35 results about "Security printing" patented technology

The invention discloses an anti-counterfeiting printed matter preparation and identification method and system based on halftone frequency compensation, and the method comprises the steps: determining the compensation frequency of an embedded texture needed to be embedded into an original digital image according to the frequency of macroscopic moire patterns induced when an input anti-counterfeiting printed matter is copied; designing an embedded texture based on halftone frequency compensation according to the compensation frequency, and generating a digital image hidden with the embedded texture; and outputting the digital image hidden with the embedded texture to a printing material through printing equipment to obtain an anti-counterfeiting printed matter. The invention aims to utilize the active induction mechanism of the moire to actively induce the moire characteristics excited in the frequency domain and the micro texture at the moment of imaging of the copy, the discrimination of the copy is converted from searching a weak signal to detecting significant interference, and the stability of anti-counterfeiting printed matter discrimination in the application scene of complex media and cross-brand equipment is improved.

The invention relates to the technical field of anti-counterfeit printing, in particular to a multi-parameter variable-sequence three-dimensional encrypted binary anti-counterfeit printing method, which comprises the following steps of: analyzing pixel information of an original printing image, and decomposing the pixel information into three independent dimensional components of space, brightness and texture; each component is mapped with an encryption parameter library formed by associated dynamically adjustable encryption elements, and differential processing of position disorder, brightness migration and texture weaving is performed on each component; and synchronizing each component and calculating a global synchronization factor, updating the encryption parameter library by using the factor in a collaborative variable sequence manner, and carrying out secondary encryption on each component based on the updated parameter library to generate a final anti-counterfeiting coding sequence. According to the method, encryption pertinence, diversity and concealment are enhanced, reverse cracking is avoided, uniqueness and non-replicability of anti-counterfeiting codes are improved, anti-counterfeiting capability is enhanced, and the method is adaptive to anti-counterfeiting printing of high-end products.

The invention discloses an invisible anti-counterfeiting method based on a printing dot structure, electronic equipment and a storage medium. The method comprises the following steps: acquiring a first image of an anti-counterfeiting mark of a to-be-verified product; performing identification processing on the first image, and confirming a first verification area and a second verification area of the anti-counterfeiting mark; obtaining a first grid structure of the first verification area and a second grid structure of the second verification area according to the first image; and determining an authenticity identification result of the to-be-verified product according to the first grid structure and the second grid structure. The printing steps of the anti-counterfeiting mark are as follows: acquiring a preset standard image; based on a preset partitioning strategy, determining a first printing area and a second printing area in the standard image; and controlling a spot color printing module in the invisible anti-counterfeit printing equipment to print based on the first printing area of the standard image, and controlling a color-colliding printing module in the invisible anti-counterfeit printing equipment to print based on the second printing area of the standard image to obtain the anti-counterfeit mark.

This utility model relates to the field of woven bag technology and discloses a double-sided printed anti-counterfeiting woven bag structure, including a bag body, a sealing rope, an anti-counterfeiting code, and elastic support strips. The bag body, from the outside to the inside, includes an outer waterproof layer, a woven fabric layer, an inner waterproof layer, and an inner lining layer, and both sides of the bag body are covered with an anti-counterfeiting printed coating. A rope hole is provided at the top of the bag body, through which the sealing rope passes. The anti-counterfeiting code is printed on the outer surface of the bag. The elastic support strips are symmetrically arranged and located on the bottom of the bag body opposite the inner wall. The anti-counterfeiting printed coating and anti-counterfeiting code effectively improve the anti-counterfeiting performance of the woven bag, enhancing product security and brand trust. Simultaneously, the design of the outer and inner waterproof layers gives the woven bag excellent waterproof performance, better protecting the packaged goods from moisture.

The utility model discloses an anti-counterfeiting adhesive sticker, and relates to the technical field of adhesive stickers. The adhesive sticker comprises an adhesive sticker body, the adhesive sticker body comprises two substrates, an accommodating gap is formed between the two substrates, and an anti-counterfeiting printing plate for printing anti-counterfeiting authentication is arranged in the accommodating gap; the telescopic assembly is arranged in the accommodating gap and is used for sending the anti-counterfeiting printing plate out of the non-setting adhesive body for anti-counterfeiting detection; the tearing assembly is used in cooperation with the telescopic assembly, and the tearing assembly is used for crushing the whole structure of the adhesive sticker body when the anti-counterfeiting printing plate is sent out; the tearing assembly ensures that the anti-fake sticker is structurally damaged after being used and cannot be recovered, and secondary utilization is effectively prevented.

This invention discloses a method for selecting channels for embedding and extracting anti-counterfeiting watermarks in printed images, belonging to the field of anti-counterfeiting printing technology. The method of this invention breaks with the default approach of extracting watermarks from the same channel in which they are embedded. The watermark extraction position and embedding position proposed in this invention can be the same or different. Instead, regardless of whether the watermark is embedded in RGB or CMYK color mode, it is extracted in RGB color mode, resulting in better extraction performance.

The application discloses a kind of cloud security printing systems and methods, system includes: printing terminal, for after identifying the U-KEY device inserted PIN code input by user is sent to cloud server platform and carries out identity authentication;And after receiving the information of identity authentication pass, initiate printing task application and upload the file needing printing;Printer resource pool, for after identifying the U-KEY device inserted PIN code input by user is sent to cloud server platform and carries out identity authentication;And after receiving the information of identity authentication pass, request corresponding print list and print after receiving print file queue;Cloud server platform, for according to PIN code uploaded by printing terminal and printer resource pool, the identity of user is authenticated;And when the printer identity authentication passes after U-KEY device is inserted, corresponding print file queue is issued to printer.The application can improve the security of cloud printing identity authentication process and the utilization of printing equipment.

The application relates to an anti-fake printing equipment and belongs to the technical field of printing equipment, which comprises an anti-fake printing machine, a feeding table is arranged at the feeding end of the anti-fake printing machine body, a cavity is arranged in the feeding table, a plurality of placing holes are arranged in the upper part of the cavity, a plurality of pulleys are arranged in the upper part of the cavity, the placing holes and the pulleys are in one-to-one correspondence, the upper part of the sidewall of the pulley is arranged outside the placing hole, a driving motor for driving the pulley to rotate is arranged at the upper end of the feeding table, a wind collecting cover is arranged in the cavity, one end of the wind collecting cover is fixedly connected to the inner wall at the upper end in the cavity, an air draught fan is arranged at the other end of the wind collecting cover, a supporting frame is arranged above the feeding table, and a pressing assembly for pressing a product on the pulley is arranged on the supporting frame. The application has the effect of reducing the occurrence of paper jam of the anti-fake printing equipment.

To provide a technology that can properly execute printing processes in a security printing function that performs print jobs associated with passwords and a storage printing function that performs print jobs associated with user identification information. [Solution] The MFP1 has a security printing function that prints print jobs 75 that include a password 83, and a storage printing function that prints print jobs 75 that include a username 85. In response to receiving a setting to execute the storage printing function (S77:YES), the MFP1 saves the received print job 75 to memory 15 without determining whether a password 83 is set for the print job 75 (S87). The CPU 12 also prints the print job 75 stored in memory 15 without receiving the password 83 via the touch panel 21.

The invention relates to the technical field of anti-counterfeit printing, in particular to a microstructure holographic anti-counterfeit UV plate making method and system.The method comprises the steps that the focusing depth and the installation position of a target layout image are collected through a target CCD camera, a light path positioning model is constructed, and accurate mapping of image pixel microstructure coordinates and physical positions in a three-dimensional plate making coordinate system is achieved; the layout range and the micro-unit size of the UV printing plate are determined by combining the depth characteristics of the microstructure in the target range and the light path positioning model; and based on a light path positioning model with aberration correction, each micro-unit is accurately projected to a target layout image, and a corresponding holographic anti-counterfeiting UV printing plate is generated. According to the method, through combination of depth perception, coordinate mapping and aberration correction, automatic positioning and self-adaptive division of microstructure plate making are realized, projection definition and curing consistency are improved, the problems of positioning deviation, pattern distortion and edge blurring in traditional plate making are solved, and the precision, identification degree and anti-counterfeiting performance of holographic anti-counterfeiting patterns are improved.

The present invention relates to a pigment mixture based on spherical particles having a defined particle-size distribution, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.

The application discloses a kind of anti-fake printing detection device for wine packaging box, it is related to anti-fake printing detection device field, it includes detection rack, the detection rack is equipped with conveying belt and two mounting brackets, one the detection scanner of swing installation is installed on the mounting bracket;And still including bearing positioning mechanism and scanner automatic cleaning device.It needs to be explained, the position of packaging box is corrected by two arc-shaped positioning clamps, and the weight of packaging box is detected by bearing rotating plate, to avoid the problem that the wine in packaging box is lost due to evaporation or breakage;Multiple dust suction heads are used to clean the surface of packaging box, to ensure the cleanliness of packaging box, and thus ensure the accuracy of detection.In addition, the detection scanner moves to drive the protective slide to move, the protective slide continuously moves, so that the extrusion slide bar is cleaned by the cleaning scraper to clean the detection scanner, so as to ensure the cleanliness of the detection scanner, and thus further ensure the accuracy of detection effect.

The present invention relates to the field of improved opacified polymeric transparent substrates (x00) for use in making security documents such as banknotes, said substrates (x00) combining good mechanical performance and that can be easily handled for subsequent multi-step security printing processes. In particular, the present invention provides kits for manufacturing an opacifying system (x10) either on one side or on both sides of a polymeric transparent substrate (xx0), said kit comprising a) a first composition for manufacturing an opacifying layer (x11), b) a second composition for manufacturing a conductive layer (x12), and c) a third layer composition for manufacturing an acceptance layer (x13), wherein the first, second and third compositions comprise i) water, ii) a water-soluble or water-dispersible resin, iii) a white pigment, iv) a wax, wherein at least one of the first, second and third compositions comprises an anti-static agent, and wherein at least two of said first, second and third compositions comprise a mica compound.

The utility model discloses an adhesive tape structure with various anti-counterfeiting and anti-uncovering functions. The adhesive tape structure comprises an isolating layer, an anti-counterfeiting printing layer, an aluminum plating layer, a base material layer, an anti-counterfeiting characteristic layer and an adhesive layer which are sequentially stacked from bottom to top, after the adhesive tape is torn off finally, part of the adhesive layer is adhered to the surface of an object to be adhered, and an anti-counterfeiting mark is left through the anti-counterfeiting feature layer, so that the purposes of counterfeiting prevention and secondary adhesion prevention are achieved; the aluminized layer is provided with photoetching fine patterns or characters through a laser engraving technology, and different illumination colors and different three-dimensional effects are shown when observed from different angles; the anti-counterfeiting printing layer is transparent ink which is printed on the base material layer or the aluminum plating layer through a printing machine and is anti-counterfeiting based on illumination identification; according to the utility model, the photoetching fine patterns or characters are arranged on the aluminized layer through the laser engraving technology, and the transparent ink based on illumination identification anti-counterfeiting and temperature change identification anti-counterfeiting is arranged on the base material layer or the aluminized layer, so that the purpose of increasing the anti-counterfeiting identification degree in double or multiple ways is achieved.

The present invention relates to compounds of the formula (I′), especially compounds of formula (I), a process for their preparation and their use as almost colourless IR absorbers, for optical filter applications, especially for plasma display panels, or for laser welding of plastics. The compounds may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and are particularly well-suited for security applications, or for brand protection; or as marker for liquid. Compounds of formula (I′), especially compounds of formula (I), represent almost colourless IR absorbers, which exhibit high resistance against chemicals and solvents as well as good light stability and good thermal stability. Due to their unique application properties they can be advantageously employed as IR absorbers for laser writing, heat shielding, security printing, the laser-welding of plastics and as marker for liquids.

This invention discloses a colorful anti-counterfeiting QR code manufacturing process and secure identification algorithm, relating to the fields of anti-counterfeiting printing and QR code recognition technology. The process primarily involves sequentially printing three types of metameristic inks onto a substrate to form a dataset identification code, a data verification code, and a time-series verification code. The three inks exhibit minimal color difference (ΔE < 1.0) under natural light to conceal the pattern, while displaying a 4-5 times brightness contrast under red, green, and blue monochromatic light, respectively, enabling multimodal information storage. During identification, a mobile application controls the screen to sequentially emit multiple monochromatic lights to illuminate the QR code, and a camera captures reflected images under different light conditions. By comparing the reflection characteristic model and time sequence consistency, the authenticity of the physical entity is determined, and decoding is performed. This technical solution combines the principles of static QR codes, offering a cost advantage while providing both concealed anti-counterfeiting and dynamic verification capabilities, making it suitable for high-end anti-counterfeiting labels.

The application discloses a kind of magnetic field response type photocuring magnetic anti-fake printing products and preparation method thereof, it is related to anti-fake printing technical field, including cotton fiber security paper, reactive interface layer P and magnetic top layer I;When preparing, paper base is pre-adjusted wet, interface layer P is coated and pre-cured to acrylic double bond conversion rate 46 to 58%, then print the magnetic top layer I containing surface bifunctionalization sheet magnetic photochromic pigment, make wet film be oriented after magnetic field, and first pass UV pre-pinning is carried out 10 to 14 milliseconds after magnetic field peak position, and is carried out UV final curing and dark post-curing after Interface layer P and magnetic top layer I share isobornyl acrylate and tetrahydrofurfuryl alcohol acrylate, form controlled P / I interdiffusion depth and functional layer-substrate transition zone depth.The method can inhibit paper base capillary liquid extraction and edge outer climb, improve bright strip edge sharpness, rolling bright strip continuity, wear resistance, folding durability and continuous printing stability, and reduce waste strip rate and volatility.

The utility model discloses laser coding anti-counterfeiting printing equipment, which relates to the technical field of anti-counterfeiting printing equipment and comprises a first conveying table, a second conveying table is mounted at the upper end of the first conveying table, the length of the first conveying table is larger than that of the second conveying table, a first side plate is mounted on each of two sides of the first conveying table, and a second side plate is mounted on each of two sides of the first conveying table. Two sides of the second conveying table are each provided with a second side plate, the inner side of the first side plate and the inner side of the second side plate are each provided with a telescopic plate, laser heads are installed at the lower ends of the telescopic plates, and a lifting plate is installed at the position, located on the outer side of the first conveying table, between the first side plate and the second side plate; and a rotating shaft is rotationally connected between the two lifting plates, one end of the rotating shaft is connected with a driving device, and an electromagnet is installed in the center of the surface of the rotating shaft. According to the utility model, a series of structures are arranged, automatic operation is realized in the whole process, manual intervention is not needed, and time cost can be saved to a greater extent.

The present application relates to anti-fake label packaging and printing process technical field, especially an environment-friendly anti-fake label packaging and printing process, comprising the following steps, according to the printing requirement of anti-fake label packaging, selecting the appropriate printing unit on the lithographic press, the label web to be printed and the packaging web are adopted intermittent unwinding mode, start two groups of unwinding mechanism to the label web and the packaging web are unwound, and in the unwinding process, the adhesive film is coated on the label web unwound adhesive surface by using the film laminating mechanism, the label packaging is transmitted to the lithographic press, and the printing surface of the label is printed by using water-based ink. The device is reasonable in design, which can avoid the problem of environmental pollution caused by the difficulty of degradation of anti-fake label in non-use condition, and is conducive to avoiding the problem of blurred discoloration of printing ink on the label caused by traditional process materials, and is conducive to improving the service life of anti-fake label packaging.

The invention provides an anti-counterfeit printing detection device for a packaging box, relates to the field of sensor detection, comprises a base and a conveying mechanism arranged on the base, and aims to solve the problems that in the prior art, when the surface temperature of a lens of a visual sensor is lower than the dew point of ambient air, the surface of the lens of the visual sensor fogs, and the surface temperature of the lens is too high. In order to solve the problem of low detection efficiency caused by blurring of images detected by a visual sensor due to the fact that the temperature of the surface of the sensor lens is higher than the dew point of ambient air by arranging a synchronous adjusting mechanism and heating the sensor lens through hot air discharged by the synchronous adjusting mechanism, the detection efficiency is improved. The condition that the sensor is fuzzy during detection is reduced, and the detection efficiency is improved; through the arrangement of the synchronous adjusting mechanism, the problem that in the prior art, dust adheres to a sensor lens and influences detection is solved; through arrangement of the synchronous adjusting mechanism, the problem of sensor damage caused by physical collision in the prior art is solved.

The invention relates to the technical field of laser holography anti-counterfeiting printing, in particular to an anti-counterfeiting bill printing system based on the laser holography technology, a tension fluctuation detection unit collects tension data of a base material in real time through a plurality of sensors, and a microprocessor of a control unit combines the elasticity modulus of the base material and the tension fluctuation frequency to control the anti-counterfeiting bill printing system based on the laser holography technology. Accurately calculating a grating spacing compensation value through a grating coupling compensation algorithm and a deformation lag correction factor; the diffraction angle compensation unit adopts dual-channel cooperative control, the first channel adjusts the pressure of a compression roller through force-position hybrid control and displacement redundancy check, and the second channel corrects the laser irradiation angle by means of a two-dimensional rotating platform and an angle dynamic pre-compensation mechanism; and model parameters are optimized through diffraction consistency verification and a neural network self-learning module, the influence of base material deformation caused by tension fluctuation is continuously counteracted, the consistency of holographic grating distances and the stability of diffraction angles are guaranteed, and the anti-counterfeiting performance and printing quality of bills are improved.

This application discloses an invisible anti-counterfeiting method, electronic device, and storage medium based on printed dot structure. The method includes: acquiring a first image of an anti-counterfeiting label of a product to be verified; performing recognition processing on the first image to identify a first verification area and a second verification area of ​​the anti-counterfeiting label; obtaining a first grid structure of the first verification area and a second grid structure of the second verification area based on the first image; and determining the authenticity identification result of the product to be verified based on the first grid structure and the second grid structure. The printing steps of the anti-counterfeiting label are as follows: acquiring a preset standard image; determining a first printing area and a second printing area in the standard image based on a preset partitioning strategy; controlling a spot color printing module in an invisible anti-counterfeiting printing device to print based on the first printing area of ​​the standard image; and controlling a contrasting color printing module in the invisible anti-counterfeiting printing device to print based on the second printing area of ​​the standard image, thereby obtaining the anti-counterfeiting label.

The invention belongs to the technical field of precise screen printing plate manufacturing, and provides a nickel screen printing plate for anti-counterfeit printing as well as a preparation method and application of the nickel screen printing plate. The composite design of the Ni-P-B gradient nickel net base body and the Ni-Cr alloy pattern metal film is adopted, the Ni-P-B gradient nickel net base body with the phosphorus and boron elements distributed in a gradient mode is constructed in the thickness direction through pulse electroforming, then the high-precision Ni-Cr alloy pattern metal film is formed through pattern electroplating, firm combination of the Ni-P-B gradient nickel net base body and the Ni-Cr alloy pattern metal film is achieved through a metallurgical bonding transition layer, and the Ni-P-B gradient nickel net base body and the Ni-Cr alloy pattern metal film are obtained. The contradiction between high-strength hardness and high-resolution ink passing amount, interface bonding strength and dimensional stability, and long-life durability and microstructure keeping of a traditional screen printing plate is solved, and the screen printing plate has the wide application value of achieving the structural anti-counterfeiting effect which is difficult to imitate by 10-30 [mu] m level fine line patterns and miniature characters in the anti-counterfeiting printing field of paper money, certificates, bills and the like.

The invention discloses a self-service terminal using a white card base material and used for issuing a security card. The self-service terminal can personalize and issue various types of cards including payment cards, government identity cards, driving licenses, student cards, company access cards and medical or insurance cards. According to the terminal, a certificate scanning module, a biological recognition verification module, a security printing module, a data personalization module, a certificate activation module and an issuing module are integrated in a tamper-proof shell. The system supports dispensing from blank white card substrates and optional pre-printed card feedstocks stored in dedicated card boxes, which can be selected by a controller to ensure flexibility and meet different operational requirements. According to the invention, the traditional card issuing process is shortened by eliminating the requirements of manufacturing, transporting and storing the pre-printed cards in a safety insurance library before the pre-printed cards are distributed to the end users. The demand for multi-place authentication and entity auditing through an EMV, a government or a private security organization is reduced, and the cost related to secure transportation and card processing is saved.

This invention discloses a method and system for preparing and identifying anti-counterfeiting printed materials based on halftone frequency compensation. The method includes determining the compensation frequency of the embedded texture to be embedded in the original digital image based on the frequency of the visible moiré patterns induced when the anti-counterfeiting printed material is copied; designing an embedded texture based on halftone frequency compensation according to the compensation frequency to generate a digital image containing the embedded texture; and outputting the digital image containing the embedded texture onto a printing substrate through a printing device to obtain the anti-counterfeiting printed material. This invention aims to utilize the active induction mechanism of moiré patterns to actively induce moiré features in the frequency domain and micro-texture at the moment of imaging of the copy, transforming the identification of copies from searching for weak signals to detecting significant interference, thereby improving the stability of anti-counterfeiting printed material identification in complex media and cross-brand device application scenarios.

The invention relates to a package anti-counterfeiting system based on a polynomial permutation function. The package anti-counterfeiting system comprises an anti-counterfeiting package, a mobile terminal APP, a storage server, a verification server and automatic color matching equipment, the invention also relates to a package anti-counterfeiting identification method, which comprises the following steps of: shooting the anti-counterfeiting printing area; sending the public key to the mobile terminal APP and the storage server; sending the pixel number; calculating and sending a verification ciphertext; calculating and sending a to-be-verified ciphertext; decrypting to obtain a verification plaintext numerical queue and a plaintext numerical queue to be verified; and comparing whether the numerical values with the same queue numbers in the two queues are the same one by one so as to judge the authenticity of the package. According to the invention, the possibility of being reversed is avoided, and the anti-counterfeiting reliability is ensured; the system safety is ensured; the possibility of sealing a fake data packet or a reverse'standard answer 'is avoided; the method is suitable for anti-counterfeiting printing of all product outer packages, and the cost is not increased; and the verification work can be completed anytime and anywhere without the need of extra equipment cost.

The application discloses a kind of personalization anti-counterfeiting printing film and preparation method thereof, setting release structure layer below BOPET bearing layer, so that personalization anti-counterfeiting printing film can be directly torn off surface BOPET bearing layer and antistatic layer under the action of release structure layer after printing the personal information of certificate holder by digital printer and laminating into card with card base material, both can meet the demand of personalization anti-counterfeiting printing film through digital printer, and the influence of antistatic layer on light transmittance is reduced to minimum. The holographic pattern of personalization anti-counterfeiting printing film is inside the surface of the prepared certificate, which increases the anti-counterfeiting visual performance of the certificate. In addition, the application realizes the bonding force between the enhanced reflection enhancement medium layer and the PET bearing layer through the component design of structural adhesive.

The invention relates to the technical field of anti-counterfeit printing materials, and discloses a temperature change anti-counterfeit printing coating which comprises a bearing substrate, a functional layer group and a protective surface layer which are sequentially arranged from bottom to top, the bearing substrate is made of a material adaptive to a target application scene, and the material comprises any one of plastic, paper and metal; the functional layer group at least comprises a temperature change core layer, the temperature change core layer contains at least one thermochromic component, the thermochromic component is selected from a nano modified microencapsulated pigment, and the color change temperature precision of the temperature change core layer is less than or equal to + / -0.3 DEG C. According to the invention, environmental thermal disturbance is resisted in a targeted manner through differentiated structural design, namely, the cavity of the heat insulation layer in the eight-layer structural scheme and the heat insulation sheet work together, so that interference of external temperature fluctuation on the temperature change core layer can be isolated, and the response time is shortened by more than or equal to 50%; according to the five-layer structure scheme, the photothermal conversion efficiency is optimized through 8% of graphene / CNTs composite filler, and rapid conduction and uniform distribution of heat are achieved.

The invention relates to a package anti-counterfeiting system based on an elliptic curve. The package anti-counterfeiting system comprises an anti-counterfeiting package, a mobile terminal APP, a storage server, a verification server and automatic color matching equipment, the invention also relates to a package anti-counterfeiting identification method, which comprises the following steps of: shooting the anti-counterfeiting printing area; sending the public key to the mobile terminal APP and the storage server; sending the pixel number; calculating and sending a verification ciphertext; calculating and sending a to-be-verified ciphertext; decrypting to obtain a verification plaintext numerical queue and a plaintext numerical queue to be verified; and comparing whether the numerical values with the same queue numbers in the two queues are the same one by one so as to judge the authenticity of the package. According to the invention, the possibility of being reversed is avoided, and the anti-counterfeiting reliability is ensured; the system safety is ensured; the possibility of sealing a fake data packet or a reverse'standard answer 'is avoided; the method is suitable for anti-counterfeiting printing of all product outer packages, and the cost is not increased; and the verification work can be completed anytime and anywhere without the need of extra equipment cost.