CN104347944A - Manufacturing method of metal-directly-plated RFID (radio frequency identification) electronic tag antenna - Google Patents
Manufacturing method of metal-directly-plated RFID (radio frequency identification) electronic tag antenna Download PDFInfo
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- CN104347944A CN104347944A CN201410614210.XA CN201410614210A CN104347944A CN 104347944 A CN104347944 A CN 104347944A CN 201410614210 A CN201410614210 A CN 201410614210A CN 104347944 A CN104347944 A CN 104347944A
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Abstract
The invention discloses a manufacturing method of a metal-directly-plated RFID (radio frequency identification) electronic tag antenna. The antenna is formed by sequentially arranging a pre-coating layer, an antenna pattern layer, a metal-directly-plated layer and a surface coating layer. The manufacturing method comprises the following steps of pre-coating a base material, designing the antenna, preparing a pattern anilox roller, printing an anilox roller pattern, directly plating metal in vacuum, coating a surface coating and the like. Due to the fact that the antenna is directly formed by melting and evaporating a metal raw material in vacuum at high temperature, and evaporating the metal raw material onto the base material according to the designed antenna pattern, and subsequent manufacturing steps such as aluminum washing or hot stamping are not required, the production process is simplified. The manufacturing method of the metal-directly-plated RFID electronic tag antenna is capable of reducing radio frequency antenna manufacturing cost, environment-friendly, simple in process and high in production efficiency, and the defects of high cost, environment pollution and the like of the current electronic tag antenna manufacturing method are overcome.
Description
Technical field
The present invention relates to antenna manufacturing method, especially a kind of manufacture method of radio-frequency (RF) identification (RFID) electronic label antenna.
Background technology
Radio-frequency identification card (RFID, radio frequency identification), be a kind of typical non-contact IC card, it utilizes wireless communication technology to realize exchanges data between system and IC-card.
The feature of RFID label tag has the features such as volume is little, capacity is large, the life-span is long, reusable, can realize non-visual recognition, need not manual intervention, fast reading and writing, mobile identifications, multi-targets recognition, location and long-term follow manage.RFID technique has been widely used in the industries such as the Internet, communication, sale, logistics, manufacture, tourism, management, public information service, improves management and operating efficiency.Estimate, will have be used in all trades and professions more than 4,000 hundred million pieces of RFID label tag in 2015, expectation reaches up to 25,000,000,000 dollars by the output value in global RFID market.
RFID label tag by the difference of Power supply mode be divided into passive, half active and active three kinds; Low frequency (about 125 KHz), high frequency (about 13.56 MHz), hyperfrequency (860 ~ 960 MHz) and microwave frequency band (about 2.45 GHz) can be divided into by the difference of operating frequency; The type of RFID antenna mainly contains the antenna of coil form, microband paste type, dipole-type three kinds of citation forms.RFID antenna is the medium that rfid card and read write line realize data communication, and passive rfid card chip wants start-up circuit need of work antenna to obtain enough energy at the elect magnetic field that reading and writing device antenna produces, and information just can be made to transmit normally.Therefore, " antenna " plays vital effect in RFID technique.
At present, the manufacture method of common RFID electric tag antenna has following several: (1) winding process (CN201048162Y, a kind of rfid interrogator Antenna Design); (2) etching method (manufacture method of CN101197462A, RFID etching aluminum antenna); (3) silk screen printing (CN101717557A, a kind of hot curing conductive silver slurry making radio-frequency (RF) identification (RFID) label antenna); (4) galvanoplastic (manufacture method of CN1893003A wiring board and semiconductor device).
But this several technique all comes with some shortcomings.As winding process cost is too high, and antenna pattern is limited; The manufacturing process of etching or galvanoplastic produces the waste liquid of a large amount of containing metal and chemical substance, causes larger pollution to environment.
What current application was maximum is silk screen printing, although the electric conductivity that silk screen printing makes RFID antenna is good, but silk screen printing antenna also has weak point, as: printing silver slurry circuit on the substrate can need solidify through the tunnel type drying tunnel of more than 130 ~ 200 DEG C and baking oven heat drying, thus realize conductivity, heat treatment limits the selection of printable fabric, or need carry out thermal finalization process to material; The print speed printing speed of silk screen printing is comparatively slow, and production efficiency is lower, and printing precision is not enough, can not meet the requirement of fine conductive circuit, and noble silver content generally will reach 50% even more high-load, and add that layer of ink is thick, cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method that can reduce radio-frequency antenna manufacturing cost, environmental protection, technique is simple, production efficiency is high RFID electric tag antenna, to overcome the shortcoming such as high expensive, contaminated environment that existing electronic label antenna manufacture method exists.
The concrete technical scheme realizing the object of the invention is:
A kind of manufacture method of metal straight plating RFID electric tag antenna, feature is: this antenna be substrate layer to set gradually precoated shet, antenna pattern layer, metal straight coating, finishing coat formed (wherein precoated shet and finishing coat are for according to actual needs, optional processing step); Concrete making comprises the following steps:
(1), base material or base material precoating
Use plastic film or paper as base material, or carry out precoating process to the one side of base material with pre-coating, base material thickness is 0.01 ~ 2.0 mm; Be applied in advance antenna the fineness of machined surface that is applicable to and surperficial adaptive, form antenna machined surface;
(2), Antenna Design
Specify the operating frequency of antenna, impedance, magnetic field intensity, quality factor and reading/writing distance, design the shape and size of antenna;
(3), figure forme roller is made
According to designed antenna pattern, laser or electric carving, on flexible printing forme, make the forme roller being carved with antenna pattern, and the position of antenna pattern is negative indent, and other position is that positive image is protruded;
(4), printed antenna figure
Be delivered on forme roller by anilox roll by directly plating oil; The base material of base material or precoating process is rolled across on forme roller surface, the antenna pattern that substrate surface transfer printing designs; This step completes in the cavity of vacuum coating equipment;
(5), vacuum metal directly plates
Adopt vacuum coating mode to carry out metal straight plating to the base material transferred with antenna pattern, on its base material, the coat of metal has been gone up with regard to attachment by non-straight plating oil reservoir district, and Zhi Du oil reservoir district, local metal level is non-cohesive, presents clear area; Metal straight plating thickness is 0.03 ~ 2.00 μm;
(6), coated face coating
To the base material coated face coating carrying out metal straight plating antenna pattern, guard metal layer oxidation deterioration and scratch, improve the surperficial adaptability of coating, as moisture resistance, chemical resistance, printability, increases cladding wearability, glossiness and aesthetics; Wherein:
Described base material precoating process completes on coating machine, and the speed of a motor vehicle of coating machine is 80 ~ 180 m/min, and the drying tunnel warm area in coating machine controls between 70 ~ 150 DEG C, and coating dry measure is 1.0 ~ 2.0 g/m
2;
Described straight plating oil can at normal temperature and 1.333 × 10
-1~ 1.333 × 10
-6keep lubrification under Pa vacuum environment, viscosity 10 ~ 10000 mPas, under normal temperature, saturated vapor pressure is 0 ~ 1 × 10
-3pa;
The line number of described anilox roll is 120 ~ 200, and working temperature is 50 ~ 150 DEG C, the speed of a motor vehicle 200 ~ 740 m/min;
The coating of described coating materials completes on coating machine, and the speed of coating machine is 80 ~ 150 m/min, and the drying tunnel warm area in coating machine controls between 80 ~ 160 DEG C.Coating dry measure is 0.8 ~ 1.5 g/m
2.
Described plastic film is: the one or more combination in PET, PC, PVC, PVA, OPP, PE, CPP and PS; Described paper is: art paper, paperboard or fragile paper.
Described straight plating oil is the one or more combination in paraffin base mineral oil, silicone oil, perfluoro polyether oil.
Described metal straight plating raw material is: 1 × 10
-3under Pa vacuum condition, gasification point is lower than the metal of 2000 DEG C or non-metal semiconductor materials.
Described metal or non-metal semiconductor materials are: the one or more combination in iron, chromium, manganese, aluminium, magnesium, copper, zinc, tin, nickel, gold, silver and silicon.
The vacuum degree of the vacuum coating equipment of described metal straight plating is 1 × 10
-3~ 1 × 10
-1pa.With resistance, high frequency or electron beam to coat of metal heating raw materials, make coat of metal heating raw materials to 1000 ~ 2000 DEG C of gasifications, coat of metal raw material after gasification promptly evaporates, spread and deposit on the surface of plated parts, thus completes the evaporate process of metal pattern layer on base material.
Described coating materials is: the one or more combination in novolaks, polyurethane lacquer, acrylic lacquer, epoxy resin varnish and fluorine carbon varnish.
Described pre-coating is: the one in acrylic acid, epoxy, polyurethane, polyethylene and polyester coating.
The present invention compares existing RFID antenna manufacture method, mainly contains the advantage of three aspects:
1), conventional etch method and galvanoplastic make metal antenna, and cost is higher, complex process, and finished product Production Time is long, and the present invention makes the metal straight plating method of antenna, and efficiently fast, cost of manufacture will lower than traditional metal antenna production method.The present invention can replace the etching antenna of each frequency band, as hyper band (860 ~ 950 MHz) and microwave frequency band (2450 MHz), simultaneously the quality of the antenna antenna that can make with traditional handicraft is comparable, and this cost of manufacture for reduction electronic tag has very large meaning.
The manufacturing process of conventional etch or electroplating technology produces the waste liquid of a large amount of containing metal and chemical substance, cause larger pollution to environment, metal straight plating method adopts vapor phase metal directly on base material, to carry out evaporation, not containing erosive material, without the use of chemical reagent, there is the advantage of " green " environmental protection.
2), compare vacuum aluminum-coated after to be made the technique of RFID antenna by the mode of washing aluminium, the present invention's do not need to aluminize cleaning after step and heat dries drying steps, and technique is simple, and saves the cost with water and power consumption.In addition, wash aluminium mode due to base material in process and will contact water and heated drying, the selection of substrate material thus limited.And manufacture craft whole process of the present invention can not contact water, the Application Range of base material and coating is wider, can select and generally can not contact water or water miscible substrate material, as PVA, PEO, EVOH, protein-based film, starch based film etc.
3) antenna that anodized aluminium film is obtained by follow-up thermoprint mode, is compared, in technique of the present invention, base material need not contact high temperature (being less than 100 DEG C), avoid hot stamping and with the restriction of high temperature resistant base material, must can use substrate material as lower in fusing points such as POE, EVA, EPDM, PE, PS, ABS.And the RFID antenna that the present invention makes, the anodized aluminium waste material after not having hot stamping process to make produces.
The beneficial effect that metal straight plating method of the present invention makes RFID electric tag antenna is: make RFID antenna printing technology increased quality one step, electrical property etc. are obtained for raising; With film, paper as disposable substrate layer, serve false proof effect, avoid and utilized for the second time; Simplify traditional RFID antenna manufacture craft, make RFID antenna can as offset printing quick copy in enormous quantities, substantially increase production efficiency, reduce cost.In addition, transfer aluminum plated, the radium-shine embossing technique that all right affix is traditional on basis of the present invention, is made into laser holographic RFID antenna, is organically combined by holographic false proof with RFID technique, thus increases the aesthetics of product further, improves anti-counterfeiting power.
Accompanying drawing explanation
Fig. 1 is the structural representation of RFID electric tag antenna of the present invention, and wherein, * is optional layer;
Fig. 2 is the fabrication processing figure of RFID electric tag antenna of the present invention, and wherein, * is optional step.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail, but the present embodiment can not be used for limiting the present invention, and all employings similarity method of the present invention and similar change thereof, all should list protection scope of the present invention in.
Embodiment 1
The present embodiment provides a kind of RFID thin film aluminum antenna, obtains as follows:
Substrate layer is PET film, thickness 20 μm; The shape and size designing antenna are needed by embody rule; According to designed antenna pattern, laser engraving, on flexible printing forme, makes the forme roller being carved with antenna pattern; In vacuum coating equipment cavity, directly will plate oil (mineral oil, the precious LVO108 of German Lay) by anilox roll (line number is 180) and be delivered on forme roller; Base material rolls across on forme roller surface, antenna pattern in transfer printing, forms antenna pattern layer, temperature 80 DEG C, vacuum condition 1 × 10
-2pa; Coating material is aluminium, vacuum condition 4 × 10
-3pa, carry out metal straight plating to the PET film going up the straight plating in local oil reservoir, the speed of a motor vehicle is 450 m/min, thickness of coating 0.2 μm; To the metal layer coating (acrylic lacquer) having plated antenna pattern, the speed of a motor vehicle 90 m/min, drying tunnel temperature 90 ~ 100 DEG C, coating dry measure 1.1 g/m
2.It is 0.48 Ω/sq that the antenna of gained records square resistance.
Embodiment 2
The present embodiment provides a kind of RFID film copper antenna, obtains as follows:
Substrate layer is PVC film, thickness 30 μm; The shape and size designing antenna are needed by embody rule; According to designed antenna pattern, laser engraving, on flexible printing forme, makes the forme roller being carved with antenna pattern; In vacuum coating equipment cavity, directly will plate oil (silicone oil, DOW CORNING DC705) by anilox roll (line number is 200) and be delivered on forme roller; Base material rolls across on forme roller surface, antenna pattern in transfer printing, forms antenna pattern layer, temperature 100 DEG C, vacuum condition 1 × 10
-2pa; Coating material is copper, vacuum condition 1 × 10
-3pa, carry out metal straight plating to the PVC film going up the straight plating in local oil reservoir, the speed of a motor vehicle is 350 m/min, thickness of coating 0.35 μm.It is 0.14 Ω/sq that the antenna of gained records square resistance.
Embodiment 3
The present embodiment provides a kind of RFID paper substrate silver antenna, obtains as follows:
Substrate layer is art paper 90 g/m
2; Carry out precoating to the one side of art paper, pre-coating is polyethylene, the speed of a motor vehicle 120 m/min, drying tunnel warm area 110 ~ 130 DEG C, and coating dry measure is 1.3 g/m
2; The shape and size designing antenna are needed by embody rule; According to designed antenna pattern, laser engraving, on flexible printing forme, makes the forme roller being carved with antenna pattern; In vacuum coating equipment cavity, directly will plate oil (perfluoro polyether oil, Fomblin YR-1800) by anilox roll (line number is 120) and be delivered on forme roller; Base material rolls across on forme roller surface, antenna pattern in transfer printing, forms antenna pattern layer, temperature 120 DEG C, vacuum condition 2 × 10
-1pa; Coating material is silver, vacuum condition 6 × 10
-2pa, carry out metal straight plating to the art paper going up the straight plating in local oil reservoir, the speed of a motor vehicle is 650 m/min, thickness of coating 0.05 μm; To the metal layer coating (fluorine carbon varnish) having plated antenna pattern, the speed of a motor vehicle 120 m/min, drying tunnel temperature 95 ~ 115 DEG C, coating dry measure 1.5 g/m
2.It is 0.70 Ω/sq that the antenna of gained records square resistance.
Claims (8)
1. a manufacture method for metal straight plating RFID electric tag antenna, it is characterized in that this antenna be substrate layer to set gradually precoated shet, antenna pattern layer, metal straight coating, finishing coat formed, concrete making comprises the following steps:
(1), base material or base material precoating
Use plastic film or paper as base material, or with pre-coating, precoating process is carried out to the one side of base material, form antenna machined surface; Base material thickness is 0.01 ~ 2.0 mm;
(2), Antenna Design
Specify the operating frequency of antenna, impedance, magnetic field intensity, quality factor and reading/writing distance, design the shape and size of antenna;
(3), figure forme roller is made
According to designed antenna pattern, laser or electric carving, on flexible printing forme, make the forme roller being carved with antenna pattern, and the position of antenna pattern is negative indent, and other position is that positive image is protruded;
(4), printed antenna figure
Be delivered on forme roller by anilox roll by directly plating oil; The base material of base material or precoating process is rolled across on forme roller surface, the antenna pattern that substrate surface transfer printing designs; This step completes in the cavity of vacuum coating equipment;
(5), vacuum metal directly plates
Adopt vacuum coating mode to carry out metal straight plating to the base material transferred with antenna pattern, on its base material, the coat of metal has been gone up in non-straight plating oil reservoir district attachment, and Zhi Du oil reservoir district, local metal level is non-cohesive, presents clear area; Metal straight plating thickness is 0.03 ~ 2.00 μm;
(6), coated face coating
To the base material coating or the not coated face coating that carry out metal straight plating antenna pattern; Wherein:
Described base material precoating process completes on coating machine, and the speed of a motor vehicle of coating machine is 80 ~ 180 m/min, and the drying tunnel warm area in coating machine controls between 70 ~ 150 DEG C, and coating dry measure is 1.0 ~ 2.0 g/m
2;
Described straight plating oil can at normal temperature and 1.333 × 10
-1~ 1.333 × 10
-6keep lubrification under Pa vacuum environment, viscosity 10 ~ 10000 mPas, under normal temperature, saturated vapor pressure is 0 ~ 1 × 10
-3pa;
The line number of described anilox roll is 120 ~ 200, and working temperature is 50 ~ 150 DEG C, the speed of a motor vehicle 200 ~ 740 m/min;
The coating of described coating materials completes on coating machine, and the speed of coating machine is 80 ~ 150 m/min, and the drying tunnel warm area in coating machine controls between 80 ~ 160 DEG C; Coating dry measure is 0.8 ~ 1.5 g/m
2.
2. manufacture method according to claim 1, is characterized in that described plastic film is: the one or more combination in PET, PC, PVC, PVA, OPP, PE, CPP and PS; Described paper is: art paper, paperboard or fragile paper.
3. manufacture method according to claim 1, is characterized in that described straight plating oil is the one or more combination in paraffin base mineral oil, silicone oil, perfluoro polyether oil.
4. manufacture method according to claim 1, is characterized in that described metal straight plating raw material is: 1 × 10
-3under Pa vacuum condition, gasification point is lower than the metal of 2000 DEG C or non-metal semiconductor materials.
5. manufacture method according to claim 4, is characterized in that described metal or non-metal semiconductor materials are: the one or more combination in iron, chromium, manganese, aluminium, magnesium, copper, zinc, tin, nickel, gold, silver and silicon.
6. preparation method according to claim 1, is characterized in that the vacuum degree of the vacuum coating equipment that described metal straight plates is 1 × 10
-3~ 1 × 10
-1pa.
7. manufacture method according to claim 1, is characterized in that described coating materials is: the one or more combination in novolaks, polyurethane lacquer, acrylic lacquer, epoxy resin varnish and fluorine carbon varnish.
8. manufacture method according to claim 1, is characterized in that described pre-coating is: the one in acrylic acid, epoxy, polyurethane, polyethylene and polyester coating.
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| CN104953262A (en) * | 2015-06-23 | 2015-09-30 | 瑞声精密制造科技(常州)有限公司 | LDS (laser direct structuring) film antenna and manufacturing method thereof |
| CN106239982A (en) * | 2016-08-08 | 2016-12-21 | 深圳劲嘉集团股份有限公司 | The process units of RFID tag and technique |
| CN106273669A (en) * | 2016-08-08 | 2017-01-04 | 深圳劲嘉集团股份有限公司 | The process units of RFID tag and technique |
| CN107181060A (en) * | 2017-06-09 | 2017-09-19 | 中山金利宝胶粘制品有限公司 | UHF RFID antenna, preparation method and its RFID tag of application |
| CN107313296A (en) * | 2017-06-09 | 2017-11-03 | 中山金利宝胶粘制品有限公司 | A kind of corrosion-and high-temp-resistant paper, preparation method and its RFID antenna of application |
| CN108382719A (en) * | 2018-01-31 | 2018-08-10 | 成都优印佳科技有限公司 | Integral type RFID anti-fake bottle lids production method and system |
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| CN110110835A (en) * | 2019-05-10 | 2019-08-09 | 华南理工大学 | Electronic tag and its preparation method and application |
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| WO2022247248A1 (en) * | 2021-05-25 | 2022-12-01 | 厦门凯纳石墨烯技术股份有限公司 | Antenna structure for electronic tag, preparation method therefor, and electronic tag |
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|---|---|---|---|---|
| CN104953262A (en) * | 2015-06-23 | 2015-09-30 | 瑞声精密制造科技(常州)有限公司 | LDS (laser direct structuring) film antenna and manufacturing method thereof |
| CN106239982B (en) * | 2016-08-08 | 2019-04-26 | 深圳劲嘉集团股份有限公司 | The process units and technique of RFID tag |
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| CN106273669A (en) * | 2016-08-08 | 2017-01-04 | 深圳劲嘉集团股份有限公司 | The process units of RFID tag and technique |
| CN107181060A (en) * | 2017-06-09 | 2017-09-19 | 中山金利宝胶粘制品有限公司 | UHF RFID antenna, preparation method and its RFID tag of application |
| CN107313296A (en) * | 2017-06-09 | 2017-11-03 | 中山金利宝胶粘制品有限公司 | A kind of corrosion-and high-temp-resistant paper, preparation method and its RFID antenna of application |
| CN108382719A (en) * | 2018-01-31 | 2018-08-10 | 成都优印佳科技有限公司 | Integral type RFID anti-fake bottle lids production method and system |
| CN109986868A (en) * | 2019-04-16 | 2019-07-09 | 江苏科睿坦电子科技有限公司 | A kind of RFID label antenna peeling force lifting process of polycarbonate film |
| CN109986868B (en) * | 2019-04-16 | 2020-11-24 | 江苏科睿坦电子科技有限公司 | RFID (radio frequency identification) tag antenna stripping force improving process for polycarbonate film |
| CN110110835A (en) * | 2019-05-10 | 2019-08-09 | 华南理工大学 | Electronic tag and its preparation method and application |
| CN110110835B (en) * | 2019-05-10 | 2021-01-08 | 华南理工大学 | Electronic tag and preparation method and application thereof |
| CN110289487A (en) * | 2019-07-03 | 2019-09-27 | 讯创(天津)电子有限公司 | A kind of antenna preparation method and 5G antenna using Vacuum Deposition combination laser technology |
| CN110815973A (en) * | 2019-11-28 | 2020-02-21 | 徐州太平洋印务有限公司 | Digital printing substrate |
| WO2022247248A1 (en) * | 2021-05-25 | 2022-12-01 | 厦门凯纳石墨烯技术股份有限公司 | Antenna structure for electronic tag, preparation method therefor, and electronic tag |
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