Anti counterfeiting ink technology in the printing

Anti counterfeiting ink technology in stamp printing

as we all know, stamps are different from general products or trademarks. With the development of the horizontal tensile testing machine during the period, it is both a negotiable security and a work of art. Once the pattern color of the stamp design manuscript is determined, it cannot be changed; Moreover, there is already a lot of content between the square inches, and there is no space for additional words and patterns. If words and patterns are added for anti-counterfeiting, the artistic effect of the overall design of stamps will be destroyed, so anti-counterfeiting of stamps has certain difficulties and limitations. According to the business characteristics of printing more than 100 stamps with different printing processes every year, the Stamp Printing Bureau has developed yellow, magenta and cyan fluorescent encryption anti-counterfeiting inks, which have five varieties: yellow ink glows yellow, yellow ink glows red, red ink glows yellow, red ink glows red, and blue ink glows green. The above five fluorescent inks contain encryption components, so these five anti-counterfeiting inks can play the effects of first-line anti-counterfeiting (public recognition) and second-line anti-counterfeiting (instrument detection for arbitration). At present, photographic intaglio (photocopy) and offset anti-counterfeiting inks have been developed to meet the printing requirements of various patterns of stamps and the printing process requirements of different stamps. For example, the stamp sheetlet "Hukou waterfall of the Yellow River" printed and issued last year was printed with a warm tone of "yellow ink glows red" encrypted gravure ink, and the stamp pattern did not change under normal light; However, under the excitation of UV lamp, the stamp pattern can emit a golden red glow, which plays a role in anti-counterfeiting. From this successful combination, it is not difficult to see that the anti-counterfeiting ink should be organically applied in the design of stamps according to the characteristics of stamp prints, which can not only achieve the purpose of anti-counterfeiting, but also make the prints have a better artistic effect of improving the technology and product level. In the research work of the stamp anti-counterfeiting Department on its verification technology on a regular basis every year, we understand that anti-counterfeiting must achieve "two highs and one strictness", that is, anti-counterfeiting technology should be a high-tech and high investment technology for troubleshooting. Adopting high-tech and increasing the investment of development funds can increase the difficulty of imitation. China's investment in the development of anti-counterfeiting technology for stamp printing is quite large. "Strict" means to strictly manage the anti-counterfeiting technology and anti-counterfeiting materials without outflow and abuse, otherwise the vitality of its anti-counterfeiting technology will be greatly shortened

any anti-counterfeiting technology and anti-counterfeiting materials are not once and for all, especially in today's rapid development of science and technology. Therefore, the research work of stamp anti-counterfeiting technology serving the safe printing of stamps cannot be stopped for a moment

reprinted from: fine chemicals in the 21st century