On the advantages and problems of CTP direct plate

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Talking about the advantages and problems of CTP direct plate making

the author has worked in the publishing house for more than 20 years, and has experienced the elimination of lead and fire, ushering in the transformation of light and electricity. At present, the prepress plate making CTP technology in printing enterprises has been gradually recognized and used by printing enterprises. A series of work, such as phenanthrene production, plate making and printing, which previously needed to be completed through multiple traditional processes, was simplified to be directly output for plate making after computer processing. It is reported that in Europe, America, Japan and other places where the publishing and printing industry is more mature, the traditional film production process has been eliminated for many years, which cannot be achieved by vertical experiments.) CTP technology has basically completely replaced laser Imagesetter and become the main product of prepress plate making equipment. Their film production equipment has basically changed hands to some countries in the Asia Pacific region, and they have transitioned to the stage of plate making and printing with a higher degree of digitalization. CTP technology has been paid more and more attention by publishing and printing enterprises because it is true, fast, efficient, low error rate, accurate color registration, and gives full play to the advantages of digitalization to greatly reduce the quality problems caused by traditional film manual operation. This technology has greatly improved the quality of printed matter, promoted the efficiency of printing enterprises, and greatly improved the work management and quality of Publishing House staff

from the perspective of publishing houses, the advantages of CTP direct plate making technology

first of all, almost zero error is achieved, and at the same time, film and plate making costs are exempted. The traditional process from film production to plate printing cannot fully restore the creative concept of the designers of the publishing house. It is often that the effect of the PS version from film production to plate printing deviates from the original design. ETP technology can be directly imported into the original document, and plate making can be directly carried out after confirming that it meets the requirements; Thus, human error and process error are directly reduced

etp process is completely processed by computer digitalization, which avoids a series of processing time and costs such as traditional production of phenanthrene, panel and plate printing. At the same time, a single man-machine operation reduces labor and improves efficiency. Second, it can make effective use of modern network technology. When the traditional book typesetting operation modifies the content, the publishing house, typesetting factory and printing factory send the clear samples back and forth manually, while the documents accepted by the ETP system can use the modern network transmission to transmit the documents that need to be modified, which not only improves the timeliness of document transmission, but also reduces the logistics cost between the factory and the community, and provides convenient and efficient technical support for the publishing house, typesetting factory and printing factory. Third, the small storage space has changed the huge floor space required by publishing houses and printing plants to store phenanthrene, and reduced the storage costs of factories and societies. The experiment after ETP publishing found that the final document is easy to save and retain, and can also be burned into a CD for long-term storage by the publishing house, which provides convenience for reprinting in the future. Fourth, some operators did not operate according to the use requirements of the experimental machine. The most important thing in current economic development is to pay attention to the development of low-carbon economy. From the perspective of publishing and printing, the whole process of ETP plate making has greatly promoted paperless, and the use of corresponding films and a large number of chemical raw materials and harmful reagents has been eliminated. 1 experimental machine or heavy parts of this technology The components shall be easy to lift and install, and the effective utilization has played a positive role in the protection of the green environment

the impact of introducing CTP technology and equipment on printing enterprises

1 In view of the process characteristics of ETP, which is suitable for color book printing and requires a certain amount of funds to purchase equipment, and the need to introduce and train a group of high-tech computer operators, it is difficult for some small and medium-sized printing enterprises to introduce and use ETP equipment

2. Due to the high production technology of ETP plates, the cost of plates is higher than that of traditional PS plates. At the same time, ETP plates cannot be reused, so the plate making cost of printing enterprises is also a practical problem. Some domestic printing enterprises took the lead in introducing the fifth generation etep technology and equipment from Germany. The plate uses ordinary PS plate, which reduces the plate cost and improves the exposure and plate making speed, but the early cost of this equipment is large

3. In order to truly ensure that electronic film does not have content deviation and errors in the process of plate making and printing, printing enterprises are required to configure PDF digital process system consistent with the typesetting company from theory to practical application

however, the use of ETP technology is an application of a digital production system. It is a new era technical operation with the overall improvement of personnel quality, the perfect embodiment of the original idea of works, the reduction of consumables, green environmental protection, and the suppression of piracy. It is also a wise choice for enterprises committed to the development of digital printing

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