Banknotes play an important role in economic circulation and people's daily lives. With the gradual improvement of the quality of banknotes, the anti-counterfeiting measures of banknotes are also changing with each passing day, and the anti-counterfeiting technology used in banknotes also reflects the advanced degree of the development of national anti-counterfeiting technology to a certain extent. Taking China as an example, counterfeit banknotes have never faded out of sight, and HD90 counterfeit banknotes have been panicking for a while. That's our fifth edition of RMB, can it really be forged by criminals? I think that is impossible. If you carefully identify the HD90 counterfeit banknote, you can still easily find its flaws. First of all, from the bank notes, the criminals cannot get the special paper strictly controlled by the state. Banknote printing paper is specially manufactured by the country and has the characteristics of toughness, strong wear resistance, good stiffness, no lint, no breakage, no deformation after washing. Generally, banknotes are made of cotton and hemp and other raw materials after high-temperature cooking. Some countries will also add their own unique products to banknotes to achieve anti-counterfeiting purposes. For example, Japan adds Sanya leather pulp to pulp. In addition to the texture of the paper itself is different from ordinary paper, a part of the color fluorescent fibers are also distributed in the banknote printing paper. The 1999 banknotes of RMB are randomly distributed with red and blue fluorescent fibers, which are clearly visible under ultraviolet light. This technology is also used in US and Canadian banknotes. From the 1885 edition, red and blue colored fiber yarns have been added to US banknote paper. The red and blue colored fibers of the US banknotes from the 1885 edition to the 1928 edition are directionally applied. The red and blue fibers are distributed in the middle of the banknote, forming two narrow strips from top to bottom. The red and blue colored fiber filaments in the 1928 edition and subsequent editions are randomly distributed throughout the banknote. If the red and blue colored fibers need to be observed with ultraviolet light, the watermark on the banknote paper can be observed with the naked eye only by transmitting light. The watermark is a fixed pattern formed by the watermark roller in the papermaking process. Due to the different density of the fibers in the watermark area of ​​the paper, the light transmission and observation can see the patterns with different brightness and strong three-dimensional sense. According to the different positions of the watermark on the paper, it can be divided into full version watermark and fixed watermark. For example, the fourth version of the RMB one-yuan voucher is the full version of the watermark, the 80 and 90 versions are the full version of the ancient coins, and the 96 version is the full version of the five-pointed star (a big four small five-pointed star), and like the ten, twenty, Wu Shiyuan and Hundred Yuan are fixed watermarks. Compared with the full version watermark, the fixed watermark is more difficult to produce because the fixed watermark is accurately positioned on the paper. In addition to the different positions of watermarks, their production levels are also very different. Japan ’s watermarking technology has been deeply researched since the 1950s, and no one can compare it until now. The craftsmanship is superb. The security thread is also an important anti-counterfeiting element on banknotes. The security thread is a special metal thread or polyester plastic thread of different colors, micro-printed thread or fluorescent thread embedded in a specific position of the paper. When the light is observed, a complete or intermittent (window opening) line is buried in the paper base. The shape of the line is generally a straight line, and it can also be made into a wave shape, a sawtooth shape, and the like. The window-type security wire is intermittently exposed on the paper surface. When copying with a copier, the exposed metal wire is copied into an intermittent black line, so it cannot be copied. The safety line can be designed in various colors, and can also be in the same line on a two-color interval. There can also be microtext on the line. For example, the US dollar is a fully buried security line. The security line is a polyester material called Myra. Under ultraviolet light, the security lines of different denominations show different colors, and English and numbers are also printed on the security line. Currency value. The security line of the RMB is window-opening, and some security lines on the window opening are printed with holographic currency values, such as ¥ 50 and RMB100. Kraft Paper Bags,Brown Paper Gift Bags,Brown Kraft Paper Bag,Brown Paper Bags Wholesale JINAN XINSHUNYUAN PACKING CO., LTD , https://www.xsy-packaging.com