CN1400105A

CN1400105A - Comparison type antifalse printing technique

Info

Publication number: CN1400105A
Application number: CN 01123951
Authority: CN
Inventors: 张晶; 赵莲清
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-07
Filing date: 2001-08-07
Publication date: 2003-03-05
Anticipated expiration: 2021-08-07
Also published as: CN1209249C

Abstract

The present invention belongs to the field of antifalse printing technology. Said invention adopts complete transfer technology to make characteristics clear, make reference and object protected by antifalse technique form into one body, make the key be hidden in antifalse product and make unified use so as to greatly raise antifalse performance of various antifalse characteristics and measures produced by said invention, and can easily implement machine-reading and machine-judgement. For after-signal and issued handwriting, printing content and seal, if the comparison body and reference design can be slightly changed, it can implement machine-reading and machine-judgement or after-signal and issued contents. Said invention integrates the antifalse technique and protected object into one body so as to can produce good antifalse effect.

Description

Comparison type anti-counterfeiting printing technology

The invention belongs to the anti-counterfeiting printing technology category, and relate to fields such as computer intelligence identification, chromatography, light wave conduction and chemical synthesis, relate to technique of criminal investigation and financial security, thereby the banknote that will now use China incorrect publicity of the present invention, passport etc. have a negative impact national security, particularly financial security are worked the mischief.

Comparison type anti-counterfeiting printing technology take complete transfer techniques make feature obviously, object of reference and anti-counterfeiting technology object one, the key protected be hidden in unified use in one among the anti-fake product; thereby with feature identification, relatively contrast and coding and decoding three organically combine, and have greatly improved the various anti-counterfeiting characteristics that produced by comparison type anti-counterfeiting printing technology, the anti-counterfeiting performance of means.Its basic principle is, in the one-step print process, takes to change the method for printing-ink surface chemistry or physical property, makes it tell different layers, and what combine with printing carrier is with reference to body, can be glued and what shift fully is the comparison body.The anti-counterfeit printed color that manifests be with reference to body and comparison body close look, this close look be different background such as the different transparency of at least two special looks, two above media, paper with the secondary colour of background colour.

The printed matter of comparison type anti-counterfeiting printing technology is structurally formed by ply of different nature, according to different use objects, can adopt face branch mode or line branch mode.The face branch mode is suitable for mode of printings such as gravure, flexographic plate, it is cheap, and printing equipment is not needed too much to transform, and anti-counterfeiting power is low than the line branch mode also certainly, as with some anti-counterfeiting technology and means integrated application, be subjected to the restriction of external condition.Its structure as shown in Figure 1, for realizing shifting fully, must make with reference to body and combine closely with penetration mode and printing carrier, its adhesion is definitely greater than the affinity of comparing body and isolating construction, when using general Pressure sensitive adhesive tape to post, because adhesive sticker mostly is the hydrosol, with the isolating construction of forming by the hydrophily olefin resin very strong bonding force is arranged, when therefore uncovering adhesive sticker, the comparison body that isolating construction encases on it shifts with adhesive sticker together, as long as isolating construction separates comparison body and with reference to body fully, just can realize comparing body and with reference to the transfer fully of body.The line branch mode is suitable for various mode of printings, but needs printing equipment is transformed, and adopts special algorithm for design and use special-purpose specialty inks.Compare with the face branch mode, it is less influenced by external condition when going up other anti-counterfeiting technologies and means, and anti-counterfeiting power then exceeds a lot, and price is also slightly high.Line branch mode and block printing are extremely alike, but more meticulousr and attractive in appearance than block printing, and it is constructed as shown in Figure 2.But the realization of its transfer is different with the face branch mode, comparison body and printing carrier are that infiltration combines, comparison body and then be because spacer body is a metamer with reference to the combination of body, so on contact-making surface, produced different tension force, cause with reference to body less than spacer body, spacer body is less than the situation of comparison body.When pasting with adhesive sticker, adhesive sticker has the effect that well tears off to conjunctiva with reference to body and spacer body, shifted thereby make with reference to body, because fine rule could compare on thick line, otherwise thick line might cover fine rule, directly be narrower than down the layer line footpath and go up layer line, so for the line branch mode, the upper strata is with reference to body.

For the line branch mode, patent applicant of the present invention has also designed an overlapping polychrome printing technology, for on a forme, carry out the polychrome subregion not only can be overlapping but also the print request that can be right after flat raft created condition, thereby on anti-counterfeiting printing technology, obtained another qualitative leap.The basic principle of an overlapping polychrome printing technology is seen Fig. 3, viscosity reduced when this technology mainly utilized some olefin resin temperature to raise, flowability is strengthened and be easy to transfer, the characteristics that conjunctiva solidified when temperature reduced are with its printing ink China ink base as comparison, reference and spacer body.Owing to roll to ink system and transfer inner heating is arranged all, therefore printing ink can be transferred to version easily and rolls on, version is rolled and is subjected to the China ink back under the cooling of cooling system cold air, the ink solidification conjunctiva, make the printing ink of another kind of color can continue stack thereon, make same version go up same lines and can form comparison, reference and spacer body by overlapping three layers of printing ink.Liquefaction is rolled in the transfer that three layers of overlapping printing ink run into high temperature, runs into the paper of low temperature again, transfers on the paper and curing, thereby realizes an overlapping polychrome printing.

Forgery and imitated person forge and have copied multiple means and technology, and conclusion is got up can be divided into imitated forgery, taken off to change and forge and modification forgery three classes.Comparison type anti-counterfeiting printing technology is at forging and imitated person forges and limitation when imitated, making a comparison layer on printed matter comes, this comparison layer does not manifest (promptly meet fully and unify with reference to body and comparison body) at ordinary times, but when using common adhesive sticker to be incumbent on, just can take off the picture and text of design in advance.When forging and imitated person when copy, just must make a comparison layer equally and come, and this comparison layer must and can be taken off next by adhesive sticker 100% ground with the color of being copied the same picture and text of former state, unanimity by taking off picture and text like this.In addition, forge and the imitated comparison of imitated person body, must and meet fully with reference to body, do not go out on the surface overlapping, phenomenons such as dislocation.Because the comparison body can be taken off away fully by adhesive sticker, therefore forge and when imitated, not only to make comparison body and with reference to the body solid colour, also will make can be corresponding one by one than element on the line of comparison on the body, line, type etc. and the reference body, take place if any overlapping and inconsistent phenomenon, will make the original comparison body that does not manifest and manifesting of certain form occur, to such an extent as to its forgery and imitated attempt are found with reference to body.Because comparison type anti-counterfeiting printing technology is to use same forme to print the comparison body and with reference to body, therefore can think and have only change in color and do not have the variation of position, and forgery and imitated person print the forme of genuine piece and do not have special printing ink in a not grasp complete set, and when printing equipment not being transformed, be impossible forge and copy to the printed matter of comparison type anti-counterfeiting printing technology.

The comparison layer of comparison type anti-counterfeiting printing technology can be transferred on the adhesive sticker when adhesive sticker is pasted fully.Change forgery for taking off, can't take off out on former printing carrier with reference to body, the comparison layer can't be compared separately, and will compare with the reference body, have only and paste back former printing carrier again, so comparison type anti-counterfeiting printing technology is can prevent from fully to take off to change forgery.Why take off on passport, paster visa, trade mark at present that to change forgery very rampant, and extremely difficultly find that its main cause is that false proof measure and means are made on the safety diaphragm, the thing that sticks is certainly taken off and is attached to other places again.Comparison type anti-counterfeiting printing technology with reference to body and the comparison body accomplish on the different carriers, in fact fundamentally make take off change the forgery unworkable.Forge for revising, the adulterator must uncover adhesive sticker and can forge, and comparison type anti-counterfeiting printing technology is when uncovering multiple film again, the one, can shift, the 2nd, when pasting and go back (revise forge finish after) after film is uncovered again, color on the film, variation has all taken place in the position, let alone entering of air, the adding of new gluing (when comparison type anti-counterfeiting printing technology is uncovered adhesive sticker again, has been lost its original viscosity, thereby has been pasted and go back, need new gluing), must make the comparison body and change with reference to body, this variation is can be found, revises the attempt of forging thereby exposed.But can only find at present to be modified, how revise and also be difficult to judge.Comparison type anti-counterfeiting printing technology by write to machine, machine-readable, machine is declared with the machine tube side to development, will address this problem.

Comparison type anti-counterfeiting printing technology is sayed from himself, the realization machine is declared not so difficult with reference to body and one comparison body to have had one, if read with reference to body and compare whether body separates, overlapping, variable color and displacement, it is true meeting with the comparison body with reference to body, and it is false not meeting.Its level just as identify the handwriting and the use file tester of printing word is tested; Its use equipment is very simple, gets final product with the plain scan instrument; By improvement, can use same software and hardware to differentiate to multiple anti-counterfeiting mark to software.

Comparison type anti-counterfeiting printing technology concerning after person's handwriting, print content and the seal signed and issued; because the content of signing and issuing after these is to be clipped between film and the carrier; the method that not only can pass through pad pasting is in advance with protection; and the comparison body can also be transferred on the film; so as long as to the comparison body with transform a little with reference to the design of body, just can realize to after sign and issue content machine-readable, machine declare.Can carry out machine-readable to anti-counterfeiting technology; machine is write; machine is declared and the machine pipe; can discern and use the content of being protected again; so just anti-counterfeiting technology and protected object molten be one; make not possess originally and sign and issue content after anti-fraud functional; also possessed antiforge function; certainly also make anti-counterfeiting technology reach a new level; thereby make the anti-counterfeiting technology of passive simple " preventing "; become can with protected content also " usefulness "; can be further developed into anti-counterfeiting technology again to forgery and imitated person's attack; reach finally that greatly to control with the fake and forged commodity be the crime of means, allow the false proof passive situation of thoroughly breaking away from " the high chi in road; evil spirit is high a zhang ".

Comparison type anti-counterfeiting printing technology can be used in combination with nearly all false proof means, therefore can be used as the platform of various false proof means, and and existing anti-counterfeiting printing technology compare, its precision is higher, more tolerant to the environmental requirement condition, this combination certainly leads to better antifalse effect.Comparison type anti-counterfeiting printing technology and existing anti-counterfeiting printing technology, particularly note-printing technique is compared, provide many new engineering feasibilities and false proof means to realize technology, this is to open up new anti-counterfeiting technology and other new and high technologies of grafting to be used for false proof field and to lay a good foundation.Block printing and letterset have had one-hundred-year history, though remain the main force of anti-counterfeit printing so far, but can predict, comparison type anti-counterfeiting printing technology is one to replace surely and become the anti-counterfeit printing mainstream technology in future, and false proof level is reached a new high. ¹Can use adhesive sticker special or that be added with false proof means, but the applicant thinks, use common adhesive sticker just can reach needed anti-counterfeiting power.

Claims

1. comparison type anti-counterfeiting printing technology takes to change the method for printing-ink surface chemistry or physical property; it is told and combine immovable fixed bed and coincideing with the fixed bed lines but the mobile layer that can shift fully of printing carrier, thus make feature obviously, object of reference and anti-counterfeiting technology object one, the key protected be hidden in unified use in one among the anti-fake product.

2. the face branch mode that demixing technology according to claim 1 derives from, make with reference to body and combine closely with penetration mode and printing carrier, its adhesion is definitely greater than the affinity of comparing body and isolating construction, when using general Pressure sensitive adhesive tape to post, because adhesive sticker mostly is the hydrosol, with the isolating construction of forming by the hydrophily olefin resin very strong bonding force is arranged, when therefore uncovering adhesive sticker, the comparison body that isolating construction encases on it shifts with adhesive sticker together, as long as isolating construction separates comparison body and with reference to body fully, just can realize comparing body and with reference to the transfer fully of body.This mode is suitable for printing processes such as gravure, flexographic plate, wire mark.

3. the line branch mode that demixing technology according to claim 1 derives from, the comparison body is combined with the printing carrier infiltration, comparison body and then be because spacer body is a metamer with reference to the combination of body, therefore on contact-making surface, produced different tension force, cause with reference to body less than spacer body, spacer body is less than the situation of comparison body.When pasting with adhesive sticker, adhesive sticker has the effect that well tears off to conjunctiva with reference to body and spacer body, is shifted thereby make with reference to body.This mode is suitable for various printing processes, but needs printing equipment is transformed, and adopts special algorithm for design and use special-purpose specialty inks.

4. the described demixing technology of claim 1 makes forgery and imitated person the forgery and imitated can being penetrated that are not possessing under the corresponding conditions by relatively contrasting, comparison layer on the printed matter does not manifest (promptly meet fully and unify with reference to body and comparison body) at ordinary times, but when using common adhesive sticker to be incumbent on, make with reference to body and separate and take off out in advance the picture and text of design with the comparison body, color also changes simultaneously.

5. the described comparison recognition methods of claim 4 in actual use, is the mixing of two special looks at least.It closes color error and presents expansion trend, separating also can appear in complementary color, because human eye is the reflection of colour stimulus ophthalmic nerve to the cognition of color, therefore as there being the comparison of color, a glance just can be found out difference, so under the data conditions of not knowing to match colors, under the level of getting the look instrument and equipment at present, can not forge and copy ratio and check colors with the same color that conforms to reference layer.

6. the described printing ink of claim 2 with different binding characteristics, its chemical formulation and technology.

7. the described printing ink of claim 3, its chemical formulation and skill down with differential tension characteristic.

8. the described comparison recognition methods of claim 4 can be corresponding one by one than element on the line of comparison on the body, line, type etc. and the reference body by making, and takes place as overlapping and inconsistent phenomenon, and forgery and imitated attempt will be found.

9. form by ply of different nature on the implementation structure, viscosity reduces when utilizing some olefin resin temperature to raise, flowability is strengthened and be easy to transfer, the characteristics that conjunctiva solidified when temperature reduced, implement inner heating to rolling for ink system and transfer, make printing ink can transfer to version easily and roll on, version is rolled and is subjected to the China ink back under the cooling of cooling system cold air, the ink solidification conjunctiva, make the printing ink of another kind of color can continue stack thereon, making same version go up same lines can be repeatedly overlapping.Overlapping printing ink runs into the transfer of high temperature and rolls liquefaction, runs into the paper of low temperature again, transfers on the paper and curing, realizes an overlapping polychrome printing.

10. realize claim 9 and, comprise transformation offset printing, flexographic plate, gravure, protruding seal and wire mark equipment to the transformation of printing equipment.

11. realize the technology of claim 9, comprise different process to offset printing, flexographic plate, gravure, protruding seal and wire mark.

12. read with reference to body whether separate with the comparison body, overlapping, variable color and displacement, it is true meeting with reference to body and comparison body, it is false not meeting.Thereby realize to anti-fake product carry out machine-readable, machine is write, machine is declared and the machine pipe.

13. comparison type anti-counterfeiting printing technology can be used in combination with nearly all false proof means, therefore can be used as the platform of various false proof means, and and existing anti-counterfeiting printing technology compare, its precision is higher, more tolerant to the environmental requirement condition, this combination certainly leads to better antifalse effect.