formed through the secondary injection molding process, so that the hand feeling is still smooth when the area where the three-dimensional pattern originally arranged on the label base is located is externally touched, and the anti-counterfeiting effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency tag technology, specifically to a radio frequency tag with a hidden pattern. Background Technology

[0002] RFID (Radio Frequency Identification) tags are a contactless, automatic identification technology that uses radio frequency signals to automatically identify target objects and acquire relevant data. Since RFID cards are frequently used as payment cards, higher requirements are placed on their anti-counterfeiting capabilities.

[0003] Currently, there are anti-counterfeiting marks that can change color according to temperature changes, thus concealing the anti-counterfeiting mark. However, this method has high production costs and complex processing technology. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an RFID tag with a hidden pattern, including a tag base and an RFID tag circuit board. The hidden pattern is a three-dimensional pattern set on the tag base. The three-dimensional pattern is formed by creating an outwardly protruding and / or inwardly recessed structure on the tag base. A protective layer formed by a secondary injection molding process is also provided on the outer surface of the RFID tag, at least in the area of ​​the three-dimensional pattern. Either the protective layer or the tag base is made of transparent material. Therefore, the protective layer formed by the secondary injection molding process in this application ensures that the area where the three-dimensional pattern is originally set on the tag base remains smooth to the touch. In some implementations, the depth or height of the three-dimensional pattern can be only 0.1mm or less to create a three-dimensional feel, but it is difficult to perceive the effect of a three-dimensional pattern with the naked eye. Therefore, since the surface of the RFID tag is smooth and the three-dimensional pattern effect is not visible to the naked eye without careful observation, imitators will ignore the imitation of this pattern or simply print a pattern on the outer surface of the product to simulate a similar effect to the genuine product. However, this is different from the anti-counterfeiting effect created by the built-in three-dimensional pattern of the genuine product, and therefore, it cannot play an anti-counterfeiting role.

[0005] Furthermore, the protective layer is formed on the outer surface of the label base by injection molding, and the RFID tag circuit board is sealed to the label base. Therefore, this application uses a secondary injection molding process to quickly set the protective layer on the outside of the label base, and during the injection process, it defines the positions of the label base and the RFID tag circuit board, which were originally only simply overlapped, and at the same time, seals the RFID tag circuit board, thus achieving a protective effect.

[0006] Furthermore, a receiving groove for accommodating the RFID tag circuit board is provided on the tag base. Therefore, the RFID tag circuit board can be placed in the receiving groove, facilitating subsequent secondary injection molding of the protective layer.

[0007] Furthermore, the depth of the receiving groove is not less than the thickness of the RFID tag circuit board. Therefore, during injection molding, it can be ensured that the injection molding liquid fully fills the gap between the RFID tag circuit board and the receiving groove, forming a good seal and connection between the two.

[0008] Furthermore, the transparent protective layer is formed by injection molding after the positions of the RFID tag circuit board and the tag base are separately fixed in the mold. Therefore, the structure of setting a receiving groove on the tag base is eliminated; the positions of the two are directly fixed before the injection molding liquid for the protective layer is applied. After the injection molding liquid solidifies, the position of the two components is fixed.

[0009] Furthermore, the label base is made of an opaque material, while the protective layer is made of a transparent material. For example, the label base can be made of environmentally friendly straw or other materials with a certain color, thus creating a different texture and color difference from the protective layer. Therefore, the three-dimensional pattern can be seen through the transparent protective layer, but when touching the surface of the RFID tag, there is no uneven feeling, achieving an anti-counterfeiting effect.

[0010] Furthermore, the label base is made of transparent material, while the protective layer is made of opaque material. Therefore, the pattern can be seen from one side of the label base, but the outer surface of the RFID tag still feels smooth to the touch.

[0011] Furthermore, a UV ink layer is also provided on the surface of the three-dimensional pattern. After injection molding, the UV ink layer is embedded under the protective layer and is invisible to the naked eye. The pattern can only be seen when irradiated with a UV lamp, thus achieving an anti-counterfeiting effect.

[0012] Furthermore, at least a portion of the RFID tag circuit board on the side furthest from the tag base is also printed with an anti-counterfeiting pattern of at least one color. During the secondary injection molding of the protective layer, as the injection liquid flows through the pattern area on the circuit board, the coating on the pattern softens to a certain extent under high temperature. Therefore, during the injection molding process, the flow of the protective layer injection liquid will have a certain impact on the pattern, creating an irregular pattern effect, thereby achieving an anti-counterfeiting effect.

[0013] Furthermore, the anti-counterfeiting pattern is selected from at least one of the following: patterns, text, numbers, QR codes, and barcodes. Attached Figure Description

[0014] Figure 1This is a cross-sectional view of one embodiment of the present utility model;

[0015] Figure 2 This is a perspective view of one embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of a three-dimensional pattern formed by a groove structure in Embodiment 1 of this utility model;

[0017] Figure 4 This is a schematic diagram illustrating the formation of a three-dimensional pattern using a flange structure in Embodiment 1 of this utility model.

[0018] Figure 5 This is a schematic diagram showing the location of the scouring pattern area in Embodiment 1 of this utility model.

[0019] In the picture:

[0020] 1. Tag base; 11. Receiving slot; 2. RFID tag circuit board; 21. Washing pattern area; 3. 3D pattern; 31. Flange structure; 32. Groove structure; 4. Protective layer. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] Example 1:

[0023] See appendix Figure 1-4 As shown, this embodiment is an RFID tag with a hidden pattern, which includes a tag base 1, and a receiving groove 11 for accommodating the RFID tag circuit board 2 is provided on the tag base 1; it also includes the RFID tag circuit board 2.

[0024] A three-dimensional pattern 3 is provided on the label base 1 of this RFID tag. The three-dimensional pattern 3 can be a logo pattern or other decorative pattern.

[0025] In some embodiments, the three-dimensional pattern 3 is formed by forming an outwardly projecting flange structure 31 on the label base 1. In other possible embodiments, the three-dimensional pattern 3 can also be formed by forming an inwardly recessed groove structure 32. The height or depth of the flange structure 31 or the groove structure 32 is not limited. However, for better anti-counterfeiting effect, it is usually set to be small, for example, 0.1 mm, or 0.05 mm or less.

[0026] In some embodiments, a protective layer 4, formed by a secondary injection molding process, is also provided on the outer surface of the RFID tag located in the area of ​​the three-dimensional pattern 3. Therefore, the protective layer 4 formed by the secondary injection molding process in this application ensures that the area where the three-dimensional pattern 3 is originally located on the tag base 1 remains smooth to the touch. This is due to the flange structure 31 of the three-dimensional pattern 3 (see attached diagram). Figure 4 (as shown) or trench structure 32 (see appendix) Figure 3 The height or depth dimensions of the RFID tag (as shown) are relatively small, and because the surface of the RFID tag is provided with a protective layer 4, the presence of the three-dimensional pattern 3 is not easily detected on the outer surface of the area where the three-dimensional pattern 3 is located on the RFID tag, thus achieving an anti-counterfeiting effect. Moreover, this application does not significantly increase the processing cost and materials of the RFID tag, and has high practical application value.

[0027] In other possible implementations, the protective layer 4 also covers the area where the RFID tag circuit board 2 is located. If there is a small gap between the RFID tag circuit board 2 and the receiving groove 11, the injection molding liquid of the protective layer 4 can also fill this gap. Thus, the protective layer 4 forms an integral whole between the RFID tag circuit board 2 and the tag base 1.

[0028] In some embodiments, the label base 1 is made of an opaque material, while the protective layer 4 is made of a transparent material. For example, the protective layer 4 can be made of transparent ABS or transparent PC plastic, while the label base 1 is made of materials such as environmentally friendly straw or other colored and opaque plastics or other materials. Therefore, the label base 1 has a different texture and color from the protective layer 4. Thus, the three-dimensional pattern 3 can be seen through the transparent protective layer 4 (this "seeing" is not limited to direct visual observation; for example, to achieve a good anti-counterfeiting effect, the three-dimensional effect of the pattern 3 needs to be set to be inconspicuous, or even invisible to the naked eye, but can be observed with the aid of equipment such as a magnifying glass or microscope). However, when touching the surface of the RFID tag, there is no uneven feeling, thus achieving the anti-counterfeiting effect.

[0029] In other possible implementations, the label base 1 is made of a transparent material. Correspondingly, the protective layer 4 is made of a non-transparent material. Therefore, the anti-counterfeiting effect can be achieved by observing the three-dimensional pattern 3 on one side of the label base 1.

[0030] In some embodiments, the depth of the receiving groove 11 is not less than the thickness of the RFID tag circuit board 2. During the injection molding of the protective layer 4, the RFID tag circuit board 2 can also be sealed to the tag base 1. Therefore, during injection molding, it can be ensured that the injection fluid fully fills the gap between the RFID tag circuit board 2 and the receiving groove 11, resulting in a good seal and connection between the two.

[0031] In some embodiments, a UV ink layer is also provided on the surface of the three-dimensional pattern 3. Therefore, the effect of the anti-counterfeiting pattern embedded in the protective layer 4 can also be observed by irradiation with a UV lamp.

[0032] In some embodiments, at least a portion of the RFID tag circuit board 2 on the side away from the tag base 1 is also printed with an anti-counterfeiting pattern of at least one color. The anti-counterfeiting pattern is selected from at least one of patterns, text, numbers, QR codes, and barcodes. Therefore, during the injection molding process, the flow of the injection liquid in the protective layer 4 will have a certain impact on the anti-counterfeiting pattern, creating a localized irregular pattern effect, thereby achieving the anti-counterfeiting effect. Alternatively, a washout pattern area 21 can be pre-set directly on the RFID tag circuit board 2 (see Appendix). Figure 5 As shown), the etched pattern area 21 can be made of ordinary ink or UV ink. Then, each card is photographed so that each card has a unique pattern. At the same time, when the adhesive for the protective layer 4 is injected, a random etched pattern is formed in the area where the adhesive is injected, thereby achieving an anti-counterfeiting effect.

[0033] In other possible implementations, the area of ​​the RFID tag circuit board 2 may not have a protective layer 4, and the RFID tag circuit board 2 may be directly snapped into or formed into the receiving groove 11 by other means (such as injection molding).

[0034] Example 2:

[0035] The difference between this embodiment and Embodiment 1 is that the receiving groove 11 is no longer provided on the label base 1. The transparent protective layer 4 is formed by injection molding after the positions of the RFID tag circuit board 2 and the label base 1 are fixed separately in the mold. Thus, the protective layer 4 can completely cover the RFID tag circuit board 2 and cover the label base 1, making the RFID tag a whole structure. This structural form makes the processing of the label base 1 easier.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A radio frequency tag with a hidden pattern, comprising a tag base and a radio frequency tag circuit board, characterized in that: The hidden pattern is a three-dimensional pattern set on the label base, and the three-dimensional pattern is formed by forming an outwardly protruding and / or inwardly recessed structure on the label base. A protective layer, formed by a secondary injection molding process, is also provided on the outer surface of the RFID tag, at least in the area of ​​the three-dimensional pattern. Either the protective layer or the tag base is made of a transparent material. At least a portion of the RFID tag circuit board on the side away from the tag base is also printed with an anti-counterfeiting pattern of at least one color.

2. The RFID tag with hidden pattern according to claim 1, characterized in that: The protective layer is a transparent protective layer, which is formed on the outer surface of the label base by injection molding, and seals the radio frequency tag circuit board on the label base.

3. The radio frequency tag with hidden pattern according to claim 2, characterized in that: The tag base is provided with a receiving slot for accommodating the radio frequency tag circuit board.

4. The radio frequency tag with a hidden pattern according to claim 3, characterized in that: The depth of the receiving groove is not less than the thickness of the RFID tag circuit board.

5. The radio frequency tag with hidden pattern according to claim 2, wherein: The transparent protective layer is formed by injection molding after the positions of the RFID tag circuit board and the tag base are respectively fixed in a mold.

6. The radio frequency tag with a hidden pattern according to claim 1, wherein: The label base is made of opaque material, while the protective layer is made of transparent material.

7. The radio frequency tag with a hidden pattern according to claim 1, wherein: The label base is made of transparent material, while the protective layer is made of opaque material.

8. The radio frequency tag with a hidden pattern according to any one of claims 1 to 7, characterized in that: A UV ink layer is also provided on the surface of the three-dimensional pattern.

9. The radio frequency tag with a hidden pattern according to claim 8, wherein: The anti-counterfeiting pattern is selected from at least one of the following: patterns, text, numbers, QR codes, and barcodes.

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