CN1545079A

CN1545079A - A method for preventing mark from repetitive using

Info

Publication number: CN1545079A
Application number: CNA2003101114815A
Authority: CN
Inventors: 曹汉强; 陈汝钧
Original assignee: Huazhong University of Science and Technology
Current assignee: Huazhong University of Science and Technology
Priority date: 2003-11-28
Filing date: 2003-11-28
Publication date: 2004-11-10

Abstract

The invention discloses a method for preventing identification from being reused, perforating with a laser to make the graphics and characters composed of these holes on the identification and the marked object, where the graphics and characters form a seal on the perforation on the interface between the identification and the marked object. The 'seal on the perforation' can prevent an anti-falsification identification from being taken off or cut off for reusing, and also the photo on a certificate from being substituted stealthily by another; in addition, has a certain anti-falsification power, difficult to counterfeit. It has a very good anti-falsification effect.

Description

A kind ofly prevent to identify reusable method

Technical field

The invention belongs to anti-counterfeiting technology, be specifically related to a kind of reusable method that prevents to identify.This method adopts laser to make the perforation seal on the perforation, is opened or cut usefulness again to prevent anti-counterfeiting mark, can prevent that also the photo on the certificate from being substituted for another surreptitiously.

Background

China's accession to WTO, global economic integration progress is accelerated day by day, international cooperation is tight day by day, forgery and illegal imitation of brand-name products is also all the more rampant, becomes the world's three big public hazards (traffic in drugs, forgery and illegal imitation of brand-name products, one of terrorist activity), not only in developing country, and in developed country, the activity of forgery and illegal imitation of brand-name products is all very rampant.

After Cold War-era finished, the U.S. dominated the whole world exclusively, and " gaining the initiative by striking first " strategy is aggressive, national conflict aggravation all over the world, terrorist activity is in vogue, and the toadstool of international terrorism spreading all over the world caused the common concern and the worry of national governments and international community.Terrorism becomes national governments and aims at the sting in one's heart that must remove, and national security is subjected to new challenge.Forging false bill and deceive money, use counterfeit passport to commute all over the world, is the means that the terrorist uses always.Therefore, terrorist activity usually be unable to do without the forgery and illegal imitation of brand-name products of identity certificate and various card card and financial document.Terrorist activity usually links together with forgery and illegal imitation of brand-name products, the generation of the U.S.'s 9.11 incidents, make the certificate false proof technology more and more be paid attention to by various countries, this just makes false proof being closely connected with national security with anti-terrorism be in the same place, thereby gives anti-counterfeiting technology significant meaning and mission more.

According to the information that People's Bank of China and the Ministry of Public Security provide, bill crime has become the object that a kind of serious economic crime banker's bill, enterprise's check and invoice wherein become the infringement of forgery and illegal imitation of brand-name products emphasis in recent years, case-involving great amount, and loss is serious.Cause economic loss to reach billions of units for every year country, enterprises and individuals.A large amount of counterfeit moneys, stamp, various securities, resident identification card, residence booklet, diploma, official seal etc. are full of society, bring great harm to social safety.

In the face of the very severe situation of domestic and international false proof situation.The state leader has repeatedly made the clearly indication of " hitting fake and forged commodity, concerning politics, concerning government's prestige, concerning country and national future ".Must strengthen the research and development of anti-counterfeiting technology, the departments concerned takes charge in unison and jointly administrate, anti-false stifled source, and the whole people are false proof, and are very urgent.Enter the nineties later stage, the anti-counterfeiting technology of China obtains unprecedented development, the scientific and technical personnel of China are after successfully having developed the antiforge laser holographic technology, developed the new anti-counterfeiting technology of many suitable China's actual conditions again in succession, for example digital information false proof, heavy ion micropore are false proof, the two card of atomic nucleus anti-counterfeiting technology, DNA anti-counterfeiting technology, biostatistics discrimination method, false proof, the various antiforge technology of seal stamp-pad ink, magnetic anti-counterfeiting technologies, or the like.Wherein antiforge laser holographic technology, information anti-fake technology, engraving gravure techniques are extensive use of in bill, security, certificate, file and numerous commodity, have formed industry size, become the mainstay industry of the false proof industry of China.

No matter be the antiforge laser holographic technology, or the information anti-fake technology, what the carrier of anti-counterfeiting information was a large amount of is to embody with the form that identifies, for example a large amount of laser holographic anti counterfeiting label and digital code anti-false identifications that use in false proof field.Anti-counterfeiting mark must have the characteristics that " disposable " uses, and must be able to prevent that the people from " grafting flowers on a tree anti-counterfeiting mark " or reclaim usefulness again, i.e. requirement can not be taken off or cut and use.But accomplish that this point is very difficult.At first be that itself can use pressure-sensitive adhesive sticker repeatedly because anti-counterfeiting mark uses pressure-sensitive adhesive sticker to paste usually.Secondly, even use other forms of viscose glue instead, can't prevent from also that the people from cutting anti-counterfeiting mark again to use.For example, stick on file, the anti-counterfeiting mark on bill, the declaration form just is easy to cut use again.

In addition, all be printed on photo on various identity documents and certificate, managing to change photo also is the gimmick that the lawless person uses always.

Summary of the invention

The object of the present invention is to provide a kind of reusable method that prevents to identify, this method can prevent to take or cut the sign of pasting off usefulness again, perhaps is used to prevent use instead on certificate photo etc.

A kind of reusable method that prevents to identify provided by the invention is characterized in that: adopt the method for laser beam perforation, make a large amount of apertures on sign and subject matter, these apertures form required picture and text on the interface of sign and subject matter.

Adopt said method making " seal on the perforation " on the interface of sign and subject matter, can prevent that anti-counterfeiting mark from being opened or cutting usefulness again, can prevent that also the photo on the certificate from being substituted for another surreptitiously.In addition, this " seal on the perforation " itself also has certain anti-counterfeiting power, is difficult for forging.The present invention can prevent the sign repeated use, and has good antifalse effect.

Description of drawings

Fig. 1 is an example schematic of laser beam perforation seal on the perforation;

Fig. 2 is for posting the synoptic diagram of making an actual operative installations of laser beam perforation seal on the perforation on the anti-counterfeiting mark bill.

Embodiment

As shown in Figure 1, post one piece anti-counterfeiting mark 13 on the bill 12, on bill and anti-counterfeiting mark, bore a hole, cut out the figure of One Earth One Family, so just on bill and anti-counterfeiting mark, formed a perforation seal on the perforation 14 with the laser beam after focusing and the shaping.

As shown in Figure 2, adopt the laser marking machine processing of boring a hole,, light the Laser Power Devices 2 of laser tube comprising laser tube 1, the circulating water cooling system 3 of laser tube and X-Y platform 4, laser tube just is placed on the X-Y platform; X-Y platform is controlled by microcomputer system, can move on X and Y both direction, so just can control laser tube according to the program motion of setting with computing machine, and the laser that laser tube is sent is depicted the picture and text that we need according to certain track.The laser 6 that laser tube sends changes direction through behind the catoptron 7, is passed down through light hole 8.Anti-counterfeiting mark 11 sticks on the bill 10, passes the laser 9 of light hole and make picture and text on sign and bill, forms seal on the perforation.On physical construction, laser tube 1, catoptron 7 and light hole 8 are an integral body, always can pass light hole 8 exactly to guarantee the laser that laser tube 1 sends in the process of drawing seal on the perforation.Change the shape of light hole, also just change the shape of cross section of the laser 9 that sees through, form also corresponding the changing of shape of the aperture of seal on the perforation.During concrete enforcement, the subject matter that should optionally bore a hole is selected suitable optical maser wavelength and laser power.As an example, when the bill paper is 38 grams-70 grams, can select the CO of 3-5mw for use ₂Laser (10.6 μ m) is bored a hole.

When concrete enforcement is of the present invention, select for use suitable laser marking machine to adopt existing drilling technology to get final product in sign and the enterprising eleven punch 11 processing of subject matter.

Claims

1, a kind ofly prevent to identify reusable method, it is characterized in that: adopt the method for laser beam perforation, make a large amount of apertures on sign and subject matter, these apertures are the required picture and text of formation on the interface of sign and subject matter.