CTP platemaking technology (below)

Its large flatbed scanner adopts XY technology, which has functions such as automatic registering, dot copying, and automatic dirt removal. It achieves no loss for characters and outlets in the transmission process and is highly praised by users. So it has sold more than 1400 in the world. Taiwan's CopyDot scanners were honored by the Seybold magazine's Scanning Technology Market Pioneer Award in 1999. At Drupa 2000, Boilerford exhibited the CopyDot large flat-panel scanning series products: EskoScan 3648, 2636, 2024, and 2330. The EskoScan 2330 is a new product that has recently been introduced. It can scan 4 A4 films at the same time, scanning Speed ​​is 25% faster than EskoScan 2024.
At the exhibition, Baoluo Telford also launched the ScanMate F14 series of small platform scanners, which not only have the professional scanner copy function, but also have XY technology, automatic calibration of the original, CopyDot, automatic dirt removal and other functions. This machine is widely used by one machine and is suitable for use by local newspaper printing houses, books and magazines, and commercial printing plants. It has certain advantages in terms of performance and price ratio.
The success of the CopyDot scanner bridges the gap between traditional analog platemaking and digital platemaking, removing barriers to the CTP process. It also facilitates the transfer of information from film storage to electronic media storage.
V. Some issues in domestic development of CTP 1. CTP awareness of issues to promote the CTP process is the traditional analog plate transfer to digital plate making, is a major qualitative leap in prepress technology. At present, the domestic printing industry is mostly waiting and waiting. There are certain objective factors, such as a large one-time investment in CTP equipment (including the existing traditional equipment has been completed, on the CTP, a lot of equipment to be scrapped); plate material to import, cost accounting can pass: personnel quality, system Whether the management can guarantee no mistakes, will not affect the production (such as the newspaper has a problem, the impact is great) and so on. Therefore, if the understanding of CTP is not resolved, it will often be hampered by some objective factors. First of all, we must fully understand the advantages of CTP. Compared with the traditional analog plate making, CTP has obvious advantages. The traditional plate making process has many processes. After separation, the film must be processed by manual imposition, copying, printing, etc. to make the printing plate. There are many processes and intermediate links. There are many human factors, there will inevitably be the accuracy of the layout, the loss of tone levels, color errors and other issues, affecting the quality and efficiency of replication. Using CTP technology, when the original is scanned and the information is input to the computer for processing, the plate can be directly output, the information can be guaranteed to be free from loss, and the laser can directly make the printing plate image, the dot structure is good, and the resistance force is high, so the CTP process can be shortened. Cycle, improve quality, increase efficiency. The second is to understand that CTP is the development direction of prepress and printing technology. CTP technology has matured. Sooner or later, it is the general trend. The third is to understand the impact of promoting the use of CTP on the company, not only to improve quality, shorten the cycle, improve efficiency, improve the competitiveness of the company in the market, but also through the promotion of the use of CTP, the company from the traditional analog plate production model to digital The transformation of the technology production model will promote the improvement of the overall quality of the company. Only by improving the quality of operations personnel and management quality can we achieve a qualitative leap in technological change. Therefore, promoting CTP has far-reaching significance.
2. Plate material issue to not on the CTP? Domestic printing companies are first considering the issue of plate material. The price of imported CTP plates is more expensive than that of domestic ordinary PS plates. The units with large PS plates must consider the cost issue and hope to localize the CTP plates. Now it is gratifying that the relevant state departments have established projects for the production of CTP plates, and started the localization of CTP plates. The Institute of Photographic Chemistry of the Chinese Academy of Sciences, the Department of Chemistry of Beijing Normal University, the Shanghai Institute of Printing Technology, and the Nanyang Second Film Factory have all invested in scientific research to develop various CTP plates. Some scientific research results have been tried out with good results. There is great hope for the localization of CTP plates.
At the same time, it should be noted that imported CTP plate material, with the promotion of the international market CTP and the use of the surface, the price of CTP plate material has dropped significantly. Therefore, the cost of CTP is no longer the situation in previous years.
The type of plate is more, what version? I think we must start from the actual situation of the company. If a newspaper printing company emphasizes the timeliness of newspapers, the speed of plate making should be fast, and the resolution and the resistance to printing should not be required. It is appropriate to use a silver salt diffusion type. Commercial printing and printing of books and periodicals are more complicated. There are different grades of printed products, high-precision products, and general public products. The number of prints is large in volume and small in volume. Cycles and costs have different requirements. For example, the number of printed samples ranging from thousands to 10,000 copies, brochures and the like, a large number of polyester CTP plates were used at the Drupa 2000 exhibition; high quality grades, printed at tens of thousands, with ablation heat Min waterless offset printing is even better. High-volume products with ordinary thermal plate, photosensitive resin plate, silver salt diffusion plate can be. With thermal printing, the dot structure is good, the resistance to printing is high, and the printing stability is good. However, the price of the thermal plate is high, and it is suitable for large-volume, high-quality prints.
3. CTP System Selection Drupa2000 exhibited a variety of CTPs. How exactly? Personally think: depends on the company's own conditions, product structure, production scale, economic strength, the overall quality of the enterprise and a true understanding of the CTP equipment. To prevent blind comparisons, do not be superstitious and seek truth from facts. Such as large newspaper printing companies, many types of color newspapers, printing plate consumption, and in order to grab the time, must be equipped with high-speed automatic CTP system. For small and medium-sized enterprises engaged in commercial printing, the consumption of printing plates is not large, and manual or semi-automatic CTP platesetters are used.
4. We must pay attention to improving the overall quality of the company. CTP is a product of high technology. The process flow of CTP is in full compliance with the trend of digital pre-press networkization. Printing companies need to promote the use of CTP technology sooner or later.
CTP's quality requirements for operators and managers are different from those of traditional copying techniques. The former emphasizes the knowledge structure and needs to understand the application of computer technology, network technology, color management, and prepress and printing technology. Enterprises should make early preparations for the introduction, accumulation, and training of talents in this area. The promotion of CTP will produce a qualitative leap in the production and management of the enterprise. The key to achieving this leap is talent.