CN1041185C

CN1041185C - Printing process of anti-forgery mark

Info

Publication number: CN1041185C
Application number: CN95103661A
Authority: CN
Inventors: 李明智; 张志光; 董轶望
Original assignee: Gede Anti-Fake Tech Co Nankai Univ
Current assignee: Gede Anti-Fake Tech Co Nankai Univ
Priority date: 1995-04-07
Filing date: 1995-04-07
Publication date: 1998-12-16
Anticipated expiration: 2015-04-07
Also published as: CN1132696A

Abstract

The present invention belongs to a method for printing anti-counterfeit marks on different printed matter, such as bonds, brand labels, etc., which has the step that special hidden fluorescent ink is positioned and printed on a laser hologram by an ordinary printing device. The encrypted laser holographic anti-counterfeit mark printed by the method greatly enhances the anti-counterfeit security level and lowers the possibility of imitating the anti-counterfeit mark. The delomorphic laser hologram is hard to imitate, and the invisible fluorescence picture and /or codes are presented obviously under the irradiation of ultraviolet rays, so that whether an article is true or false can be identified rapidly and accurately.

Description

A kind of printing method of anti-counterfeiting mark

The present invention relates to the typography method of different printing product such as security, certificate, bill, Commercial goods labels and commodity packaging.

The existing printing method that is used for the anti-fake mark on the different printing product such as security, certificate, bill, Commercial goods labels and commodity packaging mainly contains, the fluorescent anti-counterfeiting mark of printing with fluorescent ink is (as the fluorescent anti-counterfeiting mark in 100 yuan of Renminbi and the 50 yuan of nineteen ninety versions, JP03,166,276, EP211,754, EP256,922) and the laser hologram anti-counterfeiting mark (CN2151005 that prints with holography, GK88100699, GG886208320).Simple fluorescent anti-counterfeiting mark, its concealed fluorescent picture and text and coded portion (only just showing one's color under the ultraviolet ray irradiation) of printing with fluorescent ink is very difficult by imitated, is deceived consumer and the user who does not use ultraviolet check tag but its picture and text part of printing with common ink of showing one's color then copies easily.Though the manufacture difficulty of laser hologram is very big, be difficult to be copied easily, owing to make the equipment of laser hologram in recent years easy situation is arranged, so laser holographic anti counterfeiting label itself is just occured now and then also by counterfeit phenomenon.There is the people that laser hologram has been taked encryption measures for this reason,, utilizes the fourier transform property of lens to carry out (" laser magazine ", 1993.14 (4), 176 such as holographic encryption anti-counterfeiting as in hologram, adopting the novel phase coding of band cosine face; " photoelectric project ", 1991.18 (1), 21; 1992.19 (5), 38).Though the holography encryption figure of these types is difficult to copy, concerning general user and consumer identification get up very difficult, so antifalse effect is also undesirable.

The purpose of this invention is to provide a kind of both extremely difficult copying, again the method for making of the fluorescence encryption laser holographic anti counterfeiting label of rapid easily accurately identification.

Task of the present invention is achieved in that at first the picture and text with customer requirements are printed to the laser hologram map logo with known holography, adopt special-purpose concealed fluorescent printing ink then, the invisible graph of customer requirements and/or coding are imprinted on the laser holograph and are printed to fluorescence encryption laser hologram anti-counterfeiting mark with general printing equipment.

The special-purpose concealed fluorescent printing ink that the present invention adopts is to be made through mixed grinding by 100: 100～300: 10～30: 0～10 macromolecule resin, organic solvent, organic fluorescent compounds and auxiliary agent.Wherein macromolecule resin is commercially available printing ink polyamide, urethane resin, cellulose nitrate and fiber derivative, vibrin, vinyl resins, and above-mentioned resin can use or mix use separately; Organic solvent comprises alcohols solvent (as methyl alcohol, ethanol, butanols), esters solvent (as ethyl acetate), aromatic hydrocarbon solvent (as benzene,toluene,xylene), ketone flux (as acetone, butanone), and above-mentioned solvent can use or mix use separately; Organic fluorescent compounds is for using Eu ³⁺And/or Sm ³⁺Complex or bright B of Luo Da or the fluorescer of forming with TTA and/or trifluoroacetylacetone (TFA) and/or Hexafluoro acetone and/or diphenylguanidine and/or triphenyl phosphorous oxide and/or trioctylphosphine oxide and/or HEDTA and/or EDTA and/or diphenyl-methane and/or two ethane and/or 2-naphthoyltrifluoroacetone or use Ga ³⁺And/or Sc ³⁺With the amino complex of forming of HNT and/or salicylidene or use Ga ³⁺And/or Al ³⁺And/or In ³⁺The complex of forming with azo dyes (as fluorescence gallium or dodecyl fluorescence gallium) or use Al ³⁺And/or Ga ³⁺And/or In ³⁺And/or La ³⁺And/or Y ³⁺And/or the complex formed of dysprosium ion and/or terbium ion and morin and/or quinoline (as oxine or 8-quinoline mercaptan or 5,7-two fluoro-oxines) and/or Luo Daming dyestuff (as the bright 4G of Luo Da) and/or 4-sulfo group phenyl-2-methyl-pyrazolone-5; Auxiliary agent comprises that commercially available printing ink removes light dose or surfactant.

Compared with prior art the invention has the advantages that: the inventive method has overcome general fluorescent ink is difficult to carry out chromatography on laser hologram difficulty, with the fluorescence falsification preventing technology and the antiforge laser holographic technology is ingenious organically combines, both overcome the easily imitated weakness of pattern of showing one's color of simple fluorescent anti-counterfeiting mark, overcome simple laser hologram encryption identification general user and consumer again and be difficult for the accurately weakness of identification, thereby improved the level of confidentiality degree of anti-counterfeiting mark greatly.The picture and text of showing one's color that fluorescence is encrypted laser holographic mark are laser holograms, imitated difficulty is very big, user and consumer can further test out concealed fluorescent picture and text and/or the coding in the sign again significantly with the rapid convenience of general commercially available checking banknote via ultraviolet light device, thereby judge the true and false of commodity exactly.Because the supply of special-purpose concealed fluorescent printing ink is strictly controlled by relevant department, so fluorescence encryption laser holographic anti counterfeiting label is very little by imitated possibility, and antifalsification is strong.

Embodiment 1.

Printing ink vibrin (A) with Xinhua Resin Factory, Shanghai's production, 1: 1 mixed flux of ethyl acetate and ethanol (B), fluorescer BR (C) for raw material in A: B: C=100: 150: 15 ratio is made special-purpose invisible printing ink (Y1) with general printing ink preparation technology (mixed grinding).Y1 is printed in advance by promptly making blue look fluorescence on the printed laser hologram of customer requirements by plastic printer location encrypts laser holographic anti counterfeiting label.This is identified at ultraviolet ray irradiation stealthy down blue look fluorescence picture and text and/or coding and just displays significantly.

Embodiment 2.

The copolymer resins that aggregates into commercially available polyamide with by 15% vinyl chloride and 85% vinylidene chloride is by fitting in hybrid resin (A), the mixed solvent (B) of benzene and ethanol (2: 1), Eu at 0.5: 1 ³⁺Cooperate organic fluorescent compounds (C) with TTA and diphenylguanidine are formed, with above-mentioned raw materials in A: B: C=100: 200: 10 ratio is made special-purpose invisible printing ink (Y2) with general printing ink manufacturing process (mixed grinding).Y2 is imprinted in advance by plastic printer location promptly makes red fluorescence on the laser hologram that makes by customer requirements and encrypt laser holographic anti counterfeiting label.This being identified under the ultraviolet ray irradiation, stealthy red fluorescence picture and text and/or coding promptly display significantly.

Embodiment 3.

With the macromolecule resin (A) of 62% vinyl chloride and 38% vinyl acetate copolymerization, butanone flux (B), Ga ³⁺The light agent aid of producing with the complex (C) of fluorescence gallium and Tianjin printing ink company (D) of removing be a raw material, and by 100: 100: 20: 2 cooperations are then made special-purpose invisible printing ink (Y3) with general printing ink preparation technology (mixed grinding).Y3 is imprinted in advance by screen process press location promptly makes yellow fluorescence on the laser hologram that produces by customer requirements and encrypt laser holographic anti counterfeiting label.This is identified at the ultraviolet ray irradiation down, and stealthy yellow picture and text and/or coding display immediately significantly.

Claims

1. the printing method of an anti-counterfeiting mark, picture and text are printed to the laser hologram map logo with holography, it is characterized in that: adopt again by macromolecule resin: organic solvent: organic fluorescent compounds: auxiliary agent=100: 100～300: 10～30: 0～10, the concealed fluorescent printing ink of making through mixed grinding, invisible graph and/or coding be imprinted on the laser holograph and be printed to fluorescence and encrypt the laser hologram anti-counterfeiting mark, wherein macromolecule resin is the printing ink polyamide, urethane resin, cellulose nitrate and fiber derivative, vibrin, vinyl resins, above-mentioned resin can use or mix use separately; Organic solvent comprises alcohols solvent, esters solvent, aromatic hydrocarbon solvent, ketones solvent, and above-mentioned solvent can use or mix use separately; Organic fluorescent compounds is for using Eu ³⁺And/or Sm ³⁺The complex of forming with TTA and/or trifluoroacetylacetone (TFA) and/or Hexafluoro acetone and/or diphenylguanidine and/or triphenyl phosphorous oxide and/or trioctylphosphine oxide and/or HEDTA and/or EDTA and/or diphenyl-methane and/or two ethane and/or 2-naphthoyltrifluoroacetone, or bright B of Luo Da or fluorescer or use Ga ³⁺And/or Sc ³⁺With HNT and/or the amino complex of forming of salicylidene, or use Ga ³⁺And/or Al ³⁺And/or In ³⁺The complex of forming with azo dyes or use Al ³⁺And/or Ga ³⁺And/or In ³⁺And/or La ³⁺And/or Y ³⁺And/or the complex of dysprosium ion and/or terbium ion and morin and/or quinoline and/or Luo Daming dyestuff and/or 4-sulfo group phenyl-2-methyl-pyrazolone-5 composition; Auxiliary agent comprises that printing ink removes light dose or surfactant.