With the continuous emergence of the latest technology, its applications have also penetrated into various fields, and the printing anti-counterfeiting technology has also been expanded unprecedentedly, from the original single anti-counterfeiting measures to the current multitudinous high-tech anti-counterfeiting methods, but all anti-counterfeit technologies Must follow: good, economical, practical, easy to identify and other principles, or even the best anti-counterfeiting technology can not be promoted and applied; the current anti-counterfeiting technology, paper security, ink security, version of anti-counterfeiting, rainbow printing, bar code anti-counterfeiting, and The latest smart labels, 3D anti-counterfeit, biological anti-counterfeiting, compound anti-counterfeiting, Germany and Japan's newly-invented "microcircuitry" and Chinese scientists completed the "banknote printing technology", etc., The following brief discussion of these anti-counterfeiting.
(1) Paper security The anti-counterfeiting of paper currently occupies an important position in anti-counterfeiting technology, mainly in the following categories:
Including security line security paper:
It means that a metal or plastic wire is placed in the middle of the paper during the papermaking process. The early use of the wire is a special wire. Now use polyester-type plastic wire, micro-letter safety wire, fluorescent safety wire, etc. The shape is as long as it is a straight line. It is mentioned that the latest 3D security thread technology used in the new US dollar banknotes circulating in 2011 is the “3D security belt†on the right side of the Franklin image of the greenback; The American Independence Bell pattern and 100 words move around. The security tape is embedded in the banknote instead of printed.
Watermark paper:
Refers to papers with embossed, perspective, and touchable images, among which the watermark has three types of laser anti-counterfeiting paper: fixed watermark, semi-fixed watermark, and non-fixed watermark:
It refers to the combination of laser anti-counterfeiting technology and paper to make anti-fake paper. Such as the use of holographic anti-counterfeiting technology and special equipment, the holographic image produced in a specific position in the banknote, improve the security performance of red and blue fiber silk, color dot encryption paper:
It refers to the mixing of red and blue colored fibers or colored pieces (dots) into the pulp during papermaking, or scattering on the surface of the paper before the paper is unfinished, and fluorescent under ultraviolet irradiation, so that the paper is distinguished from the paper itself. Colored fibers.
Chemical Encryption Paper:
It refers to the addition of special compounds or the cloning of certain biological DNA fragments in the pulp when adding in the pulp or when sizing on the surface of the paper. The chemically-encrypted paper can be colored or exhibit electrostatic fluorescence records when coated with specific chemical reagents. paper:
It means that the paper surface is coated with a conductive layer and an insulating layer coating, and the voltage discharged from the needle electrode can be used to damage the insulating layer on the paper surface to form an electrostatic latent image with the conductive layer, so that the developer can adhere to the pattern when it is added. , Then hot melt fixed on the paper to produce a clear pattern.
Optical reading paper:
Refers to the printing paper used in optical readers, for reading text, the number known as OCR, reading special marks called OMR, due to the use of optical absorption or reflection to read, to avoid misunderstanding, to the paper Smoothness, abrasion resistance, cleanliness, etc. have higher requirements.
Magnetic recording paper (MICR paper):
It means that the surface of the paper is coated with a strong magnetic particle powder, and the magnetic ink can be used to print a paper that can be recognized by a computer.
(II) Ink security The current security inks can be divided into eight categories according to their anti-counterfeiting functions.
â–¶Daylight-induced color change ink;
â–¶UV (infrared) excitation fluorescent ink;
â–¶Heat, wet, pressure sensitive inks;
â–¶ Chemical reaction color ink;
â–¶Smart machine reading security ink;
â–¶Multifunctional integrated security ink;
â–¶Nano ink;
â–¶Other special inks Common security inks have the following types:
1) Sunlight-induced color-changing inks:
When it is in use, it can detect the authenticity as long as sunlight; the principle is to add a colorless isomeric organic photosensitive molecule to the ink to produce a certain color under the irradiation of sunlight.
2) UV fluorescent ink:
There are two kinds of long wave and short wave, the principle is to add visible fluorescent substances with ultraviolet excitation in the ink, and emit visible light such as red, yellow, green and blue under ultraviolet light irradiation.
3) Infrared fluorescent ink:
A visible fluorescent compound having infrared excitation is added to the ink, and green visible light is emitted under the infrared lamp. Different infrared fluorescent substances have different requirements on infrared spectrum power.
4) Infrared absorption ink:
The infrared absorption material is added to the ink, and an invisible mark or graphic under normal light can be identified under the infrared detector. Due to the different intensity of infrared absorption by the substance, it is required that the infrared detector should have a certain sensitivity to accurately detect its authenticity.
5) Thermochromic ink:
The principle is to use the temperature-sensitive color material microcapsule with temperature change, when the color touched or heated changes, there are three kinds of color reversible, irreversible and memory, a variety of temperature range from low temperature to high temperature.
6) Humidity-sensitive color ink:
The principle is that the color material contains a substance whose color changes with humidity. The feature is that the dry state is colorless, the dripping state becomes colored, and there are two kinds that are reversible and irreversible.
7) Pressure-sensitive color change ink:
The principle is to add special chemical reagent microcapsules to the ink. Colored or invisible graphics printed with this type of ink will undergo a chemical pressure change or a change in the dye of the micro-limb capsule when the hard object or tool is rubbed or pressed, and the existing color and colorlessness There are a variety of colors to color, according to the user's requirements to select the color of the display and design memorization.
8) Angle change color ink:
The principle of anti-counterfeiting is that the colorant uses multilayer interference optical debris. As long as we change the viewing angle of printing, the color will change and the new version will use this technology.
9) magnetic security ink:
Anti-counterfeit principle is that the color material uses (Fe304) and iron oxide (Fe20) and other magnetic substances, and the magnetic signal can be detected and decoded by a magnetic detector; the technical requirement is that the magnetic color material is a needle-like crystal of less than micron level, so that Its size and shape are easily and evenly arranged in the magnetic field. The symbols and numerals with this residual magnetism realize the discrimination function by the friction in the automatic processing device.
10) Anti-printing ink:
The principle is to add a chemical substance to the ink or a substance that has a color reaction. When encountering correction fluids such as erasing spirits, anti-printing shading will appear achromatic or discoloration reactions.
11) Chemical Encryption Ink:
Anti-counterfeit principle is to add specific compounds in the ink. Its anti-counterfeit feature is to display a concealed image or generate fluorescence immediately after applying a decryption chemical reagent within a predetermined range. Different temperatures and pressures have different combinations of encoding and decoding.
12) Intelligent Machine Read Security Ink:
It adopts computer identification, highly variable, and each authentication terminal has anti-counterfeit products and machine encryption. Only when it knows the identity of the seized mark or seal code at the same time, can it use special detection instruments to identify it. The anti-counterfeit principle is to use intelligent anti-counterfeit materials. Denaturation, that is, the security material consists of a variety of variable chemical substances, in which the nature, type, quantity, content, and existing form of the characteristic compound constitute the speciality and personality of the security material. According to these special characteristics and the production of anti-counterfeiting materials and manufactured detection equipment (can be processed by the calculator to give the results, detection of authenticity) to achieve anti-counterfeiting purposes 13) nano inks:
Nanotechnology is a nano-material and emerging high-tech products. Now it has developed rapidly. It has begun to penetrate into various fields and has successfully obtained a lot of high-performance and special-performance application materials. It is no exception in the ink field and no longer depends on it. Instead of chemical pigments, an appropriate volume of nanoparticles is chosen to present different colors. Because some materials are nanoscale, different particle sizes, different colors, or different substances, different colors, so the combination of nanotechnology and anti-counterfeiting technology will open up another vast world of security ink.
14) Multifunctional or comprehensive security ink:
Anti-counterfeit principle is to add other anti-counterfeiting technology in the general anti-counterfeiting ink so as to achieve multiple anti-counterfeiting functions. For example, a laser holographic logo combined with a fluorescent encryption security ink.
(3) The components of the anti-counterfeiting version of the pattern anti-counterfeiting design include the following elements: ground grain, group flower, lace, reduced emblem, latent image, anti-scanning, embossing, and image processing, integrated image, etc. Each function can be used independently. , It is also possible to integrate several functions to form more complex patterns. The principle is the use of special anti-counterfeit software to generate rich lines and patterns, the use of line coloring, thickness, trend with its variability, flexibility and other changes to show different levels and contours, after the design directly out of the CTP printing To achieve a high precision anti-counterfeiting means. Its characteristics of low cost and high anti-counterfeiting performance.
At present, there is an unlocked security system, which is characterized in that the entire picture is composed of lines, which is different from the network point pictures. The picture itself has a good anti-counterfeiting performance, and the real beauty is also the internal factors in the picture. Both positive and negative sides of the film are placed on the image, and two visual effects can be clearly seen. "Anti-counterfeiting" anti-counterfeiting pushes the security of version printing to a higher level, and it makes counterfeiters useless. The pictures they use can be selected according to their own needs.
(D) Rainbow printing, also known as string printing, is the realization of two-color or three-color transition natural color mixing on the same line. The entire line does not have outlets. It is a very good anti-counterfeit technology, used for security shading printing, one printing The line pattern has two or more colors, which makes different parts of a complete pattern have different colors, and the color transformation of lines or images is gradual transition, there is no obvious boundary, like the gradual change of rainbow colors of the sky seven colors, so called Rainbow printing. *** Hundred Dollars *** The background color of the front background gradually transitions from orange to orange red, green and blue, and the second-generation ID card applies this technology.
(5) Barcode anti-counterfeiting Currently, there are only two types of bar codes with anti-counterfeiting functions. One is an invisible bar code (covered implicit bar code, invisible bar code for photochemical processing, invisible bar code printed by invisible ink), and the other is a metal bar code. As the one-dimensional barcode anti-counterfeiting effect is not good, it is easy to be copied by the counterfeiters to promote the emergence of two-dimensional codes, which have the advantages of large information capacity, high reliability, strong security and anti-counterfeiting, easy to manufacture, and low cost, and have begun to be widely used. The metal bar code belongs to the patent monopoly technology established by the State Bureau of Technical Supervision. It can change the inherent information of the bar code according to the user's needs and assign different contents to each metal code. It cannot be deciphered, and the metal bar code is pasted on the surface of the object, not only from the visual Can distinguish between counterfeit products without a metal bar code, but also from the automatic identification of this technology to confirm the internal information to identify, so that law enforcement and consumers are very easy to identify counterfeit and shoddy products. Domestic now has developed a double encryption barcode production process, using two sets of light sources on the reader, the first group of light sources can be read external code, the second group of light sources can be read on the inner code; The outer code is visible to the naked eye and the inner code is invisible to the naked eye. The second set of special light sources must be used for reading. At the same time, there is a certain functional relationship between the outer code and the inner code. Any code that does not meet the function relationship The simple combination of readers does not work, this set of functional relationships can be controlled by the user in the computer's own control; thus ensuring that this double-level confidential barcode can not be copied, even if duplicated two exactly the same code, can not Read by the same reader, because the on-time of the two light sources is controlled by the functional relationship between the two sets of codes, which cannot be controlled by humans to achieve the purpose of anti-counterfeiting; and the internal and external codes can be one-dimensional codes. It can also be a two-dimensional code, which can be a standard code or a non-standard code.
(6) Smart Tags (RFID)
Smart tags, also known as radio frequency tags, use radio frequency identification technology to achieve target identification, item tracking, and information collection through the interaction with readers, data exchange, and management systems. Smart tags are hailed as new anti-counterfeiting technologies in the future. The label employs high-tech anti-counterfeiting methods, has the characteristics of non-replication, multiple encryption, and data security, and has been widely used in industrial production, commodity circulation and other fields, and has become an effective means for commodity management, anti-counterfeiting, and theft prevention.
(7) 3D anti-counterfeiting technology With the huge success of the movie "Avatar" and the 3D craze that has swept through it, 3D anti-counterfeit technology is just under development. The latest version of the US dollar banknote that began circulation this year uses the latest 3D security line technology, which is currently used. A very small number of 3D security lines can be made from photosensitive resin to produce a complete three-dimensional image. This is the “3D security zone†on the right side of the Franklin image of the greenback; with the change in the handheld tilt angle, the American Independence Bell pattern in the bright blue security zone. And 100 words move around. The anti-counterfeit tape is embedded in the banknote instead of printed; DAS launches an RFID tag for anti-counterfeiting 3D imaging technology. The 3D image can directly prove the authenticity of the information and can be combined with the RFID tag to achieve better performance. Anti-counterfeiting effect, if someone wants to peel off the anti-counterfeiting label on the genuine product and put it on the counterfeit product, the image of the 3D effect will be completely destroyed; in addition, there are currently 28 French wine companies adopting the invention of a French electronics company. The 3D anti-counterfeit labels, each anti-counterfeit label has a unique bubble pattern and a serial number, consumers can check the serial number and bubble pattern through the network is consistent, so as to achieve the purpose of anti-counterfeiting (8) biological anti-counterfeiting biological anti-counterfeiting Fingerprint identity anti-counterfeiting identification technology, eye iris identity anti-counterfeiting identification technology, antigen/antibody commodity anti-counterfeiting technology, and DNA commodity anti-counterfeiting technology. Fingerprint identity anti-counterfeiting identification technology and eye iris identity anti-counterfeiting identification technology have been combined with computer blessing systems to become an important means of identification, which has been widely used in many aspects. The anti-anti-counterfeiting technology of antigens and antibodies is actually an anti-counterfeiting technology for biological experiments. Its starting point is to use antibodies to uniquely identify antigens to achieve anti-counterfeiting purposes; DNA anti-counterfeiting technology is also a high-tech biological anti-counterfeiting technology that is currently being “friedâ€. The technique is to extract the DNA molecular fragment signal from a certain organism, and after a certain amount of technical processing, clone out more doses, and then incorporate it into the products to be produced. It can also be made into a product label. On the goods. In this way, every product produced will contain a small amount of DNA coded signs to achieve the purpose of anti-counterfeiting.
(9) Composite anti-counterfeiting compound anti-counterfeiting is the use of two or more anti-counterfeiting technologies combined to enhance the anti-counterfeit effect; for example, using anti-counterfeit fluorescent inks for printing with anti-counterfeiting plates or flocks etc. Bo] or rainbow printing; and if the laser holographic logo combined with fluorescence encryption security ink is on the premise of not damaging the integrity of the laser holographic logo, adding new anti-counterfeiting measures to carry out secondary encryption, thereby enhancing its anti-counterfeiting function. Currently, a secondary encryption comprehensive anti-counterfeiting technology for laser hologram identification has been adopted on the market, ie, a special fluorescein material that can be detected through a certain process is added to the laser hologram identification, and is invisible to the naked eye under sunlight, and special displays are displayed in special instruments. Colored fluorescent graphic. The technology has the characteristics of friction resistance, heat resistance, convenient and accurate detection, and strong anti-counterfeiting, and the production cost is less increased.
(10) “Microcircuit†technology According to the “Popular Science†report of the United States, scientists from Germany and Japan have cooperated to invent a very effective anti-counterfeiting technology: printing aluminum oxide, gold and organic molecules directly on banknotes to form multilayer thin film transistors. In the end, it succeeded in printing 100 thin-film transistor microcircuits on each bill, which can work with only 3V voltage. Such a circuit can easily track the currency flow and verify its authenticity.
(11) The "Banknote to India Technology" project completed by Chinese scientists for the technology of banknote-to-print printing won the first-class National Technology Invention Award of 2010, which invented a banknote-to-print technology that can simultaneously gravure and print on both sides and precisely align it. In the international community, it took the lead in overcoming the century-old difficulties of engraving and gravure printing. This invention met the requirement of “the people are easy to identify and counterfeiters cannot forge†and is unique to China. Its core technology has been in Germany and Japan. The country obtained a patent authorization.
With the development of science and technology and the emergence of various interdisciplinary disciplines, there will inevitably be more effective, economical, practical, and more easily recognizable anti-counterfeit technologies.
(1) Paper security The anti-counterfeiting of paper currently occupies an important position in anti-counterfeiting technology, mainly in the following categories:
Including security line security paper:
It means that a metal or plastic wire is placed in the middle of the paper during the papermaking process. The early use of the wire is a special wire. Now use polyester-type plastic wire, micro-letter safety wire, fluorescent safety wire, etc. The shape is as long as it is a straight line. It is mentioned that the latest 3D security thread technology used in the new US dollar banknotes circulating in 2011 is the “3D security belt†on the right side of the Franklin image of the greenback; The American Independence Bell pattern and 100 words move around. The security tape is embedded in the banknote instead of printed.
Watermark paper:
Refers to papers with embossed, perspective, and touchable images, among which the watermark has three types of laser anti-counterfeiting paper: fixed watermark, semi-fixed watermark, and non-fixed watermark:
It refers to the combination of laser anti-counterfeiting technology and paper to make anti-fake paper. Such as the use of holographic anti-counterfeiting technology and special equipment, the holographic image produced in a specific position in the banknote, improve the security performance of red and blue fiber silk, color dot encryption paper:
It refers to the mixing of red and blue colored fibers or colored pieces (dots) into the pulp during papermaking, or scattering on the surface of the paper before the paper is unfinished, and fluorescent under ultraviolet irradiation, so that the paper is distinguished from the paper itself. Colored fibers.
Chemical Encryption Paper:
It refers to the addition of special compounds or the cloning of certain biological DNA fragments in the pulp when adding in the pulp or when sizing on the surface of the paper. The chemically-encrypted paper can be colored or exhibit electrostatic fluorescence records when coated with specific chemical reagents. paper:
It means that the paper surface is coated with a conductive layer and an insulating layer coating, and the voltage discharged from the needle electrode can be used to damage the insulating layer on the paper surface to form an electrostatic latent image with the conductive layer, so that the developer can adhere to the pattern when it is added. , Then hot melt fixed on the paper to produce a clear pattern.
Optical reading paper:
Refers to the printing paper used in optical readers, for reading text, the number known as OCR, reading special marks called OMR, due to the use of optical absorption or reflection to read, to avoid misunderstanding, to the paper Smoothness, abrasion resistance, cleanliness, etc. have higher requirements.
Magnetic recording paper (MICR paper):
It means that the surface of the paper is coated with a strong magnetic particle powder, and the magnetic ink can be used to print a paper that can be recognized by a computer.
(II) Ink security The current security inks can be divided into eight categories according to their anti-counterfeiting functions.
â–¶Daylight-induced color change ink;
â–¶UV (infrared) excitation fluorescent ink;
â–¶Heat, wet, pressure sensitive inks;
â–¶ Chemical reaction color ink;
â–¶Smart machine reading security ink;
â–¶Multifunctional integrated security ink;
â–¶Nano ink;
â–¶Other special inks Common security inks have the following types:
1) Sunlight-induced color-changing inks:
When it is in use, it can detect the authenticity as long as sunlight; the principle is to add a colorless isomeric organic photosensitive molecule to the ink to produce a certain color under the irradiation of sunlight.
2) UV fluorescent ink:
There are two kinds of long wave and short wave, the principle is to add visible fluorescent substances with ultraviolet excitation in the ink, and emit visible light such as red, yellow, green and blue under ultraviolet light irradiation.
3) Infrared fluorescent ink:
A visible fluorescent compound having infrared excitation is added to the ink, and green visible light is emitted under the infrared lamp. Different infrared fluorescent substances have different requirements on infrared spectrum power.
4) Infrared absorption ink:
The infrared absorption material is added to the ink, and an invisible mark or graphic under normal light can be identified under the infrared detector. Due to the different intensity of infrared absorption by the substance, it is required that the infrared detector should have a certain sensitivity to accurately detect its authenticity.
5) Thermochromic ink:
The principle is to use the temperature-sensitive color material microcapsule with temperature change, when the color touched or heated changes, there are three kinds of color reversible, irreversible and memory, a variety of temperature range from low temperature to high temperature.
6) Humidity-sensitive color ink:
The principle is that the color material contains a substance whose color changes with humidity. The feature is that the dry state is colorless, the dripping state becomes colored, and there are two kinds that are reversible and irreversible.
7) Pressure-sensitive color change ink:
The principle is to add special chemical reagent microcapsules to the ink. Colored or invisible graphics printed with this type of ink will undergo a chemical pressure change or a change in the dye of the micro-limb capsule when the hard object or tool is rubbed or pressed, and the existing color and colorlessness There are a variety of colors to color, according to the user's requirements to select the color of the display and design memorization.
8) Angle change color ink:
The principle of anti-counterfeiting is that the colorant uses multilayer interference optical debris. As long as we change the viewing angle of printing, the color will change and the new version will use this technology.
9) magnetic security ink:
Anti-counterfeit principle is that the color material uses (Fe304) and iron oxide (Fe20) and other magnetic substances, and the magnetic signal can be detected and decoded by a magnetic detector; the technical requirement is that the magnetic color material is a needle-like crystal of less than micron level, so that Its size and shape are easily and evenly arranged in the magnetic field. The symbols and numerals with this residual magnetism realize the discrimination function by the friction in the automatic processing device.
10) Anti-printing ink:
The principle is to add a chemical substance to the ink or a substance that has a color reaction. When encountering correction fluids such as erasing spirits, anti-printing shading will appear achromatic or discoloration reactions.
11) Chemical Encryption Ink:
Anti-counterfeit principle is to add specific compounds in the ink. Its anti-counterfeit feature is to display a concealed image or generate fluorescence immediately after applying a decryption chemical reagent within a predetermined range. Different temperatures and pressures have different combinations of encoding and decoding.
12) Intelligent Machine Read Security Ink:
It adopts computer identification, highly variable, and each authentication terminal has anti-counterfeit products and machine encryption. Only when it knows the identity of the seized mark or seal code at the same time, can it use special detection instruments to identify it. The anti-counterfeit principle is to use intelligent anti-counterfeit materials. Denaturation, that is, the security material consists of a variety of variable chemical substances, in which the nature, type, quantity, content, and existing form of the characteristic compound constitute the speciality and personality of the security material. According to these special characteristics and the production of anti-counterfeiting materials and manufactured detection equipment (can be processed by the calculator to give the results, detection of authenticity) to achieve anti-counterfeiting purposes 13) nano inks:
Nanotechnology is a nano-material and emerging high-tech products. Now it has developed rapidly. It has begun to penetrate into various fields and has successfully obtained a lot of high-performance and special-performance application materials. It is no exception in the ink field and no longer depends on it. Instead of chemical pigments, an appropriate volume of nanoparticles is chosen to present different colors. Because some materials are nanoscale, different particle sizes, different colors, or different substances, different colors, so the combination of nanotechnology and anti-counterfeiting technology will open up another vast world of security ink.
14) Multifunctional or comprehensive security ink:
Anti-counterfeit principle is to add other anti-counterfeiting technology in the general anti-counterfeiting ink so as to achieve multiple anti-counterfeiting functions. For example, a laser holographic logo combined with a fluorescent encryption security ink.
(3) The components of the anti-counterfeiting version of the pattern anti-counterfeiting design include the following elements: ground grain, group flower, lace, reduced emblem, latent image, anti-scanning, embossing, and image processing, integrated image, etc. Each function can be used independently. , It is also possible to integrate several functions to form more complex patterns. The principle is the use of special anti-counterfeit software to generate rich lines and patterns, the use of line coloring, thickness, trend with its variability, flexibility and other changes to show different levels and contours, after the design directly out of the CTP printing To achieve a high precision anti-counterfeiting means. Its characteristics of low cost and high anti-counterfeiting performance.
At present, there is an unlocked security system, which is characterized in that the entire picture is composed of lines, which is different from the network point pictures. The picture itself has a good anti-counterfeiting performance, and the real beauty is also the internal factors in the picture. Both positive and negative sides of the film are placed on the image, and two visual effects can be clearly seen. "Anti-counterfeiting" anti-counterfeiting pushes the security of version printing to a higher level, and it makes counterfeiters useless. The pictures they use can be selected according to their own needs.
(D) Rainbow printing, also known as string printing, is the realization of two-color or three-color transition natural color mixing on the same line. The entire line does not have outlets. It is a very good anti-counterfeit technology, used for security shading printing, one printing The line pattern has two or more colors, which makes different parts of a complete pattern have different colors, and the color transformation of lines or images is gradual transition, there is no obvious boundary, like the gradual change of rainbow colors of the sky seven colors, so called Rainbow printing. *** Hundred Dollars *** The background color of the front background gradually transitions from orange to orange red, green and blue, and the second-generation ID card applies this technology.
(5) Barcode anti-counterfeiting Currently, there are only two types of bar codes with anti-counterfeiting functions. One is an invisible bar code (covered implicit bar code, invisible bar code for photochemical processing, invisible bar code printed by invisible ink), and the other is a metal bar code. As the one-dimensional barcode anti-counterfeiting effect is not good, it is easy to be copied by the counterfeiters to promote the emergence of two-dimensional codes, which have the advantages of large information capacity, high reliability, strong security and anti-counterfeiting, easy to manufacture, and low cost, and have begun to be widely used. The metal bar code belongs to the patent monopoly technology established by the State Bureau of Technical Supervision. It can change the inherent information of the bar code according to the user's needs and assign different contents to each metal code. It cannot be deciphered, and the metal bar code is pasted on the surface of the object, not only from the visual Can distinguish between counterfeit products without a metal bar code, but also from the automatic identification of this technology to confirm the internal information to identify, so that law enforcement and consumers are very easy to identify counterfeit and shoddy products. Domestic now has developed a double encryption barcode production process, using two sets of light sources on the reader, the first group of light sources can be read external code, the second group of light sources can be read on the inner code; The outer code is visible to the naked eye and the inner code is invisible to the naked eye. The second set of special light sources must be used for reading. At the same time, there is a certain functional relationship between the outer code and the inner code. Any code that does not meet the function relationship The simple combination of readers does not work, this set of functional relationships can be controlled by the user in the computer's own control; thus ensuring that this double-level confidential barcode can not be copied, even if duplicated two exactly the same code, can not Read by the same reader, because the on-time of the two light sources is controlled by the functional relationship between the two sets of codes, which cannot be controlled by humans to achieve the purpose of anti-counterfeiting; and the internal and external codes can be one-dimensional codes. It can also be a two-dimensional code, which can be a standard code or a non-standard code.
(6) Smart Tags (RFID)
Smart tags, also known as radio frequency tags, use radio frequency identification technology to achieve target identification, item tracking, and information collection through the interaction with readers, data exchange, and management systems. Smart tags are hailed as new anti-counterfeiting technologies in the future. The label employs high-tech anti-counterfeiting methods, has the characteristics of non-replication, multiple encryption, and data security, and has been widely used in industrial production, commodity circulation and other fields, and has become an effective means for commodity management, anti-counterfeiting, and theft prevention.
(7) 3D anti-counterfeiting technology With the huge success of the movie "Avatar" and the 3D craze that has swept through it, 3D anti-counterfeit technology is just under development. The latest version of the US dollar banknote that began circulation this year uses the latest 3D security line technology, which is currently used. A very small number of 3D security lines can be made from photosensitive resin to produce a complete three-dimensional image. This is the “3D security zone†on the right side of the Franklin image of the greenback; with the change in the handheld tilt angle, the American Independence Bell pattern in the bright blue security zone. And 100 words move around. The anti-counterfeit tape is embedded in the banknote instead of printed; DAS launches an RFID tag for anti-counterfeiting 3D imaging technology. The 3D image can directly prove the authenticity of the information and can be combined with the RFID tag to achieve better performance. Anti-counterfeiting effect, if someone wants to peel off the anti-counterfeiting label on the genuine product and put it on the counterfeit product, the image of the 3D effect will be completely destroyed; in addition, there are currently 28 French wine companies adopting the invention of a French electronics company. The 3D anti-counterfeit labels, each anti-counterfeit label has a unique bubble pattern and a serial number, consumers can check the serial number and bubble pattern through the network is consistent, so as to achieve the purpose of anti-counterfeiting (8) biological anti-counterfeiting biological anti-counterfeiting Fingerprint identity anti-counterfeiting identification technology, eye iris identity anti-counterfeiting identification technology, antigen/antibody commodity anti-counterfeiting technology, and DNA commodity anti-counterfeiting technology. Fingerprint identity anti-counterfeiting identification technology and eye iris identity anti-counterfeiting identification technology have been combined with computer blessing systems to become an important means of identification, which has been widely used in many aspects. The anti-anti-counterfeiting technology of antigens and antibodies is actually an anti-counterfeiting technology for biological experiments. Its starting point is to use antibodies to uniquely identify antigens to achieve anti-counterfeiting purposes; DNA anti-counterfeiting technology is also a high-tech biological anti-counterfeiting technology that is currently being “friedâ€. The technique is to extract the DNA molecular fragment signal from a certain organism, and after a certain amount of technical processing, clone out more doses, and then incorporate it into the products to be produced. It can also be made into a product label. On the goods. In this way, every product produced will contain a small amount of DNA coded signs to achieve the purpose of anti-counterfeiting.
(9) Composite anti-counterfeiting compound anti-counterfeiting is the use of two or more anti-counterfeiting technologies combined to enhance the anti-counterfeit effect; for example, using anti-counterfeit fluorescent inks for printing with anti-counterfeiting plates or flocks etc. Bo] or rainbow printing; and if the laser holographic logo combined with fluorescence encryption security ink is on the premise of not damaging the integrity of the laser holographic logo, adding new anti-counterfeiting measures to carry out secondary encryption, thereby enhancing its anti-counterfeiting function. Currently, a secondary encryption comprehensive anti-counterfeiting technology for laser hologram identification has been adopted on the market, ie, a special fluorescein material that can be detected through a certain process is added to the laser hologram identification, and is invisible to the naked eye under sunlight, and special displays are displayed in special instruments. Colored fluorescent graphic. The technology has the characteristics of friction resistance, heat resistance, convenient and accurate detection, and strong anti-counterfeiting, and the production cost is less increased.
(10) “Microcircuit†technology According to the “Popular Science†report of the United States, scientists from Germany and Japan have cooperated to invent a very effective anti-counterfeiting technology: printing aluminum oxide, gold and organic molecules directly on banknotes to form multilayer thin film transistors. In the end, it succeeded in printing 100 thin-film transistor microcircuits on each bill, which can work with only 3V voltage. Such a circuit can easily track the currency flow and verify its authenticity.
(11) The "Banknote to India Technology" project completed by Chinese scientists for the technology of banknote-to-print printing won the first-class National Technology Invention Award of 2010, which invented a banknote-to-print technology that can simultaneously gravure and print on both sides and precisely align it. In the international community, it took the lead in overcoming the century-old difficulties of engraving and gravure printing. This invention met the requirement of “the people are easy to identify and counterfeiters cannot forge†and is unique to China. Its core technology has been in Germany and Japan. The country obtained a patent authorization.
With the development of science and technology and the emergence of various interdisciplinary disciplines, there will inevitably be more effective, economical, practical, and more easily recognizable anti-counterfeit technologies.
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