CN212323216U

CN212323216U - Paper substrate radio frequency antenna

Info

Publication number: CN212323216U
Application number: CN202021556401.2U
Authority: CN
Inventors: 巩龙贤; 巩坤; 刘扬; 刘希; 巩忠鑫
Original assignee: Shandong Taibao Information Technology Group Co Ltd
Current assignee: Shandong Taibao Information Technology Group Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-01-08
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to a paper substrate radio frequency antenna belongs to wireless radio frequency identification technical field. Including paper substrate layer (2), paper substrate layer (2) both sides all are equipped with the trickle rete, and paper substrate layer (2) and trickle rete edge terminal surface are equipped with waterproof layer (17), and wherein one side is drenched and is gone up through compound glue film composite UHF antenna (12) on the rete. The utility model discloses reduce antenna manufacturing cost, reduced the pollution of electronic tags product to the environment.

Description

Paper substrate radio frequency antenna

Technical Field

The utility model relates to a paper substrate radio frequency antenna belongs to wireless radio frequency identification technical field.

Background

RFID radio frequency identification technology: the full English name of the RFID is Radio Frequency Identification RFID, which is simply a non-contact automatic Identification technology, and the RFID automatically identifies a target object and acquires related data through a Radio Frequency signal, so that the whole Identification work does not need manual intervention, and can work in various severe environments. RFID technology can identify objects moving at high speeds and a single very specific object, and can identify multiple tags simultaneously. Because it adopts radio frequency, can see through the outside material and read data, can discern a plurality of objects simultaneously moreover, so, more convenient and fast, except these, still have the biggest characteristic can the storage information.

RFID application case. The development of the internet of things technology promotes the application of Radio Frequency Identification (RFID), and more electronic tags in different packaging forms are provided. The RFID technology has been applied to the fields of manufacturing process control and management, transportation management, industrial and agricultural product tracing management, livestock breeding management, retail logistics distribution, electronic port and inspection and quarantine management, large-scale activities, military equipment and material management, and national power grid and book archive management, and gradually forms large-scale application. The electronic tag is mainly applied to the fields of clothing tags, RFID tickets, manufacturing logistics and supply chains, military affairs, book archives, commercial retail, animals, vehicles, medical treatment, aviation, postal service and the like. According to the use requirements of international standards on electronic tags in different frequency bands, the functions of the electronic tags are gradually accepted and confirmed by people in various industries and fields.

3. Antenna manufacturing method

(1) Etching method: the etching method is to etch the shape of the antenna on the metal foil film by acid-base reaction, and the electroforming method is an antenna production method to deposit the shape of the antenna on the surface of the antenna substrate by electrochemical principle in an electroforming tank. For the etching process, the produced antenna has high precision, can be matched with an interrogation signal of a reader-writer, and has good impedance, radio frequency performance applied to articles and the like.

(2) A winding method: the winding method is a method of winding a metal coil on a die by a mechanical device. When the coil winding method is used for manufacturing the RFID tag, a tag coil is wound on a winding tool and is fixed, and the number of turns of the antenna coil is required to be large (the typical number of turns is 50-l 500 turns). The method is used for RFID tags with the frequency ranges of 13.56Mhz and 125-134 KHz, and has the defects of high cost and low production speed, so that the method is only suitable for producing low-frequency and high-frequency antennas, is not suitable for producing ultrahigh-frequency radio-frequency antennas, and has low production efficiency. The efficiency of radio frequency antenna production by electroforming is lower.

(3) Electroforming or electrochemical methods: the basic process is that firstly, the electroplated seeds are printed on the insulating substrate in a printing mode, and then the insulating substrate is placed into an electroplating bath for electroplating, so that the production of the antenna is completed. The method has the advantages of long antenna production period, low speed and low production efficiency, and the flushing liquid and the electroplating waste liquid in the electroplating process can cause pollution to the environment.

(4) A printing method: the basic process is as follows: the conductive ink is directly used to print conductive circuit on the insulating substrate (film) to form antenna and circuit, also called additive method manufacturing technology. The main printing methods have been extended from screen printing alone to offset printing, flexographic printing, gravure printing, etc., wherein screen printing and gravure printing become more mature manufacturing processes. For the printing method, the radio frequency antenna produced by the printing method is affected by the uneven distribution of the conductive metal particles in the ink, the consistency is poor, the quality stability is insufficient, and the performance is much worse than that of the antenna produced by the etching method.

(5) Die cutting method: at present, many antenna manufacturers invest in resources to study, but qualified products are not taken out, and large-scale production is not realized.

The technical defects of the prior art are as follows:

the existing passive RFID electronic tag antenna is made by an etching process after aluminum foil is compounded on a PET film no matter at high frequency or ultrahigh frequency. Because of the adoption of a large number of PET films, the cost is high, PET is not easy to degrade, and the label causes long-term pollution to the environment after being used.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the paper base material radio frequency antenna is provided, the antenna production cost is reduced, and the pollution of electronic tag products to the environment is reduced.

The production method of the paper substrate radio frequency antenna comprises the following steps:

(1) film coating: heating the plastic material, melting the plastic material into liquid, coating the liquid on the surface of the paper base material, cooling and solidifying into a laminating layer; and coating the paper substrate on both sides.

(2) End face waterproofing: coating a waterproof material on the edge end face of the paper base material after the film is sprayed;

(3) compounding metal film layers: coating a composite adhesive layer and a composite metal film layer on the surface of the laminating layer;

(4) printing protective gloss oil: printing protective gloss oil on the surface of the metal film layer;

(5) the antenna is etched.

Preferably, the plastic material is added into a spiral propeller to be heated and melted into liquid on the laminating equipment, the liquid is coated on the surface of the paper base material through a coating head, the cooling roller is used for cooling, and the coated plastic layer is solidified into the laminating layer.

Preferably, the paper base material is coated paper, offset paper or glassine paper; the plastic material is polyethylene PE.

Preferably, the metal film layer is an aluminum foil layer or a copper foil layer.

Preferably, the waterproof material is silicone oil; the coating range of the silicone oil is within 2-5mm of the edge, so that the silicone oil is prevented from coating and polluting other parts of the film coating surface.

Preferably, in the step (4), the ultrahigh frequency antenna is manufactured, the single-side film coating layer is compounded with the metal film layer, and the metal film layer is printed with the protective varnish. The single-side laminated film layer composite metal film layer refers to a single-side laminated film layer composite metal film layer.

Preferably, in the step (4), the high-frequency antenna is manufactured, the metal film layers are compounded on the two side film coating layers, the high-frequency antenna protection gloss oil is printed on one side of the metal film layer, and the high-frequency bridge protection gloss oil is printed on the other side of the metal film layer. The metal film layers are compounded on the double-sided laminated film layers: the two side film layers are compounded with metal film layers.

Preferably, after the high-frequency antenna is etched, conducting holes are formed in the high-frequency antenna and the high-frequency overpass to form a complete coil loop.

Paper substrate radio frequency antenna, including the paper substrate layer, paper substrate layer two sides all is equipped with drenches the rete, the paper substrate layer with drench the rete edge terminal surface and be equipped with the waterproof layer, wherein the one side drenches through compound glue film composite hyperfrequency antenna on the rete.

Preferably, the PE layer is a polyethylene PE layer;

preferably, the material of the paper substrate layer is coated paper, offset paper or glassine paper.

Preferably, the water-proof layer is a silicone oil layer.

Preferably, the ultrahigh frequency antenna is compounded with the lamination layer through the composite glue layer.

The paper substrate radio frequency antenna comprises a paper substrate layer, wherein two surfaces of the paper substrate layer are both provided with a laminating layer, the edge end faces of the paper substrate layer and the laminating layer are provided with waterproof layers, and one surface of the laminating layer is provided with a composite high-frequency antenna through a composite adhesive layer A; the other side of the laminating film layer is compounded with a high-frequency gap bridge through a compound adhesive layer B, and a complete coil loop is formed by the high-frequency antenna and the high-frequency gap bridge through a via hole.

Preferably, the PE layer is a polyethylene PE layer;

Preferably, the water-proof layer is a silicone oil layer.

Preferably, the high-frequency antenna and the high-frequency gap bridge are compounded with the lamination layer through the compound adhesive layer.

Technical analysis:

1. and (3) a laminating process technology. Common paper is paper made from different pulps passing through a paper machine. Are easy to be soaked and deformed by water or aqueous solution and lose the original strength. The utility model discloses at the radio frequency antenna in-process of design preparation paper substrate, in order to protect the intensity of paper material, need carry out water repellent to the paper surface, the membrane technology that drenches that here proposes drenches the membrane through drenching the membrane on the paper surface and handles, forms the PE membrane face on the paper surface, forms the protective layer to the paper.

2. And (5) waterproofing treatment of the end face of the coiled material. Paper substrate be web material, the paper surface through drenching membrane technology and handling has possessed waterproof function, but two edges of this paper substrate still have the problem of soaking. The utility model discloses according to the grease composition is absorbed by the paper material easily, has the characteristic of hydrophobicity again, adopts silicon oil or other grease materials to handle the edge of paper substrate, forms a hydrophobic region at paper substrate edge to it can not be infiltrated by water or aqueous solution and causes the damage to have protected the paper substrate.

Compared with the prior art, the production method of the paper substrate radio frequency antenna has the beneficial effects that:

1. the utility model discloses an adopt the paper substrate surface to drench the membrane technology, strengthened the intensity of paper substrate to realized the waterproof problem in paper substrate surface, and through drenching the marginal terminal surface water repellent of membrane back paper substrate, realized that the paper substrate replaces current PET membrane as the substrate, accomplish the production of antenna through etching process, reduced the manufacturing cost of antenna, reduced the pollution of electronic tags product to the environment.

2. The polyethylene PE is adopted to coat the paper base material, so that the problems of low strength and non-waterproofness of the paper base material are solved, and meanwhile, an electronic tag antenna which is made of PET as the base material is not easy to break and cannot be directly used for anti-counterfeiting; the PET material is a film material which is not easy to degrade, and causes long-term pollution to the environment. And secondly, the PE material is coated on the paper base material, so that the anti-counterfeiting paper is good in fragility and can be used for anti-counterfeiting, and in addition, the pollution to the environment is greatly reduced because the paper base material is convenient to degrade. .

3. Drench membrane back paper substrate edge oil blanket and realize waterproofly, through the utility model discloses easily absorbed by the paper material according to the grease composition, have the characteristic of hydrophobicity again, adopt silicon oil or other grease materials to handle the edge of paper substrate 1, at 1 edge formation hydrophobic area of paper substrate to protected paper substrate 1 can not be infiltrated by water or aqueous solution and caused the damage.

Compared with the prior art, paper substrate radio frequency antenna's beneficial effect be:

the utility model discloses an adopt paper substrate layer two sides to set up and drench the rete to and edge end face sets up the waterproof layer, replace the PET rete as the antenna substrate, reduced the manufacturing cost of antenna, reduced the pollution of electronic tags product to the environment.

Drawings

FIG. 1: the schematic diagram of the laminating structure of the paper base material of the embodiment of the utility model,

FIG. 2: the structure of the single-sided antenna made of paper substrate in one embodiment of the utility model is schematically shown,

FIG. 3: the structure of the paper-based double-sided antenna of one embodiment of the utility model is schematically shown,

FIG. 4: the printing schematic diagram of the ultra-high frequency antenna protection gloss oil of the embodiment of the utility model,

FIG. 5: the printing schematic diagram of the high-frequency antenna protection gloss oil of the embodiment of the utility model,

FIG. 6: the high-frequency gap bridge protection gloss oil printing schematic diagram of the embodiment of the utility model,

FIG. 7: the structure of the ultrahigh frequency antenna made of paper substrate in one embodiment of the utility model is schematically shown,

FIG. 8: the structure of the paper-based high-frequency antenna of one embodiment of the utility model is schematically shown,

FIG. 9: the paper substrate high-frequency antenna gap bridge structure of the embodiment of the utility model is schematically shown,

FIG. 10: the utility model discloses a paper substrate high frequency antenna of an embodiment constitutes the schematic diagram.

In the figure: 1. the antenna comprises a lamination layer A2, a paper base material layer 3, a lamination layer B4, a composite adhesive layer A5, a metal film layer A6, a composite adhesive layer B7, a metal film layer B8, a paper base material single-face antenna material 9, ultrahigh frequency antenna protection gloss oil 10, a paper base material double-face antenna material 11, high frequency antenna gap bridge protection gloss oil 12, an ultrahigh frequency antenna 13, a high frequency antenna 14, a high frequency gap bridge 15, a gap bridge connecting disc 16, an antenna connecting disc 17, a waterproof layer 18, a via hole 19 and high frequency antenna protection gloss oil.

Detailed Description

The technical solution in the embodiments of the present invention will be further clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention:

example 1

Manufacturing the paper substrate ultrahigh frequency copper antenna:

(1) film coating: selecting and using 80 g/square meter coiled offset paper, selecting high-pressure polyethylene material on a film coating device, heating and pushing high-pressure polyethylene particles by a spiral propeller, melting into liquid polyethylene, coating the molten polyethylene on the surface of coiled paper by a coating head, and instantly solidifying the coated polyethylene on the surface of a paper base material to form a film coating layer under the rotating and cooling of a cooling roller. And respectively carrying out film coating treatment on two surfaces of the offset paper. As shown with reference to fig. 1.

(2) End face waterproofing: edge sealing oil realizes end face waterproofing, edge processing needs to be cut according to needs through the offset paper subjected to laminating processing, and then silicon oil heated by a felt wheel is coated on two edges of the laminated offset paper on a dry coating machine. It is particularly noted that the range of silicone oil coating is strictly controlled within the range of 2-5mm at the edge, and silicone oil cannot be coated to pollute other parts of the laminating surface. As shown with reference to fig. 1.

(3) Compounding a copper film layer: selecting a copper foil with the thickness of 12 microns as an antenna material, adopting polyurethane aluminum plastic composite curing glue, gluing the laminated layer on a coating machine, then compounding the laminated layer with the copper foil, rolling, curing to complete copper film compounding, and preparing the paper base material single-sided antenna material. As shown with reference to fig. 2.

(4) Printing antenna protection gloss oil: according to the design draft of the ultrahigh frequency antenna, a gravure engraving plate is manufactured, UV gloss oil is selected on a gravure press, the ultra-high frequency antenna protection gloss oil 9 and an alignment cursor are printed on the antenna surface of the paper substrate single-sided antenna material 8, namely the copper film layer, and after the UV lamp irradiation, the gloss oil is instantly cured to form a protection layer. As shown with reference to fig. 4.

(5) Etching the antenna: selecting 35% ferric trichloride as an antenna etching agent, placing the ferric trichloride in different etching grooves, printing an antenna material of the ultrahigh frequency antenna protection gloss oil, after passing through each etching groove, corroding a copper foil part without the printed protection gloss oil through a chemical reaction, leaving an antenna part with the protected gloss oil on a paper substrate, reacting redundant ferric trichloride with reducing agent iron powder, washing the antenna protection gloss oil with 5% liquid alkali solution, washing with water, performing a wind spraying process to dry, and winding to obtain the ultrahigh frequency antenna of the paper substrate. As shown with reference to fig. 7.

Hyperfrequency antenna, including

paper substrate layer

2, 2 two sides of paper substrate layer all are equipped with the drenches the rete, drench the rete including drenching rete A1 and drenching rete B3, drench rete A, paper substrate layer 2 and drench rete B edge end face and seal oil and be equipped with waterproof layer 17, drench and pass through compound glue film composite hyperfrequency antenna 12 on the rete A, compound glue film adopts polyurethane plastic-aluminum composite curing glue. As shown with reference to fig. 2 and 7.

Example 2

Manufacturing a paper substrate high-frequency aluminum antenna:

(1) film coating: selecting 65 g/square meter coiled glassine raw paper, selecting high-pressure polyethylene material on a laminating device, heating and pushing high-pressure polyethylene particles by a spiral propeller, melting into liquid polyethylene, coating the molten polyethylene on the surface of coiled paper by a coating head, and instantly solidifying the coated polyethylene on the surface of a paper base material into a laminating layer under the rotating and cooling of a cooling roller. And respectively carrying out film coating treatment on two surfaces of the glassine base paper. As shown with reference to fig. 1.

(2) End face waterproofing: edge sealing oil is used for achieving end face water prevention, the glassine paper subjected to laminating treatment needs to be cut according to needs, and then heated silicone oil is coated on two edges of the laminated glassine paper by using a felt wheel on a dry coating machine. It is particularly noted that the range of silicone oil coating is strictly controlled within the range of 2-5mm at the edge, and silicone oil cannot be coated to pollute other parts of the laminating surface. As shown with reference to fig. 1.

(3) Compounding an aluminum film layer: the high-frequency antenna needs to be respectively compounded with aluminum foils on two surfaces of a paper base material. The aluminum foil with the thickness of 38 microns is selected as a metal film layer A5 on the antenna surface, the aluminum foil with the thickness of 12 microns is selected as a metal film layer B7 on the bridge surface, polyurethane aluminum-plastic composite curing glue is adopted, glue is coated on laminating paper on a coating machine, the laminating paper and the aluminum foil are compounded, and after rolling and curing, aluminum film compounding is completed, so that the paper-based double-sided antenna material 10 is obtained. As shown with reference to fig. 3.

(4) Printing protective gloss oil: respectively manufacturing an antenna coil gravure engraving plate and a gap bridge engraving plate according to a design draft of a high-frequency antenna, selecting UV gloss oil on a gravure press, and printing high-frequency antenna protection gloss oil 19 and an alignment cursor on an antenna surface of a paper substrate double-sided antenna material 10, namely a 38-micron aluminum foil layer; a high-frequency antenna gap bridge protective varnish 11 is printed on a paper substrate double-sided antenna material 10, namely a 12-micron aluminum foil layer, in alignment with the position of an antenna. After being irradiated by a UV lamp, the gloss oil is instantly cured to form a protective layer. As shown with reference to fig. 5 and 6.

(5) Etching the antenna: selecting hydrochloric acid with the concentration of 25% as an antenna etching agent, placing the antenna etching agent in different acid-washing etching tanks, printing a paper substrate double-sided antenna material 10 with high-frequency antenna protection gloss oil and high-frequency bridge protection gloss oil, after passing through each acid-washing tank, etching away an aluminum foil part without printing the protection gloss oil through chemical reaction, leaving an antenna part with the protection gloss oil on the paper substrate, neutralizing the antenna part with 5% liquid alkali at the temperature of 45-50 ℃, washing away the antenna protection gloss oil, washing with water, entering a wind-showering process for drying, and winding to complete antenna etching. The high-frequency antenna protection gloss oil and the high-frequency gap bridge protection gloss oil can be both UV gloss oil. As shown with reference to fig. 8-9.

(6) Manufacturing a via hole: and designing a conducting punching die cutting circular knife according to the antenna jump distance and the line distance, rotating the die cutting machine, accurately punching the conducting hole 18 on the antenna connecting disc 16 and the gap bridge connecting disc 15 through positioning die cutting adjustment, forming a complete LC resonance loop by the antenna coil, and obtaining the high-frequency antenna 13 of the paper base material. As shown with reference to fig. 10.

High frequency antenna, including

paper substrate layer

2, 2 two sides of paper substrate layer all are equipped with the rete, the rete includes drench rete A1 and drench rete B3, drench rete A, paper substrate layer 2 and drench rete B edge terminal surface and seal oil and be equipped with waterproof layer 17, drench the compound high frequency antenna 12 of compound glue film A4 on the rete A, through compound glue film B6 compound high frequency gap bridge 14 on the rete B. The composite adhesive layer A and the composite adhesive layer B can adopt polyurethane aluminum plastic composite curing adhesive. As shown with reference to fig. 3 and 8-10.

The utility model discloses in to the direction of structure and the description of relative position relation, it is right not to constitute like the description from top to bottom all around the utility model discloses a restriction only is the description convenient.

Claims

1. The utility model provides a paper substrate radio frequency antenna, its characterized in that, includes paper substrate layer (2), and paper substrate layer (2) two sides all are equipped with drenches the rete, and paper substrate layer (2) and drench rete edge terminal surface and be equipped with waterproof layer (17), wherein one side drenches compound hyperfrequency antenna (12) through compound glue film on the rete.

2. The paper substrate radio frequency antenna of claim 1, wherein the lamination layer is a Polyethylene (PE) layer.

3. The paper substrate radio-frequency antenna as recited in claim 1, wherein the paper substrate layer (2) is made of coated paper, offset paper or glassine paper.

4. The paper substrate radio frequency antenna of claim 1, wherein the water-resistant layer is a silicone oil layer.

5. A paper base material radio frequency antenna is characterized by comprising a paper base material layer (2), wherein two surfaces of the paper base material layer (2) are both provided with a laminating layer, the edge end surfaces of the paper base material layer (2) and the laminating layer are provided with waterproof layers (17), and one laminating layer is compounded with a high-frequency antenna (13) through a compound adhesive layer A; the other side of the laminating film layer is compounded with a high-frequency gap bridge (14) through a compound adhesive layer B, and a complete coil loop is formed by the high-frequency antenna (13) and the high-frequency gap bridge (14) through a via hole (18).

6. The paper substrate radio frequency antenna of claim 5, wherein the lamination layer is a Polyethylene (PE) layer.

7. The paper substrate radio-frequency antenna as claimed in claim 5, wherein the paper substrate layer (2) is made of coated paper, offset paper or glassine paper.

8. The paper substrate radio frequency antenna of claim 5, wherein the water-resistant layer is a silicone oil layer.