PS version 2 in the hottest digitalization process

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PS version in the process of digitalization (II)

since 1998, the varieties of PS versions in the world have changed greatly. Take Polaroid for example, its output reached 18million square meters. In that year, its traditional PS version was only equivalent to 80% of its total output, while the other 20% of its output was thermal version. It is reported that the output of its thermal version is equivalent to 5% of the consumption in the United States. This change is related to the accelerated digitization process of the printing industry. China has made a series of major breakthroughs in the development of high-end new chemical materials and fine chemicals. In the 1990s, desktop color publishing systems have made considerable progress in developed countries. In 1995, at the beginning of the promotion of CTP Technology (computer to plate), due to the immaturity of the supporting laser light source technology, infrared, visible laser, thermal and UV CTP plates coexisted. Even so, CTP technology still occupies an increasing market share in the field of PS version with its strong advantages, such as concentrated exposure energy, automatic control by computer, and very accurate exposure positioning. Up to 2000, the largest printing exhibition in the world, the Luba exhibition, 3500 sets of CTP systems have been running all over the world, and the output of CTP plates in developed countries has accounted for about 1/3 of the total output of PS plates

ctp technology is the inevitable process of digitalization in the printing industry. With the development of computer and laser technology, the traditional laser Imagesetter can be improved into CTP, realizing the direct transfer from computer to printing plate and eliminating intermediate film. The key here is the laser light source and the minimum photosensitive energy required by the PS version. Since 1995, laser technology has made great progress. The CTP system produced abroad can carry different types of laser light sources according to needs, so as to meet the needs of users. For example, Agfa, Greater Japan and Barco have launched a variety of mounted light sources suitable for different plates. For laser light source, stability, reliability, easy system integration, long service life and improving laser energy are the most important. In 2000, a new UV laser light source appeared on the market. It was successfully developed by a Japanese company. According to reports, the service life of the laser light source has reached thousands of hours, and the technology is relatively mature. Once this light source was launched in 2000, it has achieved great effect. It is understood that almost all foreign CTP manufacturers have carried this light source on their own equipment. Improving the sensitivity of PS version has also become the key to the development of PS version. At present, the imaging exposure of CTP plates on the market is mostly less than 100mj/cm2, and there have been many cases reaching μ For j/cm2 high sensitivity CTP plates, the imaging exposure of traditional PS plates in China is usually more than 300mj/cm2

compared with developed countries, China's PS version has a large gap in performance and variety. In 2000, more than 98% of the total output of PS version in China was traditional PS version (about 70's level products). Although the annual consumption of CTP plates has reached more than 5million square meters due to the technological progress of the newspaper industry, due to the lack of corresponding power and mechanism for the development of new products in China, it is unable to manufacture plates suitable for foreign CTPs, and this market has basically lost. From the perspective of traditional PS version, in order to meet the needs of high-quality printing, foreign PS version is developing towards high-performance, mainly in three aspects: high resolution, due to the high-speed development of computing technology. At present, 1500 lines/inch can be made, usually 175 lines/inch in China. The purpose of improving high precision processing is to improve resolution, reduce moire phenomenon, and improve saturation and clarity. At present, the mainstream of high-precision printing abroad is 400 lines/inch, which requires higher particles and resolution of photosensitive materials; High printing resistance

for the newspaper industry, the printing number of a page is often as high as 200000, or even more than 500000. At present, the general printing resistance in China is less than 100000; The direction of high sensitivity will promote the transformation from traditional PS plate to CTP plate. In particular, with the emergence of CTCP technology, the traditional PS version can be used for CTP output, which is undoubtedly a blessing for the traditional PS version. By 2000, in terms of production capacity, China has entered the world's largest PS version production country, with an annual output of more than 1/10 of the world's total output and an output value of 1.5 billion yuan. A number of domestic PS version production bases have been initially formed, basically meeting the needs of the domestic market. However, we must be clear that Obama is the first president of the United States to personally attend and exert influence to help the American manufacturing industry revitalize from the great depression. We can see that China's accession to the WTO in 2001 is a foregone conclusion, and PS publishers all over the world are optimistic about China's big market. At present, various domestic protection policies can no longer protect the existing PS market. If China's PS manufacturing industry wants to maintain the existing domestic market, Only improve their own quality. The first is to change the miniaturization of production. At present, the largest PS version production base in China is Henan erjiao, with an annual production capacity of more than 10million square meters. However, compared with developed countries, its scale and management level, especially its production technology, still have a lot of gaps. Together with Xingguang and Juguang, the annual output of the three domestic PS version manufacturers accounts for 50% of the total domestic output, accounting for half of the country. The inevitable result of miniaturization is decentralization, taking Jixi as an example. The domestic output of 45million square meters is jointly completed by about 30 large and small enterprises, and the average annual production capacity is mostly less than 1.2 million square meters

from the perspective of operation, most enterprises cannot achieve the scale effect, and there is almost no profit space for their own development, resulting in a vicious circle of backward technology, backward equipment and small scale. From the perspective of environmental protection, China has ordered all enterprises harmful to the environment to cancel or transfer, and imposed strict restrictions on the environmental pollution in their production and use. Due to the backward technology, on the one hand, the domestic environmental pollution in the production process cannot be improved as soon as possible, and at the same time, the pollution in the use of products cannot be controlled. The State Economic and Trade Commission has noticed this problem and is revising the statistical content of traditional GDP (gross national product). Blindly pursuing economic growth and ignoring the environment has been a problem in many countries in the past, and its cost is too high. When the environment is rectified after pollution, the cost paid by that time has far exceeded the benefits. (to be continued)

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