Banknote printing printing methods and technology

Banknote printing printing methods and technology

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There are many types of banknote printing, and most of them are printed using a combination of flat, concave, and convex types. Most of its printing technology is used, such as special printing technologies such as wiring printing, offset printing, double-sided printing, and pattern-to-line printing. What do these printing methods and technologies mean?

Lithography:

Developed from the early lithographs, its platemaking and printing has its own unique personality. At the same time, it is extremely simple in work and low in cost. Therefore, it has been continuously studied and improved by experts in modern times, and has become the most used in printing today. method. In terms of feel, the ticket surface feels smooth and has no concavity and convexity.

Gravure printing:

Gravure-printed molds are carved from steel plates, and the lines on the mold are concave. In the printing, the ink in the lines is transferred to the paper to form a pattern and a pattern protruding from the paper surface, and the three-dimensional effect is very strong. Because the engraving of steel plate is very difficult and difficult to counterfeit, gravure printing is often used for printing materials such as banknotes and certificates, which require high security. Touch with your fingers, with a strong sense of relief.

Toppan Printing:

Relief printing and gravure are just the opposite. The printing plate is convex on the ink, and the pattern on the plate is higher than the plate. When printing, after the ink on the pattern is applied, the pressure of the re-press is transferred, and the ink is transferred from the plate to the surface. . This printing method is called "press printing." Due to differences in the plate making process and materials used, it is divided into movable type, electroformed plate, plano-plate, and rubber plate. Toppan printing products are characterized by neat lines, strong strokes and other features.

Offset printing:

This is a more advanced printing technology, that is, using several colors of ink on the basis of one overprint, and then using several colors of superimposition, thus forming a variety of colors. This printing is generally used on small square decorative patterns. For example, the original blue print on a small square is overprinted with red and becomes purple. If several colors of small squares are superimposed on one another, they look colorful and colorful. This kind of superimposed technology should have higher accuracy.

Double face printing:

When printing banknotes, the front side has precise printing rules, which is also a relatively high printing technology. This method is currently limited to offset and letterpress printing. There are 3 types:

(1) The colored part of the front part of the banknote or the four peripheral lines coincides with the sidelines at the same position on the back side.

(2) Align in a certain part of the bottom line, such as a small circle, triangle, etc., with both sides aligned.

(3) The portrait-to-print process is complicated and technical requirements are higher, such as French francs.

Pattern to line:

This is a new process of shading printing. One is the full version (up, down, left, right) printed to the side, if the two sides of the docking, printed with a 璇-shaped pattern or other shapes of the pattern, can be completely on the line.