The Daqing Silver Dollar Exchange Voucher printed by the Printing Bureau of the Daqingdu Branch in 1910 was the first set of engraved intaglio banknotes issued in China. The engraved part was completed by the American engraver Haiqu. The world is widely circulated.
Gravure printing, gravure printing is a traditional way of printing banknotes, the inked part of this printing plate is concave, the ink in the gravure is directly transferred to the paper under strong pressure, and the ink appears on the paper. It is a three-dimensional state, so there is a feeling of unevenness when you touch it by hand.
The group on the paper currency is mainly made by hand-carving, and the exquisite figure of the figure is not only a high-end artwork itself, but also has the function of anti-counterfeiting. Each engraver has different styles and characteristics, which cannot be copied. At present, there are many advanced copying techniques and counterfeiting techniques in the world, and it is still impossible to copy exactly the same banknotes out of hand-carved works. Therefore, hand-carving and gravure printing are still a kind of anti-counterfeiting means used internationally.
One of the most critical aspects of printing banknotes by hand engravers is very difficult. No mistakes are allowed. Hand-carved tools are not knives but pens. The steel plate is slightly softer than ordinary steel plates. When working, a carver must hold a magnifying glass in one hand and a pen in another, and scribble on the steel plate line by line. A little mistake will also give up his previous achievements. Someone counted the number of points and lines on a banknote, and a carver carved a million knives on a banknote.
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