Special anti-counterfeiting printing: often change often new (on)

In recent years, with the continuous development and application of high and new technology, in the printing technology anti-counterfeit, there have been a variety of special printing technology anti-counterfeiting technology, they play an important role in the field of anti-counterfeiting, especially in banknotes, ticket printing and packaging security printing China has a very important role.

Printing Technology

The co-printing technology includes flat printing and multi-process printing. In general, high-end packaging and decoration print design has a large area of ​​color patches, multi-color sequence of continuous tone screen and complex lines, patterns, etc., a single printing technology has brought great difficulties. In order to make the printing and anti-counterfeiting effect is ideal, the use of plano-convex printing anti-counterfeiting technology, that is, the use of letterpress printing machine pressure, the advantages of uniform ink to print a large area of ​​solid color, with offset pressure flat soft graphics rich, strong performance The advantages of printing four-color continuous blending of complex lines, so that you can achieve the advantages of avoiding weaknesses, the effect is very obvious.

If you want to print a package with a large area of ​​real-time spot colors and product photos, you can use Plano-Focus all-print anti-counterfeiting technology to complete. First, a spot color is used to print a spot color, and then a photo of the product is printed using a lithography technique. Because in this process, there is a precision overprint of the lithography and spot color pattern more than the usual four-color offset printing, thus it is required to design a feeding mechanism and an embossing operation protocol on the embossing press with the offset printing delivery mechanism. In order to ensure offset and convex printing accuracy. These requirements objectively improve the difficulty of printing, making it difficult to master the printing process of the entire convex-convex printing, but in fact it allows the counterfeiter not to hold a good anti-counterfeiting effect. For some of the more demanding and more complex prints, flat convex and concave, equal multi-process printing can also be used. In short, the printers are complex and the more difficult printing products are, the better the pseudo effects are.

Multi-color printing technology

Multi-color printing is also called cross-color printing, and it is generally printed by a letterpress printing machine. It is based on the requirements of printing products, after rotating the partition in the ink tank, and then put a variety of hue ink in different partitions. Under the string action of the ink roller, the adjacent inks are mixed and transmitted to the printing plate. With this printing process, multiple colors can be printed at one time and the middle transition is soft. Since it is difficult to see the rotation of the ink tank partition from the print, the amount of ink of different hue inks is hardly discriminated from the prints, so it can also play a certain anti-counterfeiting effect. If a large area of ​​shading is printed on this process, its anti-counterfeiting effect will be more prominent.

Printing Technology

Banknotes or other tickets are part of the pattern printed on the back, and the pattern can be reconstructed into a complete pattern when viewed through the light. Many countries’ banknotes use this security printing technology. To be completely printed, such as the Hong Kong Standard Chartered Bank Hong Kong dollar under the face of the round pattern. Pairs of seals include the D-shaped pattern on the German Mark banknotes and the pattern next to the Braille of Renminbi, and the portrait of the French Franc on the back of the portrait.

Pattern butt printing

Pattern docking is a new process for shading printing. It has two forms. One is a pattern full-page printing. After the currency or ticket is cut to the required size, the original pattern on the shading is incomplete on the edge of the currency or the ticket, but if it is docked by two trimming edges, it can form a complete one. Floral pattern. For example, the technique is based on the shading pattern of RMB 100 yuan in the 1990 edition and the HK$1,000 Hong Kong dollar issued by the Hong Kong Bank of HSBC. The second type is to mark the four sides of the ticket with a hem mark. The mark is folded in half underneath, and the line pattern is exactly the same, such as the Lan Dun banknote.

Multicolor wiring and overprint technology

When more than two colors appear on the same line of the ticket pattern, the discolored wirings are neither separated nor overlapped. To achieve such a precise connection, there must be superb and precise equipment and technology. This kind of printing technology is often used for the printing of banknotes and securities. This former Soviet Union and some countries in Central Europe referred to it as the “Olov technology” wiring technology, and also printed multi-color wiring. In the past, this kind of wiring could only be used for offset printing. In 1957, China developed a flat-panel multi-color wiring printing machine. This machine can accurately complete the docking of four color patterns at a time. In 1960, it was used to print RMB, and it was later created. Gravure printed wiring technology. In addition, on the basis of printing, the same pattern is overprinted with several colors of ink. This is a multicolor printing technique. Multi-color overprint can form a variety of color overlap, so that the colorful pattern patterns, colorful eye-catching. This is a high-precision offset printing technology with good anti-counterfeiting effect.

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