Abstract: Nowadays, with the rapid development of printing technology and drastic business competition, the CTP technology has become an important topic of research and application in the era of digital printing. It's also a good chance for graphic art to change from the traditional mode to a modern one. CTP can be divided into many types, and each CTP technology had its own advantages and markets. The key technologies of CTP process include files imputing and processing, pages make-up, digital proofing, and color management. Form the angles of plate-making, printing and digital image presetting, the factors which impact dot reproduction results in CTP process were analyzed in this article. The experiment of imaging quality control by CTP process was carried out, and dot gain, solid ink density and relative contrast value were tested, the linear of plate and dot gain compensation were discussed, the optimum proposal of plate –making process was proposed. In the end, the CTP digitalization and standardization were summarized.
