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The invention and development of printing press

The invention and development of printing press

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1812, Germany's Koenig made the first round flatten letterpress printing; 1847, the United States Hoy invention rotary press; in 1900, made of six-color rotary press; in 1904, the United States Rubel invention of offset printing press. The twentieth century, 50 years ago, the traditional letterpress printing process in the printing industry dominated development of the printing press to letterpress printing press-based. But the existence of lead alloy letterpress printing process labor-intensive production cycle length and pollution of the environment shortcomings. From the 60s onwards, with a short cycle, high productivity characteristics of offset printing processes began to rise and development of lead alloy Toppan Printing have been gradually replaced by lithographic offset printing. Soft letterpress printing, hole printing, electrostatic printing, inkjet printing, packaging printing, advertising printing also be developed.