Analysis of Printing Anti-counterfeiting and Latest Technology
2024-07-14 06:01:29
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 limited single anti-counterfeit means to the current numerous composite 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 new "microcircuit" and Chinese scientists completed the "banknote printing technology", etc., the following brief discussion of these anti-counterfeiting.
(a) Paper security
Paper security still 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 metal 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 is used in the new US dollar banknotes circulating in 2011. It is the “3D security belt†on the right side of Franklin’s head 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 embossed, perspective, touchable images and other paper, which watermark and fixed watermark, semi-fixed watermark and not fixed watermark three
Laser security paper:
It refers to the combination of laser anti-counterfeiting technology and paper to make anti-fake paper. If holographic anti-counterfeiting technology and special equipment are used, the holographic image will be produced at a specific position of the banknote to improve the anti-counterfeit performance
Red and blue fiber, colorful 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 fluoresces under UV irradiation, so that the paper is distinguished from the paper itself. Colored fibers.
Chemical Encryption Paper:
Refers to the addition of special compounds or the cloning of certain biological DNA fragments in the pulp when it is added to the pulp or when the surface of the paper is sizing. The chemically-encrypted paper can develop color or show fluorescence when coated with specific chemical reagents.
Electrostatic recording 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 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 a special marker called OMR, because of 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.
(B) Ink protection
At present, security inks can be divided into eight categories according to their anti-counterfeit functions.
Sunlight inspires color changing inks;
Ultraviolet (infrared) excitation fluorescent ink;
Thermal, wet, pressure sensitive ink
Chemical reaction color ink;
Intelligent machine reading security ink;
Multifunctional comprehensive security ink
Nano ink
Other special inks
(a) Paper security
Paper security still 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 metal 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 is used in the new US dollar banknotes circulating in 2011. It is the “3D security belt†on the right side of Franklin’s head 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 embossed, perspective, touchable images and other paper, which watermark and fixed watermark, semi-fixed watermark and not fixed watermark three
Laser security paper:
It refers to the combination of laser anti-counterfeiting technology and paper to make anti-fake paper. If holographic anti-counterfeiting technology and special equipment are used, the holographic image will be produced at a specific position of the banknote to improve the anti-counterfeit performance
Red and blue fiber, colorful 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 fluoresces under UV irradiation, so that the paper is distinguished from the paper itself. Colored fibers.
Chemical Encryption Paper:
Refers to the addition of special compounds or the cloning of certain biological DNA fragments in the pulp when it is added to the pulp or when the surface of the paper is sizing. The chemically-encrypted paper can develop color or show fluorescence when coated with specific chemical reagents.
Electrostatic recording 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 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 a special marker called OMR, because of 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.
(B) Ink protection
At present, security inks can be divided into eight categories according to their anti-counterfeit functions.
Sunlight inspires color changing inks;
Ultraviolet (infrared) excitation fluorescent ink;
Thermal, wet, pressure sensitive ink
Chemical reaction color ink;
Intelligent machine reading security ink;
Multifunctional comprehensive security ink
Nano ink
Other special inks
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