CN104347944B - 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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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 making side of RF identification (rfid) electronic label antenna
Method.
Background technology
Radio-frequency identification card (rfid, radio frequency identification), is that one kind is typically contactless
Ic card, it is to realize data exchange between system and ic card using wireless communication technology.
The feature of rfid label has that small volume, capacity be big, life-span length, reusable the features such as, be capable of non-visual
Identify, manage without manual intervention, fast reading and writing, mobile identification, multi-targets recognition, positioning and long-term follow.Rfid technology is
Through being widely used in the industries such as the Internet, communication, sale, logistics, manufacture, tourism, management, public information service, improve pipe
Reason and work efficiency.It is expected that there will be over 400,000,000,000 pieces of rfid labels being used in all trades and professions in 2015, global rfid
Estimated reaching be will be up to 25,000,000,000 dollars by the output value in market.
Rfid label is divided into passive, semi-active and active three kinds by the difference of energy supply mode；By operating frequency not
Low frequency (about 125 khz), high frequency (about 13.56 mhz), hyperfrequency (860～960 mhz) can be divided into together and microwave frequency band is (about
2.45 ghz)；The type of rfid antenna mainly has coil form, microband paste type, the antenna of three kinds of primitive forms of dipole-type.
Rfid antenna is the medium that rfid card and read write line realize data communication, and passive rfid the core of the card piece wants start-up circuit work to need
Want antenna to obtain enough energy in the electromagnetic field that reading and writing device antenna produces, information just can be made normally to transmit.Therefore, " my god
Line " plays vital effect in rfid technology.
At present, the manufacture method of common rfid electronic label antenna has following several: (1) winding process
(cn201048162y, a kind of rfid reading and writing device antenna design)；(2) etching method (cn101197462a, rfid etching aluminum antenna
Manufacture method)；(3) silk screen printing (cn101717557a, a kind of heat cure silver making RF identification (rfid) label antenna
Electrocondution slurry)；(4) galvanoplastic (manufacture method of cn1893003a wiring board and semiconductor device).
But this several technique all comes with some shortcomings.As too high in winding process cost, and limited by antenna pattern；Etching or electricity
The manufacturing process of plating method produces the waste liquid containing metal and chemical substance in a large number, and environment is caused with larger pollution.
What at present application was most is silk screen printing although the electric conductivity that silk screen printing makes rfid antenna is good, but silk
Net printed antenna also has weak point, such as: printing silver paste circuit on the substrate need to be through more than 130～200 DEG C of tunnel
Formula drying tunnel and baking oven for heating drying can solidify, thus realizing electric conductivity, heat treatment limits the selection of printable fabric, or need
Thermal finalization process is carried out to material；The print speed printing speed of silk screen printing is slower, and production efficiency is relatively low, and printing precision is not enough it is impossible to expire
The requirement of sufficient fine conductive circuit, and noble silver content will commonly reach 50% even more high content, adds that layer of ink is thick, cost
Higher.
Content of the invention
It is an object of the invention to provide one kind can reduce radio-frequency antenna manufacturing cost, environmental protection, process is simple, production
The manufacture method of the rfid electronic label antenna of efficiency high, to overcome the cost that existing electronic label antenna manufacture method exists inclined
The shortcomings of height, pollution environment.
The concrete technical scheme realizing the object of the invention is:
The manufacture method that a kind of metal directly plates rfid electronic label antenna, feature is: this antenna be with substrate layer successively
Setting precoated shet, antenna pattern layer, the straight coating of metal, finishing coat constitute (be wherein actually needed according to precoated shet and finishing coat,
Optional processing step)；Concrete making comprises the following steps:
(1), base material or base material precoating
Plastic foil or paper are used as base material, or with pre- coating, precoating treatment, base material thickness are carried out to the one side of base material
For 0.01～2.0 mm；It is applied to fineness and the surface adaptive of the machined surface that antenna is suitable in advance, form antenna machined surface；
(2), Antenna Design
Specify operating frequency, impedance, magnetic field intensity, quality factor and the reading/writing distance of antenna, design the shape of antenna
And size；
(3), make figure forme roller
According to designed antenna pattern, laser or electric carving, on flexible printing forme, make the forme roller being carved with antenna pattern,
The position of antenna pattern is in negative image indent, and other positions are in that positive image is protruded；
(4), printed antenna figure
By anilox roll, straight plating oil is delivered on forme roller；The base material that base material or precoating treatment are crossed is in forme roller surface
Roll across, the antenna pattern that substrate surface transfer designs；This step completes in the cavity of vacuum coating equipment；
(5), vacuum metal directly plates
Enter row metal to the base material transferred with antenna pattern using vacuum coating mode directly to plate, non-straight plating oil reservoir on its base material
The coat of metal has just been adhered in area, and local Zhi Du oil reservoir area metal level is non-cohesive, assumes clear area；It is 0.03 that metal directly plates thickness
～2.00 μm；
(6), it is coated with coating materials
To the base material coating coating materials entering row metal and directly plating antenna pattern, guard metal layer oxidation deterioration and scratch, change
The surface adaptability of kind coating, such as moisture resistance, chemical resistance, printability, increase cladding wearability, glossiness and attractive in appearance
Degree；Wherein:
Described base material precoating treatment is to complete on coating machine, and the speed of coating machine is 80～180 m/min, in coating machine
Drying tunnel warm area control between 70～150 DEG C, coating dry measure be 1.0～2.0 g/m2；
Described straight plating oil can be in room temperature and 1.333 × 10-1～1.333 × 10-6Lubricity is kept under pa vacuum environment,
Viscosity 10～10000 mpa s, under room temperature, saturated vapor pressure is 0～1 × 10-3pa；
The line number of described anilox roll is 120～200, and operating temperature is 50～150 DEG C, speed 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, coating machine
In drying tunnel warm area control between 80～160 DEG C.Coating dry measure is 0.8～1.5 g/m2.
Described plastic foil is: one or more of pet, pc, pvc, pva, opp, pe, cpp and ps combination；Described paper
For: art paper, paperboard or fragile paper.
Described straight plating oil is the combination of one or more of paraffin base mineral oil, silicone oil, perfluoro polyether oil.
Described metal directly plates raw material: 1 × 10-3Under pa vacuum condition, gasification point is less than 2000 DEG C of metal or non-
Metal semiconductor material.
Described metal or non-metal semiconductor materials are: in ferrum, chromium, manganese, aluminum, magnesium, copper, zinc, stannum, nickel, gold, silver and silicon
One or more combination.
The vacuum of the vacuum coating equipment that described metal directly plates is 1 × 10-3～1 × 10-1pa.With resistance, high frequency or electricity
Beamlet heats to coat of metal raw material, makes coat of metal raw material be heated to 1000～2000 DEG C of gasifications, the coat of metal after gasification
Raw material promptly evaporates, spreads and deposits on the surface of plated part, thus completing on base material the evaporation of metal pattern layer
Journey.
Described coating materials are: in novolaks, polyurethane lacquer, acrylic lacquer, epoxy resin varnish and fluorocarbon varnish
Plant or several combination.
Described pre- coating is: one of acrylic acid, epoxy, polyurethane, polyethylene and polyester coating.
The present invention compares existing rfid antenna manufacturing method, mainly has the advantages that three aspects:
1), conventional etch method and galvanoplastic make metal antenna, relatively costly, complex process, and finished product Production Time is long, and
The present invention makes the straight plating method of metal of antenna, and efficiently quickly, cost of manufacture will be less than traditional metal antenna production method.This
The bright etching antenna that may replace each frequency band, such as hyper band (860～950 mhz) and microwave frequency band (2450 mhz), simultaneously
The quality of antenna can be comparable with the antenna that traditional handicraft makes, and this has very big for the cost of manufacture reducing electronic tag
Meaning.
The manufacturing process of conventional etch or electroplating technology produces the waste liquid containing metal and chemical substance in a large number, and environment is caused
Larger pollution, the straight plating method of metal is directly deposited with using vapor phase metal on base material, without erosive material, no chemistry examination
The use of agent, has the advantages that " green " environmental protection.
2), compare the vacuum aluminum-coated technique making rfid antenna afterwards by way of washing aluminum, the present invention does not need to aluminize
Cleaning after step and baking the affected part after applying some drugs drying steps, technique is simple, and saves the cost with water and power consumption.Additionally, washing aluminum side
Formula due to during base material to contact water and heated drying, the selection of substrate material is thus limited.And the processing technology of the present invention is complete
Journey can not contact water, and the Application Range of base material and coating is wider, can be selected for typically contacting water or water miscible base material
Material, such as pva, peo, evoh, protein-based film, starch based film etc..
3), compare the antenna that electrochemical aluminium film is obtained by follow-up thermoprint mode, in the technique of the present invention, base material need not connect
Tactile high temperature (less than 100 DEG C), it is to avoid hot stamping must with the restriction of high temperature resistant base material, can using as poe, eva, epdm,
The relatively low substrate material of the fusing points such as pe, ps, abs.And, the rfid antenna that the present invention makes, after not having hot stamping process to make
Electrochemical aluminium waste produces.
The beneficial effect that the straight plating method of metal of the present invention makes rfid electronic label antenna is: makes rfid antenna print work
Skill increased quality one step, electrical property etc. is obtained for raising；With film, paper as disposable substrate layer, serve false proof effect
Really, it is to avoid utilized for the second time；Simplify traditional rfid antenna processing technology so that rfid antenna can be as offset printing
The same high-volume quick copy, substantially increases production efficiency, reduces cost.Additionally, it is acceptable on the basis of the present invention
Traditional transfer aluminum plated, the radium-shine embossing technique of affix, is fabricated to laser holographic rfid antenna, by holographic false proof and rfid technology
Organically combining, thus increasing the aesthetics of product further, improving anti-counterfeiting power.
Brief description
Fig. 1 is the structural representation of the rfid electronic label antenna of the present invention, and wherein, * is optional layer；
Fig. 2 is the fabrication processing figure of the rfid electronic label antenna of the present invention, and wherein, * is optional step.
Specific embodiment
The present invention is described in detail with reference to embodiments, but the present embodiment cannot be used for limiting the present invention, all adopts
With similarity method and its similar change of the present invention, protection scope of the present invention all should be listed in.
Embodiment 1
The present embodiment provides a kind of rfid thin film aluminum antenna, obtains as follows:
Substrate layer is pet thin film, 20 μm of thickness；Need to design the shape and size of antenna by concrete application；According to institute
The antenna pattern of design, laser engraving, on flexible printing forme, makes the forme roller being carved with antenna pattern；In vacuum coating equipment cavity
Interior, oil (mineral oil, German Lay treasured lvo108) will directly be plated by anilox roll (line number is 180) and be delivered on forme roller；Base material exists
Forme roller surface rolls across, antenna pattern in transfer, forms antenna pattern layer, 80 DEG C of temperature, vacuum condition 1 × 10-2pa；Coating
Material is aluminum, vacuum condition 4 × 10-3Pa, enters row metal to the pet thin film going up the straight plating in local oil reservoir and directly plates, speed is 450
M/min, 0.2 μm of thickness of coating；To the metal layer coating (acrylic lacquer) having plated antenna pattern, speed 90 m/
Min, 90～100 DEG C of drying tunnel temperature, it is coated with dry measure 1.1 g/m2.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 thin film, 30 μm of thickness；Need to design the shape and size of antenna by concrete application；According to institute
The antenna pattern of design, laser engraving, on flexible printing forme, makes the forme roller being carved with antenna pattern；In vacuum coating equipment cavity
Interior, oily (silicone oil, DOW CORNING dc705) will directly be plated by anilox roll (line number is 200) and be delivered on forme roller；Base material is in forme roller
Surface rolls across, antenna pattern in transfer, forms antenna pattern layer, 100 DEG C of temperature, vacuum condition 1 × 10-2pa；Coating material
For copper, vacuum condition 1 × 10-3Pa, enters row metal to the pvc thin film going up the straight plating in local oil reservoir and directly plates, speed is 350 m/
Min, 0.35 μm of thickness of coating.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/m2；The one side of art paper is precoated, pre- coating is polyethylene, speed 120
M/min, 110～130 DEG C of drying tunnel warm area, coating dry measure is 1.3 g/m2；By concrete application need to design antenna shape and
Size；According to designed antenna pattern, laser engraving, on flexible printing forme, makes the forme roller being carved with antenna pattern；True
In empty coater cavity, oily (perfluoro polyether oil, fomblin yr-1800) transmission will directly be plated by anilox roll (line number is 120)
To on forme roller；Base material rolls across in forme roller surface, antenna pattern in transfer, forms antenna pattern layer, 120 DEG C of temperature, vacuum
Condition 2 × 10-1pa；Coating material is silver, vacuum condition 6 × 10-2Pa, is carried out to going up the straight art paper plating oil reservoir in local
Metal directly plates, and speed is 650 m/min, 0.05 μm of thickness of coating；To the metal layer coating (fluorine having plated antenna pattern
Carbon varnish), speed 120 m/min, 95～115 DEG C of drying tunnel temperature, it is coated with dry measure 1.5 g/m2.The antenna of gained records square electricity
Resistance is 0.70 ω/sq.
Claims (8)
1. a kind of metal directly plate rfid electronic label antenna manufacture method it is characterised in that this antenna be with substrate layer successively
Setting precoated shet, antenna pattern layer, the straight coating of metal, finishing coat are constituted, and concrete making comprises the following steps:
(1), base material or base material precoating
Plastic foil or paper are used as base material, or precoating treatment is carried out with pre- coating to the one side of base material, form antenna processing
Face；Base material thickness is 0.01～2.0 mm；
(2), Antenna Design
Specify operating frequency, impedance, magnetic field intensity, quality factor and the reading/writing distance of antenna, design shape and the chi of antenna
Very little；
(3), make figure forme roller
According to designed antenna pattern, laser or electric carving, on flexible printing forme, make the forme roller being carved with antenna pattern, antenna
The position of figure is in negative image indent, and other positions are in that positive image is protruded；
(4), printed antenna figure
By anilox roll, straight plating oil is delivered on forme roller；The base material that base material or precoating treatment are crossed rolls in forme roller surface
Cross, the antenna pattern that substrate surface transfer designs；This step completes in the cavity of vacuum coating equipment；
(5), vacuum metal directly plates
Enter row metal to the base material transferred with antenna pattern using vacuum coating mode directly to plate, on its base material, non-straight plating oil reservoir area is attached
The coat of metal, local Zhi Du oil reservoir area metal level is non-cohesive, assumes clear area；It is 0.03～2.00 that metal directly plates thickness
μm；
(6), it is coated with coating materials
Directly plate the base material coating of antenna pattern or be not coated with coating materials to entering row metal；Wherein:
Described base material precoating treatment is to complete on coating machine, and the speed of coating machine is 80～180 m/min, the baking in coating machine
Road warm area controls between 70～150 DEG C, and coating dry measure is 1.0～2.0 g/m2；
Described straight plating oil can be in room temperature and 1.333 × 10-1～1.333 × 10-6Lubricity, viscosity is kept under pa vacuum environment
10～10000 mpa s, under room temperature, saturated vapor pressure is 0～1 × 10-3pa；
The line number of described anilox roll is 120～200, and operating temperature is 50～150 DEG C, speed 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, in coating machine
Drying tunnel warm area controls between 80～160 DEG C；Coating dry measure is 0.8～1.5 g/m2.
2. manufacture method according to claim 1 is it is characterised in that described plastic foil is: pet, pc, pvc, pva, opp,
One or more of pe, cpp and ps combine；Described paper is: art paper, paperboard or fragile paper.
3. manufacture method according to claim 1 it is characterised in that described straight plating oil be paraffin base mineral oil, silicone oil, complete
One or more of perfluoroalkyl polyether oil combines.
4. manufacture method according to claim 1 is it is characterised in that described metal directly plates raw material is: 1 × 10-3Pa is true
Under empty condition, gasification point is less than 2000 DEG C of metal or non-metal semiconductor materials.
5. manufacture method according to claim 4 is it is characterised in that described metal or non-metal semiconductor materials are: ferrum,
One or more of chromium, manganese, aluminum, magnesium, copper, zinc, stannum, nickel, gold, silver and silicon combine.
6. manufacture method according to claim 1 is it is characterised in that the vacuum of vacuum coating equipment directly plated of described metal
For 1 × 10-3～1 × 10-1pa.
7. manufacture method according to claim 1 is it is characterised in that described coating materials are: novolaks, polyurethane lacquer,
One or more of acrylic lacquer, epoxy resin varnish and fluorocarbon varnish combine.
8. manufacture method according to claim 1 is it is characterised in that described pre- coating is: acrylic acid, epoxy, polyurethane,
One of polyethylene and polyester coating.
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| CN201410614210.XA CN104347944B (en) | 2014-11-05 | 2014-11-05 | Manufacturing method of metal-directly-plated RFID (radio frequency identification) electronic tag antenna |
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Families Citing this family (11)
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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 |
| 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 |
| 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 |
| 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 |
| CN108382719B (en) * | 2018-01-31 | 2019-11-12 | 成都优印佳科技有限公司 | Integral type RFID anti-fake bottle lid production method and system |
| 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 |
| 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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| US7448125B2 (en) * | 2005-02-22 | 2008-11-11 | Hanita Coatings R.C.A. Ltd | Method of producing RFID identification label |
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| CN101775758A (en) * | 2010-03-17 | 2010-07-14 | 上海绿新包装材料科技股份有限公司 | Transfer aluminum plated paper using self-adhesive paper as base paper |
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Address after: 200331 Putuo District, Shanghai Chen Road, No. 200 Patentee after: Shanghai Shun Hao new materials Polytron Technologies Inc Address before: 200331 Putuo District, Shanghai Chen Road, No. 200 Patentee before: Shanghai Luxin Evotech Packing Materials Science & Technology Co., Ltd. |