CTP (computer-to-plate) technology appeared in 1980s. This period is the primary stage of direct plate making technology research. Therefore, neither the plate-making technology nor the plate-making quality is very mature during this period. In the 1990s, equipment manufacturers cooperated closely with printing manufacturers to speed up the research and development of this technology, and reached the level of maturity and industrial application during this period. 1995 Druba printing exhibition, with 42 CTP systems on display. At Drupa 2000, more than 90 direct plate-making system and material manufacturers from all over the world exhibited nearly 100 kinds of products. 1996, among the 65,438+000 largest printing enterprises in the United States, 55.3% adopted CTP system and 28.8% adopted short color digital printing system. China uses CTP technology much later than foreign countries. Yangcheng Evening News1April, 1998, the flat CTP plate-making machine of Aikefa Company and the external drum CTP of Fangshi Optoelectronics were tried out in some sections of New Express.

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