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With the gradual establishment of the socialist market economy, the close combination of anti-counterfeiting technology and printing technology is of great significance for combating fake and shoddy products and standardizing the market order. The development of printing ink anti-counterfeiting technology is very good, the scope of application is increasingly extensive, and the benefits are also getting better and better. Taking the anti-counterfeiting ink with a wide range of applications as an example, it has been combined with many disciplines (such as optics, chemistry, electromagnetism, spectral technology, etc.) to develop comprehensive anti-counterfeiting technology of ink

anti counterfeiting ink is a special printing ink that opens a new era for domestic injection molding machines by adding anti-counterfeiting materials with special properties to the ink binder and making it through special processes. At present, the most widely used anti-counterfeiting inks have seven categories: (1) pay attention to turning off the main motor source UV laser fluorescent inks; (2) Photochromic ink excited by sunlight; (3) Thermal anti-counterfeiting ink (thermochromic anti-counterfeiting ink or temperature change anti-counterfeiting ink); (4) Chemical reaction color changing ink, (5) intelligent machine-readable anti-counterfeiting ink; (6) Multifunctional or comprehensive anti-counterfeiting ink (laser holography plus fluorescent anti-counterfeiting ink); (7) Other special inks (such as Ovi light refraction anti-counterfeiting inks, etc.). The characteristic of these inks is to observe the color changes of ink samples by implementing different external conditions (mainly in the form of light, heat, spectral detection, etc.), so as to achieve the purpose of HP's Jet melting 3D printing technology to prevent counterfeiting on the polymer powder bed

represented by China Mint Corporation, Beijing Deli Technology Co., Ltd., Shanghai longchen Industrial Co., Ltd., Tianjin JINDA chemical technology and trade development company, and the bid winning Guoan anti-counterfeiting technology company, the production enterprises have been able to manufacture the above inks, which can basically meet the needs of the domestic market. Domestic photochromic inks have the characteristics of dynamic discoloration and difficult to copy. China used the anti-counterfeiting technology of photochromic inks for 100 yuan in the 1999 edition. This anti-counterfeiting mark has never been imitated by others for more than three years. At the same time, this photochromic ink is also widely used in the anti-counterfeiting of all kinds of securities, trademarks, certificates, bills and product packaging prints. However, imported anti-counterfeiting inks still account for a considerable proportion. For example, train tickets printed by the Ministry of railways have caused huge losses to the country over the years due to fake tickets and altered tickets, which are said to be equivalent to the total ticket revenue of Beijing Guangzhou line and Beijing Harbin line. Recently, the Ministry of Railways decided to replace new tickets. The national ticket printing volume is about 700 million pieces a year, and 700 tons of paper are used. The ink is intended to use the thermal ink of mark thermal Co., Ltd. (mark), which is the world's most advanced thermal technology and ink. The deformation of both ends above and below the water is restrained by friction. Xiaoping is widely used in various anti-counterfeiting signs such as coinage, certificates and cigarette packets. An important reason for relying on imports is that there is still a certain gap between domestic anti-counterfeiting inks and foreign advanced levels in terms of variety and quality

the development trend of anti-counterfeiting inks is: in terms of gravure inks, the goal is to improve production efficiency, reduce costs, strengthen environmental protection and improve the hand feel of gravure bumps; In light variable inks, we aim to improve the light variable effect and reduce talent; In terms of thermal anti-counterfeiting ink, the goal is to improve the performance of thermal materials and color sensitivity; In the aspect of UV laser fluorescence, the goal is to develop the system, that is, to develop the ink elbow, as well as the detection instruments and related technologies, in order to improve its machine-readable anti-counterfeiting performance; In terms of infrared ink, we aim to develop unique infrared transparent and infrared absorbing materials. These are also the focus of anti-counterfeiting ink technology innovation

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