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420 results about "Security printing" patented technology

Security printing is the field of the printing industry that deals with the printing of items such as banknotes, cheques, passports, tamper-evident labels, security tapes, product authentication, stock certificates, postage stamps and identity cards. The main goal of security printing is to prevent forgery, tampering, or counterfeiting. More recently many of the techniques used to protect these high-value documents have become more available to commercial printers whether they are using the more traditional offset and flexographic presses or the newer digital platforms. Businesses are protecting their lesser-value documents such as transcripts, coupons and prescription pads by incorporating some of the features listed below to ensure that they cannot be forged or that alteration of the data cannot occur undetected.

Multi-dimensional encryption anti-counterfeiting printing technology based on binary signals

The invention discloses a multi-dimensional encryption anti-counterfeiting printing technology based on binary signals. According to the anti-counterfeiting printing technology, two-dimensional encryption anti-counterfeiting information can be generated into binary modulation signals by encryption and channel coding, and the anti-counterfeiting information is orderly changed in an amplitude modulation screening form and embedded into a whole page in a modulation mode of a circulating table look-up method, so that the anti-counterfeiting information can be identified from a random fragment during presswork identification. The technology has strong fragment resistance, can resist illegal copying behaviors based on a camera, a scanner, an electronic document and the like more effectively, and can be widely applied in the anti-counterfeiting field of presswork.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Presswork encryption security printing technology based on multi-system quadrature amplitude modulation

The invention discloses a presswork encryption security printing technology based on multi-system quadrature amplitude modulation. By adopting the security printing technology, a paseudorandom modulating signal can be generated from anti-counterfeiting information through spread spectrum, encryption and channel coding, the anti-counterfeiting information can be embedded into a whole page through a multi-system quadrature amplitude modulation (QAM) mode, and the anti-counterfeiting information can be identified from any fragment in presswork identification. The invention has very strong smash-resistance, can effectively resist piracy behaviour based on cameras, scanners, electronic documents and the like, and can be widely applied to the field of presswork anti-counterfeit.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Encryption counterfeit printing technology of frequency modulated halftone dot space position for pseudo random signal modulation printed matter

The invention discloses an encryption counterfeit printing technology based on the frequency modulated halftone dot space position in a pseudo random signal modulation hybrid screening. The counterfeit printing technology can change the counterfeit information into the pseudo random modulation signal through spread spectrum, encryption and channel coding to generate, embed the counterfeit information in the entire page though the quadrature phase shift keying (QPSK), and identify the counterfeit information in any fragment when identifying the printing matter so that the technology of the invention has strong shatter resistant, can more effectively counter the illegal copying behavior based on cameras, scanners, electronic documents and the like, and can be widely applied in the counterfeit field of the printing matter.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Two-step method of coating an article for security printing

A two-step method of making of a security printed image is disclosed and includes coating of the surface of a substrate with a predetermined image shape with an ink containing flaked magnetic pigment in a predetermined concentration, exposing a wet printed image to a magnetic field to align magnetic particles in a predetermined manner, allowing the ink to cure, and coating the substrate with a second printed image on the top of the first image. The second printed image with the same or different image shape is printed with another ink containing clear or dyed ink vehicle mixed with flaked magnetic pigment in a low concentration, exposed to the magnetic field of the same or different configuration as the first printed image and cured until the ink is dry.
Owner:VIAVI SOLUTIONS INC

Multi-dimensional encryption anti-counterfeiting printing technology based on shape of amplitude modified screen

The invention discloses a multi-dimensional encryption anti-counterfeiting printing technology based on the shape of an amplitude modified screen, the anti-counterfeiting printing technology can be used for digitizing anti-counterfeiting information and generating a multi-dimensional encryption octal anti-counterfeiting information table with eight bits in each group, an octal modulation signal is generated by virtue of encryption and channel coding, the anti-counterfeiting information is embedded in the whole page by ordered changes in the shape of the amplitude modified screen through circulating table search and modulation of the amplitude modified screen, and the anti-counterfeiting information can be recognized from any fragment when a printed product is recognized, thereby having very strong anti-fragmentation property, fighting against illegal replication behavior based on a camera, a scanner, an electronic document and the like more effectively and being widely applied in the anti-counterfeiting field of printed products.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Anti-counterfeiting printing method by using invisible two-dimensional codes

The invention relates to an anti-counterfeiting printing method by using invisible two-dimensional codes. The anti-counterfeiting printing method is characterized in that at least four printing layers for printing are adopted, and comprises the following steps of: firstly, providing a digital serial number and splitting the serial number into three fields of which information is assigned to three groups of two-dimensional codes; secondly, printing one group of two-dimensional codes on a first layer by using aqueous ink black materials; thirdly, overprinting a grey isolating layer on the first two-dimensional code layer by using infrared non-absorbent materials to form a second layer; fourthly, overprinting a second group of two-dimensional codes on the second layer of the grey isolating layer by using the infrared non-absorbent materials to form a third layer; and finally, overprinting a third group of two-dimensional codes on the third two-dimensional code layer by using ultraviolet absorption materials to form a fourth layer. The method has the advantages of eliminating the possibility of imitation by scanning the two-dimensional codes and achieving relatively higher use value because the overprinting is performed in the same area in an offset printing and digital jet printing way and the upper printing layer covers the lower layer naturally.
Owner:HONGBO CO LTD

Banknotes with a Printed Security Image That Can be Detected with One-Dimensional Signal Processing

The present invention aims to propose a method to generate a security pattern to be embedded in an original image having the particularity that the detection of the security pattern can be achieved through a simple, low processing capability device. The present invention proposes a method for generating a security image comprising an original image and a security pattern, characterized in that the security pattern has the form of a grating in which the lines width and / or the line spacing is modulated to embody a predefined data, the security image is generated by the modulation of at least one color of at least a part of the original image with the grating. The present invention belongs to the fields of security printing and copy protection of banknotes. It aims at preventing illegal copy and duplication of banknotes by printing a security image on the banknote. A device capable of detecting this security image with one-dimensional signal processing is described. Acquisition and printing devices that contain this detector can perform a quick, on-the-fly analysis of the images that transit through them during their normal course of operations, and refuse to perform their function on an image if it contains the security image. This analysis is fast enough relatively to the normal operation of the device so as to go unnoticed by the user. The security image is incorporated by a bi-level halftone image. The Fourier transform of this halftone image contains a two-dimensional pattern with a circular symmetry that is built by applying a 360-degree rotation to a one-dimensional signal. This one-dimensional signal exhibits a degree of self-similarity across a given range of scale changes. It may be detected by traversing the two-dimensional pattern along a straight line passing through its center.
Owner:EURON CENT BANK

Partial printing of a substrate with edge sealed printed portions

This invention relates to the partial printing of a substrate with a plurality of layers to form a partially printed panel. Within each printed portion, at least one layer is applied to the substrate with inexact registration in relation to a second layer. A "control layer" comprising "edge sealing strips" is printed so that, within each printed portion, each edge of the at least two layers with inexact registration is located within the edges of an overlapping edge sealing strip. The edge sealing strips may provide a visual seal or mask at the edges of printed portions, for example to enable the each printed portion to have the desired color rendering within a one-way vision control panel. The invention can comprise the physical sealing of printed portions containing gaseous or liquid fluids or particles in suspension, such as fragrances, medication, environmentally reactive materials or security printing features.
Owner:CONTRA VISION

Luminous anti-forgery ink and its preparation method and use

The invention discloses a light anti-falsification printing ink and the preparing method. The printing ink contains a light material which can emit another visible light under the excitation of one visible light, the content of the material accounting for 20-50% of the printing-ink weight. The preparing method; making mixing, pre-separation and rolling on the light material and the printing-ink connecting material to get it. The printing ink can be used to the anti-falsification printing of the carrier like bill and to the carrier needing identification, and the detecting method; use the visible light to excite, and detect another one emitted from the impression.
Owner:CHINA BANKNOTE PRINTING & MINTING

Novel method for processing anti-counterfeit printing

The invention relates to a novel method for processing anti-counterfeit printing, belonging to the fields of message processing. The method comprises the generation method of a figure code and the identification method of the figure code. The method is characterized in that: the figure code is embedded into a printing image with the superposition of a printing image which consists of CMY three colors and has a black component and the figure code which consists of K color so as to form an anti-counterfeit printing image which can not be duplicated, be capable of realizing digital printing medium anti-counterfeit, solve a problem that a traditional analogue anti-counterfeit has a threshold value, be capable of drastically avoiding illegal acts such as merchandise fraud, paper currency fraud or stamp fraud and the like, crack down on crimes that illegal persons withdraw cash with devices such as ATM, and the like, and lead the ATM to have a function for automatically identifying the forged paper currency.
Owner:顾泽苍

Another processing method for digitized anti-fake printing

The invention relates to another processing method for digitized anti-fake printing in the field of information processing, which is characterized in that an invisible dot matrix bar code capable of recording information through printing is printed on an anti-fake label, wherein an image of the invisible dot matrix bar code is segmented into a plurality of partial images; and the segmented images are respectively printed on a printing medium by one printing material through different printing ink, ink powder and ink. By adopting the digitized anti-fake technology provided by the invention, wrongdoers can be prevented from breaking the invisible dot matrix bar code by using an image sensor with a peculiar spectrum, the anti-fake effects of preventing electrodispersion and keying can be really achieved and one-fake one-code can be really realized on ordinary printing equipment, printing ink and printing medium, so the problems of bill faking, tampering, commodity counterfeiting, and the like which spread in society are thoroughly solved and harmonious development of the society is promoted.
Owner:天津市阿波罗信息技术有限公司

Secure printing system and method for the same

The present invention provides a secure printing system, which includes: a client PC for creating print data for secure printing; one or more printers for performing printing; authentication data acquisition means provided for each printer , for obtaining the authentication data of the user who created the print data; and the print control PC, wherein the following steps are performed: if the client PC creates the print data, the print data is kept in the client PC, and at least the authentication information about the user is Notify to the print control PC; If the authentication data acquisition device obtains the authentication information about the user, then the authentication information is sent to the print control PC along with the information about the corresponding printer; the print control PC uses these authentication information to perform authentication; if the authentication is successful, The print control PC then notifies the client PC of print approval together with information about the printer; the client PC sends print data to the printer; and the printer executes printing.
Owner:CEC

Printing-free protective gloss oil holographic anti-counterfeiting positioning direct-ironing gold blocking film and preparation method thereof

The invention discloses a printing-free protective gloss oil holographic anti-counterfeiting positioning direct-ironing gold blocking film and a preparation method thereof, is used for surface anti-counterfeiting printing of glass, metal, ceramic and the like, and relates to the technical field of anti-counterfeiting package printing. The film comprises a base film layer, a release layer, an information coloring layer, a laser mould pressing layer, a vacuum aluminum coated layer and a gum layer which are arranged from inside to outside, the release layer is formed by spreading and drying release agent coating liquid; the information coloring layer is formed by spreading and drying information coloring coating liquid; the laser mould pressing layer adopts an anti-counterfeiting laser pattern formed by mould pressing; and the vacuum aluminum coated layer is formed on the surface of the laser mould pressing layer by vaporizing and evaporating aluminum wires uniformly under high-current vacuum. Compared with the prior art, the film has stronger high-temperature resistance, cracking resistance, discoloration resistance, alcohol resistance and water soaking resistance, holographic patterns or characters can be added according to customer requirements, the anti-counterfeiting function is achieved while the attractiveness of the product is improved, the technological process can be reduced, the anti-counterfeiting performance is improved, the processing technology is simplified, and the production time is saved.
Owner:杨志勇

RFID printed antenna hot stamped electronic tag and manufacturing method thereof

The invention belongs to the field of information technology and anti-counterfeiting printed antennas, and particularly relates to an RFID printed antenna hot stamped electronic tag and a manufacturing method thereof. The electronic tag comprises a PET substrate layer; a release layer, an information layer, a printing layer, a first glue layer, an antenna substrate layer and a printed antenna layer are sequentially from bottom to top arranged on the PET substrate layer; flip chip packaging is carried out on the printed antenna layer, and a second glue layer is arranged on the chip. The PET is selected to serve as the substrate, and the release layer and the information layer are coated on the PET substrate layer; teletext information is then printed, glue is applied, the antenna substrate is printed, conductive oil ink is then printed, flip chip packaging is then carried out on the well-printed antenna, glue is then applied, and after being dried, the tag is transferred to a stuck object in a hot stamping mode. Organic combination between the hot stamping technology and the electronic tag can be realized, the manufactured electronic tag has stable performance, environmental protection is realized, the cost is low, the manufacturing process is relatively simple, the appearance is attractive, damage is not likely to happen, double counterfeiting prevention can be realized, and the anti-counterfeiting force is improved.
Owner:SHANDONG TAIBAO PREVENTING COUNTERFEIT

Method for manufacturing implicit image for anti-counterfeit printing

The invention discloses a method for manufacturing an implicit image for anti-counterfeit printing, comprising the steps of manufacturing a printing carrier and a recognition diaphragm, placing graphics and texts to be hidden at a certain position of a carrier picture and forming an implicit image area around the position, carrying out staggered shifting on outlines of the graphics and texts to be hidden on the image in the implicit image area, stacking and coining more than two layers of implicit images, carrying out plate making and printing, placing the recognition diaphragm at the implicit image area of the carrier picture and regulating the direction and the angle of the diaphragm to show the implicit image, wherein the implicit image is the more than two layers of implicit images which are formed by at least a group of points and a group of lines; the implicit image comprises vector and non-vector graphics and texts; and the implicit image area at least comprises a group of filling line layers and a group of filling dot layers. In the invention, by means of the more than two layers of implicit images which are formed by at least a group of points and a group of lines, the scanning and the copying of fake makers are fundamentally prevented and the safety performance of products is improved.
Owner:北京印刷集团有限责任公司

Method for making multiple-positioning holographic anti-counterfeiting printing paper and products thereof

InactiveCN102514409ASufficient molding pressureSmall molding deformationDuplicating/marking methodsPattern printingPolyesterHot stamping
The invention relates to the technical field of holographic anti-counterfeiting printing, particularly relates to a method for making multiple-positioning holographic anti-counterfeiting printing paper and products thereof and provides a multiple-positioning holographic anti-counterfeiting printing method and multiple-positioning holographic anti-counterfeiting printing paper which are used for making a plurality of patterns with different anti-counterfeiting effects and appearances, or a plurality of patterns with ensured precision of positional dimensions among all the patterns, and positioning and printing the patterns by means of ink patterns and holographic patterns on paper according to the design requirements to make the whole surface of packing paper have anti-counterfeiting texts and patterns. The method comprises the following steps of: designing the positioning of the holographic patterns, editing a variable table, revising positioning accuracy requirements, precisely making plates, electroforming, controlling coating, precisely transferring, precisely controlling molding pressing parameters, compounding paper films, peeling surface polyester (PET) film and preparing the multiple-positioning holographic novel anti-counterfeiting environmental-protection paper. The pattern printing can be positioned again by taking full-version holographic patterns as a base material on a printer if the full-version holographic patterns exist, hot stamping procedures are reduced, the cost is saved, the anti-counterfeiting performance is improved, the grades of printed materials are promoted, and the energy is conserved, and the environment is protected.
Owner:JIU GUOCHUN WUHAN PACKAGING TECH CO LTD

Method and device for triple-corresponding positioning compounding of anti-counterfeit printing

The invention relates to a method for triple-corresponding positioning compounding of anti-counterfeit printing. The method comprises the following steps: printing patterns on a flexible printing machine; printing first identifying markers on two sides of each plate, thereby obtaining an anti-counterfeit identified coiled material; printing second identifying markers on the two sides of each plate of a gold blocking foil roll; finally, putting the printed anti-counterfeit identified coiled material, the gold blocking foil roll and a hot stamping plate on a triple-corresponding positioning compounding device for performing triple-corresponding combined positioning printing, thereby once finishing the hot stamping and cover ink printing of the anti-counterfeit identified coiled material. Meanwhile, the invention relates to the triple-corresponding positioning compounding device which comprises a hot stamping system, a gold blocking foil roll correcting system and a cover ink printing system. According to the invention, the processing procedure is reduced and the production efficiency is increased; the hot stamping efficiency is increased and the hot stamping speed can reach 50 meters per minute; the efficiency of the cover ink printing is increased and the bottleneck problem of ink scraping of cover scrape is thoroughly solved; the manpower is saved, the material consumption is reduced and the environmental protection is benefited.
Owner:SHANDONG TAIBAO PREVENTING COUNTERFEIT

Digital anti-counterfeit printing processing method

The invention relates to a digital anti-counterfeit printing processing method in the field of information processing. The method is characterized in that: an anti-counterfeit label is a printed hidden dot matrix barcode capable of recording information through printing, wherein the hidden dot matrix barcode is printed on a print media through one or more printing materials in readable printing ink, powdered ink and writing ink; and a camouflage part of the hidden dot matrix barcode consists of a camouflage dot matrix and a dot matrix label and is printed on the print media through a printing material in unreadable printing ink, powdered ink and writing ink. By the digital anti-counterfeit technology, electrical separation and keying can be prevented on common printing equipment, printing ink and print media, and one label corresponds to one code; therefore, the problems of forged and tampered notes, fake goods and the like in the society are radically solved, and harmonious development of society is promoted.
Owner:顾泽苍

Dynamic Mohr encryption method of anti-counterfeiting image

The invention relates to a plate-making technology in holographic anti-counterfeiting printing and particularly relates to a dynamic Mohr encryption method of an anti-counterfeiting image. The invention provides the dynamic Mohr encryption method of the anti-counterfeiting image, which has the advantages of laser hologram, overlapping of a plurality of hidden encrypted patterns, clear decoded encrypted patterns, good hiding performance, continuous vivid representation and dynamic effect; a plurality of layers of related white and black encrypted patterns are overlapped on an anti-counterfeiting identification and are processed by a computer optical grating to obtain parallel straight-line clusters which have the same optical grating frequency and have the different optical grating directions to form an optical grating pattern; the frequency of the parallel straight-line clusters is slightly changed in an encrypted pattern region, namely one section of an arc-shaped bending line cluster which is waved in the same direction is arranged between a starting point and a finishing point of crossing the parallel straight-line clusters and the encrypted pattern; the direction of each layer of the parallel straight-line clusters is rotated, overlapped and hidden according to a related sequence at an equal angle to form a synthesized pattern; and a decoding sheet with the frequency which is the same as that of the optical grating pattern is overlapped on the synthesized pattern to be rotated and observed, and n layers of the related encrypted patterns are obviously displayed in sequence in an animation manner. The dynamic Mohr encryption method of the anti-counterfeiting image improves the anti-counterfeiting capability and is novel.
Owner:HUBEI LHTC ANTI COUNTERFEITING TECH CO LTD

Method, computer readable storage, and system to provide security printing using a printer driver

A method, computer readable storage, and system that provides security printing using a network printer. More particularly, a method, computer readable storage. and system that provides security printing using a general purpose printer that does not support an encryption function. The system can include at least one terminal having a printer driver and a network printer connected to the terminal via a network. Output data can be encoded at a first terminal and the encoded output data can be stored in a predetermined location designated by a user. The encoded output data that is stored in the predetermined location is decoded at a second terminal, the decoded output data is transferred to the network printer, and the decoded output data is printed.
Owner:SAMSUNG ELECTRONICS CO LTD

Printing method, print system and program

In a printer system in which a plurality of virtual printers can be set, virtual printer names are properly used to select ordinary printing and security printing whose contents should be kept confidential. When print data whose contents should be kept confidential is printed, a virtual printer name for security printing, e.g., "sp2351", is set upon directing printing. A printer identifies the virtual printer name for security printing by a part "sp", and temporarily stores the contents to be printed in a memory. Subsequently, when the user inputs "2351" directly to the printer, printing is done.
Owner:RICOH KK

Manufacturing method for double-layer holographic anti-counterfeiting film

InactiveCN104070869ASolve the problem of low inspection and anti-counterfeitingNo loss of functionalityStampsDuplicating/marking methodsInformation layerEngineering
The invention relates to the holographic anti-counterfeiting printing industry, in particular to a manufacturing method for the double-layer holographic anti-counterfeiting film. Printing ink is partially printed between a laser information layer and an aluminum-plated layer, and random anti-counterfeiting holographic color piece carrier dope partially coats the part between the laser information layer and the aluminum-plated layer to form double-layer hologram to prepare a product with the double-layer holographic film; the manufacturing method also can prepare double-layer hologram which is completely coated with the random anti-counterfeiting holographic color piece carrier dope through secondary coating; when identifying, the anti-counterfeiting holographic color piece in the partially anti-counterfeiting holographic color piece carrier dope layer is manually peeled from a product body by an identifying person to server as independent anti-counterfeiting holographic information material; the identifying person inspects the product authenticity in an experience mode, a traditional anti-counterfeiting method is combined with a two-dimensional code, the conversion of the anti-counterfeiting mode provides a lot of product information, different unique anti-counterfeiting methods are used, and the two-dimensional code and the randomly sprayed color piece make up a variety of unique patterns to meet the anti-counterfeiting uniqueness requirement; the double-layer holographic anti-counterfeiting film is a new anti-counterfeiting identifying mode, enables the anti-counterfeiting data information amount to be expanded, is convenient to identify and enables the laser anti-counterfeiting identifying efficiency to be improved.
Owner:HUBEI LHTC ANTI COUNTERFEITING TECH CO LTD

Preparation method of dual-layer holographic anti-counterfeiting film, product with dual-layer holographic anti-counterfeiting film, and recognition method

InactiveCN104070739ASolve the problem of low inspection and anti-counterfeitingAccurate comparisonSynthetic resin layered productsLaminationInformation layerData information
The invention relates to the holographic anti-counterfeiting printing industry, and particularly relates to a preparation method of a dual-layer holographic anti-counterfeiting film, a product with a dual-layer holographic anti-counterfeiting film, and a recognition method. Ink is partially printed between a laser information layer and an aluminum coated layer, and a random holographic information material is partially coated for the second time so as to form dual-layer holography, so that a product with the dual-layer holographic membrane is prepared, and the dual-layer holography of a full-edition secondary coating random holographic information material also can be prepared; a holographic information material in the partial holographic information material layer is manually stripped away from a product main body in recognition by recognizers so as to form an individual anti-counterfeiting holographic information material; the recognizers can check the true or false of the product in an experiencing mode; a traditional anti-counterfeiting method is combined with two-dimensional codes; the conversion of the anti-counterfeiting mode provides a great amount of product information; multiple unique anti-counterfeiting methods, the two-dimensional codes and random spray color films are adopted to form multiple unique patterns, and the anti-counterfeiting uniqueness requirement is met; the recognition method is a novel anti-counterfeiting recognition mode, expands the anti-counterfeiting data information amount greatly, is convenient to recognize, and improves the laser anti-counterfeiting identification efficiency.
Owner:HUBEI LHTC ANTI COUNTERFEITING TECH CO LTD

Partial printing of a substrate with edge sealed printed portions

This invention relates to the partial printing of a substrate with a plurality of layers to form a partially printed panel. Within each printed portion, at least one layer is applied to the substrate with inexact registration in relation to a second layer. A “control layer” comprising “edge sealing strips” is printed so that, within each printed portion, each edge of the at least two layers with inexact registration is located within the edges of an overlapping edge sealing strip. The edge sealing strips may provide a visual seal or mask at the edges of printed portions, for example to enable the each printed portion to have the desired color rendering within a one-way vision control panel. The invention can comprise the physical sealing of printed portions containing gaseous or liquid fluids or particles in suspension, such as fragrances, medication, environmentally reactive materials or security printing features.
Owner:CONTRA VISION

Two-dimension code anti-counterfeiting printing and verification method adopting digital watermark technology

InactiveCN104063731AFast Fast and Effective EncryptionRealize the anti-counterfeiting problemCommerceRecord carriers used with machinesAlgorithmTheoretical computer science
The invention relates to a two-dimension code information hiding anti-counterfeit technology, in particular to a two-dimension code anti-counterfeiting printing and verification method adopting a digital watermark technology. The two-dimension code anti-counterfeiting printing and verification method comprises the steps of: performing DCT conversion on a two-dimension code image to obtain a DCT coefficient pair; dividing the pixels of the two-dimension code image into blocks, and determining information of part of a watermark to be embedded into each block; selecting positions according to blocks, and embedding the watermark, thus obtaining the two-dimension code image embedded with the watermark. When in verification, the two-dimension code image with watermark is subject to DCT conversion to obtain the DCT coefficient pair, and thereby the watermark is obtained; and the obtained watermark is compared with the extracted watermark to judge whether falsifying occurs. According to the method provided by the invention, the two-dimension code can be effectively and rapidly encrypted, and also can be accurately verified whether being falsified or not.
Owner:CHANGSHA ZIOSUP NETWORK TECH

Method for producing optical variable device (OVD) two-dimensional code hot stamping foil through aluminum washing process

The invention provides an anti-fake mark production method which enables two-dimensional codes and optical variable device (OVD) positioning hot stamping foil to be combined to be applied, carries out further treatment on parts of the OVD positioning hot stamping foil undergoing aluminum washing and reinforces composite multiple anti-fake function of anti-fake marks. The production method aims at overcoming the shortcomings that in the prior art, anti-fake marks prepared through a laser etching or aluminum washing process are single in anti-fake function, process equipment is complex, production efficiency is low, and equipment investment is large, and the like. The production method improves efficiency on the basis of traditional laser etching production. Besides, due to the fact that the requirements of the method for equipment, plants and staff configuration are simple, the investment is small, the difficulty in expanding production scale is low, and the method is favorable for popularizing and improving an anti-fake technology of products and promotes technical progress of the anti-fake printing industry. The adopted technical scheme is that the method comprises coating of a release layer and an information layer, die pressing, printing of protecting gloss oil, positioning printing of aluminum washing ink in a code-varying code-spraying mode, vacuum aluminizing, partial aluminum washing, application of gum and striping.
Owner:YUNNAN HOLOBEAM SECURITY TECH

Online refraction anti-counterfeiting printing method

The invention relates to an online refraction anti-counterfeiting printing method, which is achieved by the following steps: printing and adopting reverse glazing bottom oil and reverse glazing face oil on a printing surface; carrying out reverse crosslinking curing reaction under irradiation of an ultraviolet light, and forming a stereoscopic effect, wherein a color cell of the printer is adopted by the printing of the reverse glazing bottom oil, and dark fringes are added to the printed pattern. The online refraction anti-counterfeiting printing method has the beneficial effects that a refined refraction anti-counterfeiting pattern is produced by the high-definition reverse glazing technology, and the dark fringes which cannot be distinguished by naked eyes are formed and can be seen through a decoding sheet, thereby greatly improving the anti-counterfeiting security of package.
Owner:SHANGHAI SUNGLOW PACKAGING TECHNOLOGY CO LTD
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