A recyclable radio frequency resonant cavity assembly and its manufacturing process and application

Abstract

The present invention discloses a recyclable radio frequency resonant cavity assembly and its manufacturing process and application in the field of radio frequency tag technology. The radio frequency resonant cavity assembly includes a bottom PET film provided with magnetic ink printing mark points, a resonant cavity aluminum foil layer provided with a resonant cavity, and a top PET film; its manufacturing process includes designing and installing a resonant cavity aluminum foil layer substrate, printing magnetic ink printing mark points, installing a radio frequency chip, fixing the top PET film, performance testing, punching, stacking and other processes; a label using the recyclable radio frequency resonant cavity assembly includes a label face paper, a recyclable radio frequency resonant cavity assembly, a radio frequency antenna wing aluminum foil layer, and a release base paper. The radio frequency resonant cavity assembly of the present invention is small in size and does not affect normal printing. The radio frequency resonant cavity assembly has read and write functions, improves read and write sensitivity, is conducive to the application and promotion of radio frequency tags and radio frequency packaging, reduces the application cost of radio frequency tags by nearly 30%, and is conducive to the application and promotion of radio frequency identification technology.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency tags, and in particular to a recyclable radio frequency resonant cavity assembly and a manufacturing process and application thereof. Background Art

[0002] With the rapid development of express logistics industry, its annual circulation volume reaches tens of billions of pieces. The traditional manual barcode entry, barcode recognition and sorting are labor-intensive and have high error rates. As a result, radio frequency chip tags and radio frequency identification came into being, which greatly increased the cost of logistics and hindered the improvement of logistics identification technology.

[0003] However, the traditional manufacturing and logistics industries are increasingly using radio frequency chip tags, which results in an increasing consumption of resources. At the same time, it increases the consumption of personnel, reduces production efficiency, and is not conducive to the reuse of resources.

[0004] The above defects are worth solving. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a recyclable radio frequency resonant cavity assembly and a manufacturing process and application thereof.

[0006] The technical solution of the present invention is as follows:

[0007] In one aspect, a recyclable radio frequency resonant cavity assembly is characterized by comprising:

[0008] The bottom PET film has a magnetic ink printed mark point at one end;

[0009] A resonant cavity aluminum foil layer, the resonant cavity aluminum foil layer is arranged above the bottom PET film, a resonant cavity is arranged in the middle of the resonant cavity aluminum foil layer, a radio frequency chip position is arranged at the side thereof, and a radio frequency chip is fixed on the radio frequency chip position;

[0010] A top PET film, the top PET film has the same size as the bottom PET film, and the top PET film is fixedly connected to the bottom PET film, so that the resonant cavity aluminum foil layer is fixed between the bottom PET film and the top PET film.

[0011] The present invention according to the above scheme is characterized in that the bottom PET film and the top PET film are both pentagonal.

[0012] Furthermore, the pentagon includes a rectangle and a triangle, the rectangle and the triangle are integrally formed, and the magnetic ink printing mark is located at the vertex of the triangle away from the rectangle.

[0013] The present invention according to the above scheme is characterized in that an antenna wing coupling position is provided on the outer side of the resonant cavity, and the antenna wing coupling position and the radio frequency chip position are located on opposite sides of the resonant cavity.

[0014] Furthermore, the width of the antenna wing coupling position is 3-4 mm.

[0015] The present invention according to the above scheme is characterized in that the bottom PET film and the resonant cavity aluminum foil layer are integrally formed.

[0016] Furthermore, the PET aluminum foil composite film is chemically etched to form the resonant cavity aluminum foil layer.

[0017] The present invention according to the above scheme is characterized in that the bottom PET film and the resonant cavity aluminum foil layer are fixedly connected by glue.

[0018] The present invention according to the above scheme is characterized in that the top PET film and the bottom PET film are fixedly connected by composite glue.

[0019] The present invention according to the above scheme is characterized in that the radio frequency chip is 5-8 mm away from the position of the magnetic ink printing mark point.

[0020] On the other hand, a process for manufacturing a recyclable radio frequency resonant cavity assembly is characterized by comprising the following steps:

[0021] (1) Designing the shape of the resonant cavity, and setting an antenna wing coupling position and a radio frequency chip position outside the resonant cavity to form an aluminum foil layer substrate of the resonant cavity;

[0022] (2) Installing the resonant cavity aluminum foil layer substrate on the bottom PET film;

[0023] (3) printing a magnetic ink printing mark point on the center line of the resonant cavity pattern of the bottom PET film;

[0024] (4) installing a radio frequency chip on the radio frequency chip position to form a resonant cavity aluminum foil layer;

[0025] (5) coating a composite glue on the top PET film and covering it on the bottom PET film, the top PET film and the bottom PET film are composited and cured, and the resonant cavity aluminum foil layer is fixed therein to form a radio frequency resonant cavity tape;

[0026] (6) Testing the radio frequency performance of the aluminum foil layer of the resonant cavity. If it is qualified, proceed to the next step. If it is not qualified, it will be marked as a defective product for removal during product inspection;

[0027] (7) The RF resonant cavity tape enters the punching station, and the punch performs punching to form a single body of the RF resonant cavity assembly;

[0028] (8) The RF resonant cavity assembly is stacked and sent to a label production line.

[0029] The present invention according to the above scheme is characterized in that, in the step (1), the width of the antenna wing coupling position is 3-4 mm.

[0030] The present invention according to the above scheme is characterized in that, in the step (2), the aluminum foil layer substrate of the resonant cavity is formed by chemical etching: the pattern of the resonant cavity is chemically etched on the PET aluminum foil composite film.

[0031] The present invention according to the above scheme is characterized in that, in the step (2), the resonant cavity aluminum foil layer matrix is ​​formed by punching out aluminum foil: glue is applied on the bottom PET film, and a punching die head punches out the aluminum foil of the pattern of the resonant cavity from the aluminum foil to form the resonant cavity aluminum foil layer matrix, and the resonant cavity aluminum foil layer matrix falls on the glue of the bottom PET film and is fixed to the bottom PET film by pressing and drying.

[0032] The present invention according to the above scheme is characterized in that, in the step (3), the magnetic ink printing mark point is 5-8 mm away from the position of the radio frequency chip.

[0033] The present invention according to the above scheme is characterized in that, in the step (7), during the punching process, the shape of the die is a pentagon, which includes a rectangle and a triangle, the rectangle and the triangle are integrally formed, and the tip of the triangle is pressed on the magnetic ink printing mark point; the horizontal and vertical knife lines of the die are 1-2 mm outside the edge of the aluminum foil layer of the resonant cavity.

[0034] On the other hand, a tag using a recyclable radio frequency resonant cavity is characterized by comprising:

[0035] Label paper, the front side of which is provided with printed graphics.

[0036] The above-mentioned recyclable RF resonant cavity assembly is arranged on the back side of the label face paper, and a RF antenna wing aluminum foil layer is arranged on the other side of the recyclable RF resonant cavity assembly, and the RF antenna wing aluminum foil layer is fixedly connected to the back side of the label face paper.

[0037] The inner side of the release paper is compositely connected with the back side of the label paper through a pressure-sensitive adhesive layer.

[0038] The present invention according to the above scheme is characterized in that the coupling position between the RF antenna wing aluminum foil layer and the recyclable RF resonant cavity assembly is 0-1.5 mm apart.

[0039] The present invention according to the above scheme is characterized in that the recyclable radio frequency resonant cavity assembly is bonded to the back side of the label paper by antenna pattern glue.

[0040] Furthermore, the antenna pattern glue is white latex or pressure-sensitive adhesive.

[0041] The present invention according to the above scheme is characterized in that its preparation process comprises the following steps:

[0042] (1) Printing images and texts on the front side of the label paper;

[0043] (2) After the label paper passes through the paper turning device, the back side of the label paper faces upward, and antenna pattern glue is applied on the back side of the label paper;

[0044] (3) Installing the recyclable radio frequency resonant cavity assembly in the middle of the antenna pattern glue;

[0045] (4) punching out the RF antenna wing aluminum foil layer on the aluminum foil layer, and installing the RF antenna wing aluminum foil layer at the antenna pattern glue;

[0046] (5) Laminating the release backing paper coated with the pressure-sensitive adhesive layer with the back side of the label face paper to form a radio frequency self-adhesive paper;

[0047] (6) Performing a radio frequency performance test on the radio frequency self-adhesive paper, and if it meets the standard, proceeding to the next step; if it does not meet the standard, marking the defective product;

[0048] (7) Die-cutting, waste removal and slitting of labels;

[0049] (8) Rewinding to obtain the finished product of RFID label roll.

[0050] The present invention according to the above scheme is characterized in that its recovery process comprises the following steps:

[0051] (1) peeling off the recyclable RF resonant cavity assembly from the RF label paper to separate it from the RF label paper;

[0052] (2) placing the peeled-off recyclable RF resonant cavity assembly into a pressure-sensitive adhesive cleaning tank to wash away the pressure-sensitive adhesive on the surface of the recyclable RF resonant cavity assembly;

[0053] (3) The cleaned recyclable RF resonant cavity assembly enters a drying channel for drying;

[0054] (4) The recyclable RF resonant cavity assemblies after drying enter the vibration sorting plate and line up to move forward;

[0055] (5) The electromagnet attracts the magnetic ink printed mark point in the recyclable RF resonant cavity assembly, and the recyclable RF resonant cavity assembly falls through the unloading baffle during the forward movement, and the sharp corners are aligned in a row and move forward;

[0056] (6) Performing a radio frequency performance test on the recyclable radio frequency resonant cavity assembly, if qualified, proceeding to the next step, if unqualified, marking it as a defective product, and removing the defective products during quality inspection;

[0057] (7) After the detection, the recyclable RF resonant cavity assembly moving forward falls into the vertical channel, is stacked together, is automatically packed and leaves the vertical channel, and the recycling process of the recyclable RF resonant cavity assembly is completed.

[0058] In step (3), the pressure-sensitive adhesive cleaning tank includes a primary cleaning tank, a secondary cleaning tank and a clean water tank.

[0059] The present invention according to the above scheme has the following beneficial effects: the recyclable RF resonant cavity assembly in the present invention is small in size and does not affect normal printing. The RF resonant cavity assembly has read and write functions and is very convenient to couple with large-area aluminum foil antenna wings, greatly improving the read and write sensitivity. Ordinary printing equipment can make RF packaging, which is conducive to the application and promotion of RF tags and RF packaging. The present invention can realize the recycling of the RF resonant cavity assembly, reduce the application cost of RF tags by nearly 30%, and is conducive to the application and promotion of RF identification technology, realizing automation, informatization, and intelligent development. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the structure of the recyclable radio frequency resonant cavity assembly of the present invention.

[0061] Figure 2 It is a top view of the present invention.

[0062] Figure 3 for Figure 2 Sectional view along AA direction.

[0063] Figure 4 Flow chart for preparing a recyclable radio frequency resonant cavity assembly for the present invention.

[0064] Figure 5 It is a schematic diagram of the structure of the recyclable label in the present invention.

[0065] Figure 6 for Figure 5 Cross-sectional view along the BB axis.

[0066] Figure 7The present invention is a flow chart for preparing a recyclable label using a recyclable radio frequency resonant cavity.

[0067] Figure 8 The figure is a recycling flow chart of a tag using a recyclable radio frequency resonant cavity in the present invention.

[0068] In the figure, 10, bottom PET film; 11, magnetic ink printing mark point; 20, resonant cavity aluminum foil layer; 21, antenna wing coupling position; 22, RF chip position; 23, resonant cavity; 24, RF chip; 30, top PET film; 40, label surface paper; 41, RF antenna wing aluminum foil layer; 50, release base paper. DETAILED DESCRIPTION

[0069] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0070] like Figures 1 to 3 As shown, a recyclable radio frequency resonant cavity assembly includes: a bottom PET film 10, a resonant cavity aluminum foil layer 20 and a top PET film 30. The bottom PET film 10 and the top PET film 30 are both 20-30 μm thick, which does not increase the thickness of the entire recyclable radio frequency resonant cavity assembly, and can fully protect the resonant cavity aluminum foil layer 20.

[0071] A magnetic ink printed mark point 11 is provided at one end of the bottom PET film 10 to facilitate the directional arrangement when preparing and recycling the label. The top PET film 30 has the same size as the bottom PET film 10, and the top PET film 30 is fixedly connected to the bottom PET film 10, so that the resonant cavity aluminum foil layer 20 is fixed between the bottom PET film 10 and the top PET film 30. The bottom PET film 10 and the top PET film 30 in the present invention are both pentagonal. The pentagon includes a rectangle and a triangle, and the rectangle and the triangle are integrally formed, and the magnetic ink printed mark position 11 is located at the vertex of the triangle away from the rectangle.

[0072] In one embodiment, the bottom PET film 10 and the resonant cavity aluminum foil layer 20 are integrally formed (ie, the resonant cavity aluminum foil layer 20 is formed by chemical etching of the PET aluminum foil composite film).

[0073] In one embodiment, the bottom PET film 10 and the resonant cavity aluminum foil 20 are fixedly connected by glue.

[0074] The resonant cavity aluminum foil layer 20 is arranged above the bottom PET film 10, a resonant cavity 23 is arranged in the middle of the resonant cavity aluminum foil layer 20, a radio frequency chip position 22 is arranged at the side thereof, and a radio frequency chip 24 is fixed on the radio frequency chip position 22. Preferably, the radio frequency chip 24 is 5-8 mm away from the position of the magnetic ink printing mark point 11.

[0075] An antenna wing coupling position 21 is provided outside the resonant cavity 23, and the antenna wing coupling position 21 and the radio frequency chip position 22 are located on opposite sides of the resonant cavity 23. Preferably, the width of the antenna wing coupling position 21 is 3-4 mm.

[0076] The top PET film 30 is fixedly connected to the bottom PET film 10 by composite glue. In the present invention, the glue of the bottom PET film 10 and the top PET film 30 has the functions of waterproofing, acid and alkali resistance, which is conducive to the recycling of the recyclable radio frequency resonant cavity assembly.

[0077] In addition, the size of the recyclable RF resonant cavity assembly is less than 18×16mm and the thickness is less than 100µmm, which does not affect normal printing after being made into an RF tag.

[0078] like Figure 4 As shown, the manufacturing process of the recyclable radio frequency resonant cavity assembly includes the following steps:

[0079] 1. Design the shape of the resonant cavity, and set the antenna wing coupling position and the RF chip position on the outside of the resonant cavity to form the aluminum foil layer substrate of the resonant cavity.

[0080] Generally, the outer dimensions of the resonant cavity are less than 16×18 mm, and the width of the antenna wing coupling position is 3-4 mm, so that the alignment allowable error between the recyclable RF resonant cavity assembly and the RF antenna wing aluminum foil layer is +1.5 mm, thus having extremely high recognition sensitivity.

[0081] 2. Install the resonant cavity aluminum foil layer substrate on the bottom PET film.

[0082] It includes two methods:

[0083] (1) Traditional chemical etching method: On the PET aluminum foil composite film, the pattern of the resonant cavity is chemically etched.

[0084] (2) Punching aluminum foil method: Glue is applied on the bottom PET film, and the punching die head punches out the aluminum foil with the pattern of the resonant cavity from the aluminum foil to form the resonant cavity aluminum foil layer matrix. The resonant cavity aluminum foil layer matrix falls on the glue of the bottom PET film and is fixed on the bottom PET film after lamination and drying.

[0085] 3. Print magnetic ink marking points on the center line of the resonant cavity pattern of the bottom PET film.

[0086] The magnetic ink contains a large amount of iron powder, which has a good adsorption force with the magnet. Preferably, the magnetic ink printing mark point is 5-8mm away from the RF chip position, which ensures good adsorption capacity and does not affect the RF performance.

[0087] 4. Install the RF chip on the RF chip position to form a resonant cavity aluminum foil layer.

[0088] The resonant cavity resonates with the RF chip, giving the RF chip the functions of reading and writing.

[0089] 5. Apply composite glue on the top PET film and cover it on the bottom PET film. The top PET film and the bottom PET film are composited and cured, and the resonant cavity aluminum foil layer is fixed therein to form a radio frequency resonant cavity tape.

[0090] 6. Test the radio frequency performance of the aluminum foil layer of the resonant cavity. If it is qualified, proceed to the next step. If it is not qualified, it will be marked as a defective product for removal during product inspection.

[0091] 7. The RF resonant cavity tape enters the punching station, and the punch performs punching to form a single body of the RF resonant cavity assembly.

[0092] During the punching process, the shape of the die is a pentagon, which includes a rectangle and a triangle. The rectangle and the triangle are formed in one piece, and the tip of the triangle is pressed on the magnetic ink printing mark point; the horizontal and vertical knife lines of the die are 1-2 mm outside the edge of the aluminum foil layer of the resonant cavity.

[0093] 8. The RF resonant cavity assembly is stacked, and every 1,000 sheets are stacked together and sent to the label production line.

[0094] like Figure 5 , Figure 6 As shown, a label using a recyclable radio frequency resonant cavity includes: a label face paper 40, Figure 1 The recyclable radio frequency resonant cavity assembly and release liner 50 are shown. Figure 5 The label paper 40 in the figure is in the back side state.

[0095] The front side of the label paper 40 is provided with printed graphics, and the recyclable RF resonant cavity assembly is provided on the back side of the label paper 40. The recyclable RF resonant cavity assembly is bonded to the back side of the label paper 40 by the antenna pattern glue. Preferably, the antenna pattern glue is white latex or pressure-sensitive adhesive, which reduces the raw material cost and the complexity of the production process.

[0096] An RF antenna wing aluminum foil layer 41 is provided on the other side of the recyclable RF resonant cavity assembly. The RF antenna wing aluminum foil layer 41 is fixedly connected to the back side of the label face paper 40. The coupling position of the RF antenna wing aluminum foil layer 41 and the recyclable RF resonant cavity assembly is 0-1.5mm apart.

[0097] The inner side of the release base paper 50 is compositely connected to the back side of the label face paper 40 via a pressure-sensitive adhesive layer.

[0098] like Figure 7 As shown, the preparation process of the tag using the recyclable radio frequency resonant cavity includes the following steps:

[0099] (1) Printing images and text on the front of the label paper;

[0100] (2) After the label paper passes through the paper turner, the back side of the label paper faces upwards, and the antenna pattern glue is applied on the back side of the label paper;

[0101] (3) Install a recyclable RF resonant cavity assembly in the middle of the antenna pattern glue;

[0102] (4) Punching out the RF antenna wing aluminum foil layer on the aluminum foil layer, and installing the RF antenna wing aluminum foil layer at the antenna pattern glue;

[0103] (5) Laminating the release backing paper coated with the pressure-sensitive adhesive layer with the back of the label face paper to form a radio frequency self-adhesive paper;

[0104] (6) Perform radio frequency performance test on radio frequency self-adhesive paper. If it meets the standard, proceed to the next step. If it does not meet the standard, mark the defective product;

[0105] (7) Die-cutting, waste removal and slitting of labels;

[0106] (8) Rewinding to obtain the finished product of RFID label roll.

[0107] like Figure 8 As shown, the recycling process of the tag using the recyclable radio frequency resonant cavity includes the following steps:

[0108] (1) Peel off the recyclable RF resonant cavity assembly from the RF label paper to separate it from the RF label paper;

[0109] (2) putting the peeled recyclable RF resonant cavity assembly into a pressure-sensitive adhesive cleaning tank to wash away the pressure-sensitive adhesive on the surface of the recyclable RF resonant cavity assembly;

[0110] (3) After cleaning, the recyclable RF resonant cavity assembly enters the drying channel for drying, wherein the pressure-sensitive adhesive cleaning tank includes a primary washing tank, a secondary washing tank and a clean water tank;

[0111] (4) After drying, the recyclable RF resonant cavity assembly enters the vibration sorting plate and lines up to move forward;

[0112] (5) The electromagnet attracts the magnetic ink printed mark points in the recyclable RF resonant cavity assembly, and the recyclable RF resonant cavity assembly falls through the unloading baffle during the forward movement, and the sharp corners are aligned in a row and move forward;

[0113] (6) Perform RF performance test on the recyclable RF resonant cavity assembly. If qualified, proceed to the next step. If unqualified, mark it as defective and remove it during quality inspection;

[0114] (7) After detection, the recyclable RF resonant cavity assemblies moving forward fall into the vertical channel and are stacked together. 1,000 sheets are stacked up and automatically packaged and leave the vertical channel, completing the recycling process of the recyclable RF resonant cavity assemblies.

[0115] The invention has a wide range of applications and can be used to manufacture logistics radio frequency tags, commodity radio frequency tags, and radio frequency labels.

[0116] (1) In the application of logistics RFID tags: The recyclable RFID resonant cavity assembly is combined with a large area of ​​aluminum foil antenna wings, which has extremely high RFID reading and writing sensitivity. It can still read and write normally after the RFID field is greatly attenuated in complex scenarios; the recyclable RFID resonant cavity assembly is recycled together with the logistics tag return signature form, so it is convenient to recycle the RFID resonant cavity assembly and can be used multiple times, meeting the cost control needs of the low-profit logistics industry; the application cost is low, which is conducive to promoting the application of RFID technology in the express logistics industry to replace traditional barcode and QR code recognition, and the express logistics industry will enter the stage of automation and intelligence.

[0117] (2) Application of RFID tags and labels in commodities: Recyclable RFID resonant cavity assemblies are used to manufacture RFID tags and labels for various commodities. Recycling bins for RFID tags and labels are set up in shopping malls to encourage consumers to be environmentally conscious and put RFID tags and labels into recycling bins. The high recycling rate of recyclable RFID resonant cavity assemblies can significantly reduce the cost of RFID tags, which is beneficial to the manufacturing, warehousing and commercial industries to promote RFID technology and realize automation, informatization and intelligence.

[0118] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0119] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A tag using a recyclable radio frequency resonant cavity, characterized in that: include: Label paper, the front side of which is provided with printed graphics. A recyclable radio frequency resonant cavity assembly, wherein the recyclable radio frequency resonant cavity assembly is arranged on the back side of the label face paper, and a radio frequency antenna wing aluminum foil layer is arranged on the other side of the recyclable radio frequency resonant cavity assembly, and the radio frequency antenna wing aluminum foil layer is fixedly connected to the back side of the label face paper, A release paper, the inner side of which is compositely connected to the back side of the label paper via a pressure-sensitive adhesive layer; The recycling process includes the following steps: (1) peeling off the recyclable RF resonant cavity assembly from the RF label paper to separate it from the RF label paper; (2) placing the peeled-off recyclable RF resonant cavity assembly into a pressure-sensitive adhesive cleaning tank to wash away the pressure-sensitive adhesive on the surface of the recyclable RF resonant cavity assembly; (3) the cleaned recyclable radio frequency resonant cavity assembly enters a drying channel for drying; (4) The recyclable RF resonant cavity assemblies after drying enter a vibration sorting plate and line up to move forward; (5) The electromagnet attracts the magnetic ink printed mark point in the recyclable RF resonant cavity assembly, and the recyclable RF resonant cavity assembly falls through the unloading baffle during the forward movement, and the sharp corners are aligned in a row and move forward; (6) Performing a radio frequency performance test on the recyclable radio frequency resonant cavity assembly, if qualified, proceeding to the next step, if unqualified, marking a defective product, and removing the defective product during quality inspection; (7) After detection, the recyclable RF resonant cavity assembly moving forward falls into the vertical channel, is stacked together, is automatically packaged and leaves the vertical channel, and the recycling process of the recyclable RF resonant cavity assembly is completed.

2. The label using a recyclable radio frequency resonant cavity according to claim 1, characterized in that: The preparation process comprises the following steps: (1) Printing images and texts on the front side of the label paper; (2) After the label paper passes through the paper turning device, the back side of the label paper faces upward, and antenna pattern glue is applied to the back side of the label paper; (3) installing the recyclable radio frequency resonant cavity assembly in the middle of the antenna pattern glue; (4) punching out the RF antenna wing aluminum foil layer on the aluminum foil layer, and installing the RF antenna wing aluminum foil layer at the antenna pattern glue position; (5) Laminating the release base paper coated with the pressure-sensitive adhesive layer with the back side of the label face paper to form a radio frequency self-adhesive paper; (6) Performing a radio frequency performance test on the radio frequency self-adhesive paper, and if the test is up to standard, proceeding to the next step; if the test is not up to standard, marking the defective product; (7) Die-cutting, waste removal and slitting of labels; (8) Rewinding to form a finished RFID label roll.

3. The tag using a recyclable radio frequency resonant cavity according to claim 1, characterized in that: The recyclable radio frequency resonant cavity assembly comprises: The bottom PET film has a magnetic ink printing mark point at one end thereof; A resonant cavity aluminum foil layer, the resonant cavity aluminum foil layer is arranged above the bottom PET film, a resonant cavity is arranged in the middle of the resonant cavity aluminum foil layer, a radio frequency chip position is arranged at the side thereof, and a radio frequency chip is fixed on the radio frequency chip position; A top PET film, the top PET film has the same size as the bottom PET film, and the top PET film is fixedly connected to the bottom PET film, so that the resonant cavity aluminum foil layer is fixed between the bottom PET film and the top PET film.

4. The tag using a recyclable radio frequency resonant cavity according to claim 3, characterized in that: The bottom PET film and the top PET film are both pentagonal.

5. The tag using a recyclable radio frequency resonant cavity according to claim 4, characterized in that: The pentagon includes a rectangle and a triangle, wherein the rectangle and the triangle are integrally formed, and the magnetic ink printing mark point is located at the vertex of the triangle away from the rectangle.

6. The tag using a recyclable radio frequency resonant cavity according to claim 3, characterized in that: The bottom PET film and the resonant cavity aluminum foil layer are integrally formed.

7. The tag using a recyclable radio frequency resonant cavity according to claim 3, characterized in that: The bottom PET film and the resonant cavity aluminum foil layer are fixedly connected by glue.

8. The tag using a recyclable radio frequency resonant cavity according to claim 1, characterized in that: The manufacturing process of the recyclable radio frequency resonant cavity assembly comprises the following steps: (1) Designing the shape of the resonant cavity, and setting an antenna wing coupling position and a radio frequency chip position on the outside of the resonant cavity to form an aluminum foil layer substrate of the resonant cavity; (2) installing the resonant cavity aluminum foil layer substrate on the bottom PET film; (3) printing a magnetic ink printing mark point on the center line of the resonant cavity pattern of the bottom PET film; (4) installing a radio frequency chip on the radio frequency chip position to form a resonant cavity aluminum foil layer; (5) coating a composite glue on the top PET film and covering it on the bottom PET film, the top PET film and the bottom PET film are composited and cured, and the resonant cavity aluminum foil layer is fixed therein to form a radio frequency resonant cavity tape; (6) Testing the radio frequency performance of the aluminum foil layer of the resonant cavity. If it is qualified, proceed to the next step. If it is not qualified, it will be marked as a defective product for removal during product inspection; (7) The RF resonant cavity tape enters a punching station, and a punch performs punching to form a single body of the RF resonant cavity assembly; (8) The RF resonant cavity assembly is stacked and sent to a label production line.

9. The tag using a recyclable radio frequency resonant cavity according to claim 8, characterized in that: In step (7), during the punching process, the shape of the die is a pentagon, which includes a rectangle and a triangle, the rectangle and the triangle are integrally formed, and the tip of the triangle is pressed on the magnetic ink printing mark point; the horizontal and vertical knife lines of the die are 1-2 mm outside the edge of the aluminum foil layer of the resonance cavity.

Images