In the printing process, the continuous blending of half-color images is achieved by the closeness of the dots. According to the CMYK four-color dot mix, it can show more tones. First, amplitude modulation network Amplitude-modulated network is a more common network now used. Its dot relative density is determined, according to the adjustment of the height of the dot to show the color, and...

According to the use of custom lift-up flaps book, it is generally divided into book printing, newspaper printing, advertising printing, banknote printing, map printing, packaging and decoration printing and special printing. Book printing is a kind of printing with large printing quantity and output value. Before the 1970s, letterpress printing was mainly used in type typesets, and after...