Speaking of China's four major inventions, I am sure that everyone is familiar with papermaking, compass, gunpowder, and movable type printing. These four inventions have played a key role in the promotion of our later economic and cultural development! Now let's introduce the history of printing.
In the Northern Song Dynasty, Bi Sheng invented the mud type movable mark printing type. He was the first inventor in the world, about 400 years before the German J. Gutenberg type. Since then, foreign countries have developed screen printing equipment. In 1439, Germany's Gutenberg produced a wooden letterpress printing machine. Although the vertical spiral type hand printing machine was simple in structure, it was used for 300 years. In 1812, Germany's König made the first. Taiwan round-pressed letterpress printing machine; in 1847, Hoy in the United States invented the rotary printing press; in 1900, made a six-color rotary printing press; in 1904, the American Rubel invented the offset printing press. Since the 1960s, lithographic offset printing processes with short cycle times and high productivity have begun to develop and develop. Lead alloy letterpress printing has gradually been replaced by lithographic offset printing. Soft letterpress printing, stencil printing, electrostatic printing, inkjet printing, etc. have also been developed in packaging printing and advertising printing.
At present, the development technology of screen printing equipment has been quite mature. Nowadays, all kinds of screen printing equipments use electronic automation to pursue higher production efficiency and provide more profit for printing manufacturers.