CTcP technology is a technology that not only inherits the advantages of CTP, but also can continue to use traditional offset plates. It is to realize the computer direct printing plate on the traditional PS plate material, so that the plate material problem no longer becomes an obstacle to digitization, so that printing companies can easily enter a "digital world". The emergence of CTcP technology, especially at China International All-Print Exhibition in 2003, since CTcP was officially unveiled as a new computer-to-plate technology in China, its rapid development has attracted the attention of people in the plate-making industry, especially small and medium-sized enterprises. It has become another highly competitive direct platemaking technology after thermal CTP and violet laser CTP.
Technical advantages of CTcP
1. Low cost
The first is the low price of plates. Although the price of the CTP plate has dropped somewhat, it still has a large difference in cost from the ordinary PS plate. The CTP plate is about twice that of the CTcP plate, and the price of its processing kit is more than that of the CTcP plate. 3-10 times. Assumption: The consumption of plates in a medium-sized printing factory is: 3000 square meters per month, and the difference between ordinary PS plates and CTP plates is 20 yuan per square meter. The difference between CTcP and CTP plates is 3000 square meters. / Month × 20 yuan / square meter = 60,000 yuan / month, the printing plant can only save 720,000 yuan per year in plate materials.
Secondly, the equipment is simple. The current fifth-generation CTcP has made some major changes on the basis of absorbing the design essence of the fourth-generation products. Using LED laser head, the light energy is higher, the exposure speed is significantly improved, and the life is no longer limited. The most common fifth-generation CTcP machine also has more than 23 plates per hour, and the resolution has been increased from 1500dpi to 2400dpi.
2. Good compatibility with traditional crafts
Since the CTcP system still uses common PS plates that are familiar to printing houses, producers can undoubtedly continue to use the various chemical solutions, developing equipment and punching devices in the original plate-making process to achieve a good plate-making system and printing Machine compatible. For example, in the plate-making stage, the original chemical solution ratio can be kept unchanged; in the printing stage, the original printing pressure continues to be used because of the nature of the plate material. At the same time, the dampening, washing and other processes on the printing machine can be kept unchanged. Therefore, printing companies do not need to worry about various problems caused by changes in printing suitability, and do not need to spend a lot of time and energy to complete the matching work between the plate and the printing machine.
3. Excellent imaging quality
The CTcP technology adopts square pixel imaging, with clear and sharp dot edges. It can reproduce the tone and gradation of an image with a diameter of 17μm and an image with a screen line number of 200 lines / inch. Image copy. The FORGRA Association of Germany has tested the reproducibility of different types of CTP technology, and the results show that the CTcP system and the thermal CTP system have the best reproducibility. With the development of DMD technology, the resolution of CTcP plate-making machine can be further improved, and the imaging quality will be better.
4. Reduce printing debugging time and material loss
With more and more short-lived work in the entire printing industry, changing the plate and debugging on the machine have become regular tasks. Reducing printing and debugging time can save time and cost. CTcP plate making is more accurate than traditional analog plate making, so the waste of fountain solution, paper, ink and other consumables is reduced when debugging on the machine.
5. Simple operation
All UV materials (plates or proofing materials) can be operated in the bright room, which can easily print plates of various specifications and sizes, and can also process multiple plates at the same time, and can be on the same plate multiple times exposure.
6. No need to change the current hardware configuration
CTcP can use data in 1-bit Tiff format, and can use RIP data. It can use conventional developing machines and processing chemicals, without the need for a special network interface and process.
7. Wide supply of consumables
The quality of consumables and processing stability of traditional PS plates are more well-known, and there are still few plate suppliers in CTP plates, the requirements for developing and processing plates are harsh, and storage is unstable.
CTcP: PS version of the new machine
The PS version has always occupied an absolute dominant position in offset printing. Its excellent water and ink affinity, high durability and image reproduction ability, simple operation and stable quality control provide a good guarantee for offset printing. . Especially the domestic PS version production scale and sales system are very mature, PS version has the characteristics of high quality and low price. Therefore, CTcP technology makes the traditional PS version glow with new vitality.
At present, some large-scale plate manufacturers such as Lucky Two Glue and Agfa are working on the development of new high-sensitivity PS plates and have achieved great results; the new version of the new plate P developed by China Printing Science and Technology Institute -4G type high-sensitivity positive PS version, its photosensitive speed is doubled than the PS version currently produced, which shortens the exposure time, improves the efficiency of plate making, and extends the life of the printing machine. The Huaguang UV-N plate has been successfully applied to Wenxin Group's newspaper printing; the Huaguang UV-P plate has been widely used in commercial printing plants such as Changsha, Shenzhen, Dongguan and Kunming. The sensitivity of the two plate materials is not only domestic, but also the most sensitive plate in the world, and the grade meets the requirements of customers for CTcP plate-making time. All these are ready for the CTcP plate-making machine to develop the market in China.
CTcP usage in China
The application in packaging and printing is gratifying. At present, many large and medium-sized packaging and printing companies in China have introduced CTcP technology to complete the design and plate-making of packaging products such as multi-color and spot colors. Among them, the most representative ones are Yonghong Printing Group, Junsi Printing Group and Shanghai Baoyin Color Coated Metal Co., Ltd., which are mainly printed paper packaging printed products such as folding cartons, various clothing tags and signs. Ningbo Sanhe Printing with comprehensive prints. In addition, CTcP technology is also favored by some professional pre-press plate-making companies, such as the largest graphic output in Dongguan, Guangdong, and the plate-making company Yinhe Printing Co., Ltd.
At present, most of CTcP's customers are concentrated in South China and East China. More and more printing companies upgrade from traditional plate-making to computer-based plate-making, and regard CTcP as a secret to save plate-making costs, improve quality, improve efficiency, and increase corporate competitiveness arms. Now the scope of this market is constantly expanding. First, the rapid development of the Bohai Rim Economic Circle, coupled with the promotion of the Olympic concept, has driven the rapid development of the service industry, including the printing industry, and there is strong demand in Beijing and Tianjin. In addition, other provincial capital cities and economic hot spots also showed strong demand.
For now, the traditional plate-making technology is suitable for China's national conditions. It takes into account technological progress and the improvement of efficiency, and has a certain living space in China. Moreover, China is a major country in the production and use of PS versions, so this technology has special significance for China. For printing companies that expect to enter digital computer pre-press processing and plate-making, especially some small and medium-sized enterprises, CTcP is one of the ways that can be considered.
Although the CTcP system entered the market late, but as the price of equipment decreases and the sensitivity of the PS version increases, the advantages of CTcP will become more and more obvious, and it will definitely receive more and more attention and recognition. I believe that the CTcP plate-making machine with the advantages of high quality, high technology and high return rate will surely have a better tomorrow.
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