[background technology]
Radio-frequency (RF) identification (RFID, Radio Frequency Identification) is to utilize radiofrequency signal to carry out the non-contact automatic identification technology of bidirectional transfer of information by the space coupling.Usually, RFID label
At present, the RFID electronic label antenna is made and is mainly realized by burn into silk-screen, flexo or offset printing mode, and it is made limitation and has determined the RFID electronic tag mainly existing in market by label form.Remove cost factor, because label is difficult to combine together with package design is organic after pasting, hindered it in packing, the particularly application in medicine box or the false proof field of luxurious ornaments.
Current, gilding technology is very ripe, and the substandard products generation rate is lower, is suitable for bulk production production.Picture and text by electrochemical aluminium thermoprinting formation are bright in luster, weatherability is good, has good decoration effect, are used widely.If thermoprint technology and RFID electronic label antenna correlation technique can be combined, will widen the application of RFID greatly, simplify its manufacture craft.
The electrification aluminum is rhythmo structure, is made of base membrane layer and the peel ply, chromatograph, aluminium coated and the adhesive layer that are coated on the base membrane layer.Because chromatograph and peel ply material commonly used at present are the resin material that lacks electric conductivity, therefore, existing electrochemical aluminium does not generally possess conductive features.This defective has hindered electrochemical aluminum in the application of electronics industry.
Therefore, develop a kind of can be in conjunction with the RFID electronic label antenna method for making of electrochemical aluminium thermoprinting technology, for the development of anti-counterfeiting technology with significant.
[summary of the invention]
The technical problem to be solved in the present invention is the electrochemical aluminium thermoprinting technology is combined with the RFID electronic label antenna, develops a kind of technology of making the RFID electronic label antenna by thermoprint.
The invention provides a kind of method for making of RFID electronic label antenna, comprising: electrochemical aluminium is conducted electricity in thermoprint on printed matter surface; Bonding RFID chip; And in the glue protection of RFID chip surface, wherein
The electrochemical aluminium of described conduction comprises base membrane layer, peel ply, aluminium coated and the adhesive layer that stacks gradually, and described peel ply is made of first conductive material.
Described method can also comprise that thermoprint conducts electricity before the electrochemical aluminium, overlay film or the step of oil excessively on printed matter surface.
Described first conductive material can be the potpourri of celluosic resin mould release with conduction liquid, and described conduction liquid can be the conduction liquid compatible with described celluosic resin mould release.
The weight ratio of described celluosic resin mould release and described conduction liquid can be 1: 1
The electrochemical aluminium of described conduction can also be included in the chromatograph between peel ply and the aluminium coated, and described chromatograph is made of second conductive material.
Described second conductive material can be the potpourri of acryl resin, dyestuff, conduction liquid, and described conduction liquid can be the conduction liquid compatible with described dyestuff with described celluosic resin mould release, described acryl resin.
The weight ratio of described acryl resin, described dyestuff, described conduction liquid can be 3: 2: 4
The thickness of described aluminium coated can be 0.05um.
The invention still further relates to the RFID electronic label antenna that obtains by above method for making.
The invention still further relates to the application of RFID electronic label antenna in medical packaging, luxurious ornaments packing that makes.
Make the RFID electronic label antenna by hot stamping method and have plurality of advantages: compare with the flexo antenna, the printed sheet area is not limited, and the technology scope of application significantly increases; Compare with the silk-screen antenna, automatic gold stamping equipment work efficiency is higher than screen printing device, omits drying procedure, and is energy-conservation relatively; Compare with the offset printing antenna, the hot stamping process one-shot forming does not influence follow-up presswork to the arrangement of printing unit; Compare with etching antenna, production efficiency significantly reduces, and does not have liquid contamination.
[embodiment]
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
The process flow diagram of Fig. 1 illustrates the method for making according to RFID electronic label antenna of the present invention.As seen from the figure, the present invention's method of making the RFID electronic label antenna is mainly finished by thermoprint.Electrochemical aluminium is conducted electricity in thermoprint on printed matter, and bonding RFID chip thereon subsequently.Because the RFID chip is positioned at the top layer of paper, friction causes chip to come off easily, therefore, also need do at chip surface after the hot pressing and drip glue and handle, so that chip is protected.
Because the peel ply of the electrochemical aluminium of conduction of the present invention is made by conductive material, the paper surface after the thermoprint possesses conductive features; When having chromatograph, this chromatograph is also made by the material with conductive characteristic.Therefore make it possible to prepare the RFID electronic label antenna by electrochemical aluminium thermoprinting technology.
Before electrochemical aluminium is conducted electricity in thermoprint, can also carry out overlay film or cross oil processing printed matter, with the optimization press quality, or give printing packaging with other peculiar properties.In addition, dripping after a glue protection step finishes, also can be to his surface treatment operations of the enterprising stepping Xingqi of printed matter.
Afterwards, and can carry out conventional printing packaging technology, for example cross cutting, sticking box etc.Perhaps can also increase the detection to the RFID label, to reject waste product.Finally, after the packing of product is finished, the RFID electronic label antenna information of carrying out is write, thereby be used for market circulation.
It should be noted that in the operating process of concerned process steps, should avoid RFID chip part as far as possible, it is damaged avoiding.
The RFID electronic label antenna that the method according to this invention thermoprint obtains is attached directly to the paper material surface and combines together with it, and can be covered the antenna part print color as the case may be, realize concealed anti-false, broken through the limitation that label uses on the packaging.In addition, can also design the antenna hot stamping pattern that matches with it in conjunction with packing of product design style, realize that the anti-fraud functional while of RFID farthest increases the decoration functions of antenna.Perhaps at the product external packaging of different-style can select the to be complementary conduction electrification aluminium of metallochrome, break through the limitation of the single color and luster of existing printing conductive silver slurry.
The vacuum plating aluminum layer thickness is even, and aluminium ion is arranged balanced, makes that the RFID electronic label antenna edge after the thermoprint is smooth smooth, and is anti-resistive constant.Thereby can stably receive and dispatch electromagnetic information, rejection rate is low.
Fig. 2 and Fig. 3 be schematically illustrated conduction electrification aluminum structure of making the RFID electronic label antenna for the method according to this invention respectively.
As can be seen from Fig. 2, conducting electricity electrochemical aluminium comprises base membrane layer, peel ply, aluminium coated and the adhesive layer that stacks gradually.Wherein base membrane layer, aluminium coated, adhesive layer all can be similar to common electrochemical aluminium.For example base membrane layer can be the PET polyester layer; The thickness of aluminium coated is 0.05um; Adhesive layer can be made of meltable thermoplastic resin.
In the electrochemical aluminium of conduction of the present invention, peel ply has adopted first conductive material with electric conductivity, and this first conductive material can be the potpourri of celluosic resin mould release (for example the release resin of EC-668 of new material Science and Technology Ltd. is speeded to cherish in Shanghai) and conduction liquid (for example XH-001 conduction liquid of Shenzhen's letter and long-term plan electronic packaging Materials Co., Ltd).Conduction liquid is compatible with the celluosic resin mould release; Both proportionings are 1: 1, should be understood that the amount of celluosic resin mould release is more many, and then the peel ply electric conductivity of Huo Deing is more poor; The amount of phase opposite conduction liquid is more many, and then the peel ply electric conductivity of Huo Deing is more good.
The present invention is by simply mixing the celluosic resin mould release with conduction liquid, prepared first conductive material that possesses electric conductivity and fissility simultaneously, with the peel ply in the electrochemical aluminium of its preparation conduction, in the time of can making electrochemical aluminium on being transferred to carrier, be exposed to outermost peel ply and possess conduction property, it is next-door neighbour's aluminium coated down.
To carrier, adhesive layer sticks on the carrier surface, is followed successively by adhesive layer, aluminium coated and peel ply from bottom to top by thermoprint.The material of this peel ply can also protect aluminium coated not oxidized when possessing electric conductivity, thereby compared with prior art, can save chromatograph, has further simplified technology, has reduced cost.Owing to possess conductive features, just can being used in the thermoprint of RFID antenna of electrochemical aluminum.Utilize such conduction electrification aluminium, the hot stamping process by maturation replaces etch process commonly used in the present electronics industry, can significantly reduce pollution, reduces cost, raise the efficiency, and has huge market potential.
Fig. 3 illustrates the structural representation that has the conduction electrification aluminium of chromatograph according to another embodiment of the present invention.Owing to comprise chromatograph, the electrochemical aluminum with different color can be provided.
This conducts electricity in the electrochemical aluminium, and peel ply and chromatograph all have conductive characteristic.Peel ply can be as indicated above, is made of first conductive material.Chromatograph with electric conductivity can be made of second conductive material, and this second conductive material can be the potpourri of acryl resin (for example Degalan VP1034F acryl resin of the permanent diligent scientific ﹠ trading Co., Ltd. of Wuxi City), dyestuff (for example Dongguan City China becomes the HC-PET388 coating of new material company limited) and conduction liquid (the XH-001 conduction liquid of Shenzhen's letter and long-term plan electronic packaging Materials Co., Ltd).
Dyestuff can be selected the suitable dyestuff of various colors for use, for example colour-wash etc.; Conduction liquid is same compatible with dyestuff with acryl resin, and the proportioning between the three is 3: 2: 4.Wherein, acryl resin plays filming function, and its amount is more many, and then film-formation result is more good; Dyestuff can provide different color, and the selection of its amount can be carried out as required; Conduction liquid is used for electric conductivity is provided, and its consumption is more big, and then electric conductivity is more good.
Among the present invention, second conductive material also can prepare by simple mixing acryl resin, dyestuff, conduction liquid.Use second conductive material coating chromatograph operation can with the coating class of chromatograph in the common electrochemical aluminium seemingly, namely the electrochemical aluminium of conduction of the present invention can use the maturation process in the electrochemical aluminium production field to make.For example adopt coating machine to be coated with peel ply at base membrane layer; Vacuum aluminum-coated on peel ply afterwards, form the thick aluminium coated of 0.05um; Be coated with adhesive layer at aluminium coated subsequently, the final electrochemical aluminium of conduction that forms.Perhaps when using chromatograph; Adopt coating machine to be coated with peel ply at base membrane layer; Be coated with chromatograph at peel ply afterwards; Vacuum aluminum-coated on chromatograph, form the thick aluminium coated of 0.05um; And be coated with adhesive layer at aluminium coated, the final conduction electrification aluminium that has chromatograph that forms.
The conduction that obtains thus electrification aluminium by thermoprint to carrier, be followed successively by adhesive layer, aluminium coated, chromatograph and peel ply from bottom to top.Because peel ply and chromatograph on the aluminium coated are made by conductive material, thereby have obtained possessing the electrochemical aluminum of conductive characteristic.The conduction electrification aluminium that obtains not only possesses electric conductivity, can also be by regulating the color of chromatograph, and obtain the shades of colour effect, and form various patterns, further promote the functional and practicality of the electrochemical aluminium of conduction.
To sum up, utilization of the present invention has the conduction electrification aluminium of conductive features, prints the RFID label antenna by the thermoprint mode, thereby is introduced into medical packaging and luxury goods packaging field.Along with the further maturation of chip manufacturing technology and the formation of competitive environment, the outstanding antifalse effect of RFID electronic tag makes it will have broad application prospects in medical packaging, luxury goods packing and even other field.
The above the specific embodiment of the present invention does not constitute the restriction to protection domain of the present invention.Various other corresponding changes and distortion that any technical conceive according to the present invention has been done all should be included in the protection domain of claim of the present invention.