Application of CTP technology in the field of modern newspaper printing
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Ctp technology is a general term for offline, in-machine plate-making, and direct-loading technology. Because it simplifies the plate making process, no data is lost, and the dot is sharp, the dot reproducibility is good, the plate making cycle is short, the plate loading time is small, the entire production cycle of the printed product is shortened, and the printing quality is excellent.
The rapid development of technology in the field of newspaper printing is mainly due to its high speed and high quality, which is very suitable for the high timeliness required for newspaper printing. Although the CTP system requires huge investment, the large newspaper group generally has strong bonuses and strong technical force, and can actively accept and adopt new technologies. Therefore, CTP technology has been rapidly developed and applied in some large domestic newspaper groups. According to incomplete statistics, the installed capacity of CTP systems in China's newspaper industry is currently over 40.
In the traditional plate making process, the time required for printing and proofing is long. Only the proofs can be printed and printed after being approved by the customer, and the transportation and management of the film may also adversely affect the printing quality. For newspapers with strong timeliness and need to print off-site, these defects of traditional crafts have become an important factor restricting the development of newspaper printing.
The whole process of CTP process processing and transmitting are digital information, and digital proofing technology is also applied. Therefore, the advantages of CTP technology replacing traditional plate making process are obvious, which simplifies the process, saves publishing time and improves the quality of printed products. The personnel and the site reduce the complexity of equipment maintenance and reduce environmental pollution. According to estimates, CTP technology can save about 70% of prepress time, and the plate making time can be shortened by nearly one hour. At the same time, due to the vitality of the film, the overprinting accuracy and dot quality of the color printing products are reliably guaranteed, and the alignment error is only about 0.002 mm, which solves the problem of manual extraction from time-consuming and poor accuracy, and reduces the boot preparation time.
From the printing effect point of view, the traditional plate making process can only reproduce 5% to 95% of the outlets, while the CTP process can reproduce 2% to 99% of the outlets; the newspapers printed by CTP technology are more delicate, richer and more vivid; Due to the reduction of the intermediate links, the accumulation of quality errors is significantly reduced, and the controllability of quality is significantly enhanced. Because CTP technology reduces the loss of dots on exposed film and plates, it also makes the application of FM networks possible.