CN1122955C

CN1122955C - Composite optical anti-forging label

Info

Publication number: CN1122955C
Application number: CN96122553A
Authority: CN
Inventors: 陈旃
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-12
Filing date: 1996-10-12
Publication date: 2003-10-01
Anticipated expiration: 2016-10-12
Also published as: CN1179585A

Abstract

The present invention relates to a composite optical anti-counterfeiting printed label which is a novel signet type anti-counterfeiting label. The present invention is formed by combining and splicing two different grating structures of a holographic label and a magic grain label together by a spliced edition compounding method, so the present invention not only has holographic figures easily identified and memorized by public but also has the characteristic of reliable and anti-counterfeiting magic grains directly identified by naked eyes of the public; furthermore, the present invention can have the credit function to replace signet operation and can also be widely used for other various anti-counterfeiting places.

Description

Composite optical anti-forging Zhanghe anti-false sign

The present invention is a kind of novel security stamp and anti-false sign.

By seal and the trace that die and ink paste (or printing China ink, stamp-pad ink) are formed, be Chinese's anti-counterfeiting technology and anti-false signs of trusting function that have with regard to having invented before 3,000 years.Nowadays, this ancient seal form and anti-counterfeiting technology have been difficult to play effectively false proof effect.Especially those official seals that acquire a special sense and be worth owing to be difficult to block illegal forgery, can become the instrument of offender so as to crime on the contrary.

Under computer control, adopt advanced processing technology and material can make the very meticulous new stamp of groove, yet this seal but can be more imitated with same technological means by others, and this novel falsification of seal will allow the people be difficult to differentiate and identification more; The seal China ink that use has a property can improve the anti-counterfeit capability of seal effectively, but this only is only under the situation that holds in close confidence and control effectively, be not easy to accomplish very much and want that the Yin Mo that large-scale popularization is used is carried out strict maintaining secrecy and control, in case the diffusion of extraordinary seal China ink is run off, utilize the false proof reliability of extraordinary seal China ink also just to reduce.Therefore, for improving the anti-counterfeit capability of seal, the appearance of new seal form presses for.

Except that seal, it is not high that other many anti-counterfeiting technologies that people adopt often also all exist reliability equally, is forged counterfeit problem easily.Laser hologram sign for example though technical difficulty is bigger, is difficult to block and has going together of same technical merit and means and copy.

The dual random decorative pattern with multiple transform effect that forms and be recorded on the optical surface under artificial uncontrollable factor effect is called unreal line.People can be with the naked eye from a different perspective to the mutual conversion of two kinds of decorative patterns, and every kind of decorative pattern also has continuous negative and positive and changes.This unreal line feature is natural formation as everyone fingerprint, and the exclusivity of the feature that possesses skills manually can not be copied separately.People can print out the anti-fake product with same unreal line feature by plate-making in batches as the seal hologram, this product has reliable anti-counterfeit capability.But, because unreal line feature is some decorative patterns at random, the public has certain difficulty when recognition memory, thereby is not easy to the large-scale popularization use.

Purpose of the present invention, be the property easy to identify of comprehensive utilization holographic label and the reliable anti-counterfeit capability of unreal pattern marker, create and a kind ofly both be convenient to the public and intuitively discern, has application value widely, the antifalse sign that has reliable anti-counterfeit capability again, this anti-false sign can representative organ unit or individual, and have the function of trusting and use to replace seal, be a kind of new seal form of suitable modern needs with reliable anti-counterfeit capability; This anti-false sign can also be used for the reliable false proof occasion of other various needs with going up other recognition feature.

It is compound that the present invention adopts methods such as hot pressing cast to carry out layout, passing through of utilizing that technology such as laser hologram or calculation holographic make through the photoetching holographic version that diffraction of light can demonstrate seal picture and text or other sign picture and text and formation under unartificial controllable factor effect and be recorded in the changeable unreal version of decorative pattern at random (being unreal line version) on optical medium surface, combined and spliced on same plasticity optical medium surface, the common anti-false sign forme of forming a composite optical anti-forging chapter sign forme or other purposes, be that mother matrix is made working version with this compound forme again, utilize to print the block press and the membraneous material of holographic label, just can print the seal mark with same picture and text feature and unreal line anti-counterfeiting characteristic or the anti-false sign of other purposes in batches.

Can realize the technical foundation of this technical scheme, be that holographic label forme and unreal pattern marker forme all have the microcosmic grating relief, and only owing to the method difference that forms, the cross sectional shape of the microcosmic grating relief that is had separately is also inequality.The holographic grating embossment of the energy displayed map literal shape that is formed by photoetching process generally has step shape, trapezoidal or sinusoidal and zigzag cross sectional shape, and incisure density is generally between 600 to 2000 every millimeter.The multiple change of the energy demonstration unreal line grating relief cross sectional shape of decorative pattern at random then is irregular, does not have common mode standard, neither step shape and trapezoidal, neither serrate and sinusoidal.Its line density is generally between every millimeter 100 to 1500.Therefore, the optical anti-forging Zhanghe sign that is printed off by this compound version is the optical articles that has above-mentioned two types of cross sectional shape microcosmic grating reliefs simultaneously.As holographic label, the base material of this product is a plastic sheeting, or is compounded with the paper of plastic foil (or resin, glue etc.).For increasing diffraction intensity, also be coated with one deck reflective metal film or deielectric-coating as thin as a wafer usually on the grating relief surface.And, for anti-duplicating adopted disposable composite membrane.

The composite optical anti-forging Zhanghe that is produced by such scheme indicates, both had the such picture and text font of holographic label, can conclusively show the individual of unit or the name of product of its representative, be convenient to people's identification directly perceived, have again and can make counterfeit adulterator's attempt be difficult to succeed equally for the public's reliable unreal line anti-counterfeiting characteristic of Direct Recognition with the naked eye.This advantage is that existing seal and anti-fake product are not available.Therefore, this compound security stamp and sign not only can replace seal to be used for the reliable false proof use occasion of requirement, for example customs, bank, contract with chapter, finance with chapter etc., but also can be used for other various false proof occasions, for example banknote, invoice, check, credit card, treasury stock, check mark, authentication marks, permission flag, anti-false sign of various important certificates, license, passport, customs document and extensive stock or the like.

Embodiment: utilize the method and apparatus of printing holographic label earlier, the grating relief that will have hologram information from the photoetching hectograph transfer printing on the thermoplastics plate, the unreal line feature of utilizing similar gold stamping method to choose is again made the suitable position of metallograph thermoprint hologram on plastic plate, just can obtain not only having hologram but also having the plastic printing plate of unreal line feature of a compound layout, make the metallic nickel version through electroforming again, just can utilize block press to print the anti-false sign of composite optical anti-forging chapter sign and other purposes in batches.

Claims

1. optical anti-counterfeiting seal, it is characterized in that with plastic foil or the paper that is compounded with plastic foil be base material, there is and the microcosmic grating relief layer that forms, comprise two parts dissimilar cross sectional shapes compound through layout on the surface: a part is the holographic grating embossment that can demonstrate the seal picture and text, its cross sectional shape is step change type, trapezoidal, sinusoidal pattern or sawtooth pattern substantially, and incisure density is between every millimeter 600 to 2000; Another part is to show the multiple change effect unreal line grating relief of decorative pattern at random, incisure density is between every millimeter 100 to 1500, and its cross sectional shape is random, does not have common mode standard, neither step change type and trapezoidal neither sawtooth pattern and sinusoidal pattern.

2. optical anti-counterfeiting sign, it is characterized in that with plastic foil or the paper that is compounded with plastic foil be base material, there is and the microcosmic grating relief layer that forms, comprise two parts dissimilar cross sectional shapes compound through layout on the surface: a part is the holographic grating embossment that can demonstrate special anti-counterfeiting sign picture and text, its cross sectional shape is step change type, trapezoidal, sinusoidal pattern or sawtooth pattern substantially, and incisure density is between every millimeter 600 to 2000; Another part is to show the multiple change effect unreal line grating relief of decorative pattern at random, incisure density is between every millimeter 100 to 1500, and its cross sectional shape is random, does not have common mode standard, neither step change type and trapezoidal neither sawtooth pattern and sinusoidal pattern.

3. by the described optical anti-counterfeiting seal of claim 1, it is characterized in that making compound master together and being undertaken holographic version and unreal line version are combined and spliced by hot pressing or pouring procedure.

4. by the described optical anti-counterfeiting sign of claim 2, it is characterized in that making compound master together and being undertaken holographic version and unreal line version are combined and spliced by hot pressing or pouring procedure.