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The computer-to-platemaking technology will bring significant social and economic benefits, in an effort to achieve China's printing "threeizations" goal, that is, digital prepress printing, printing color high-speed warp, various automation after printing, and vigorously drawing on foreign advanced technology, promotion and application CTP technology is imperative.
2. Since 95`Drupa, computer platemaking technology has developed rapidly and is maturing. Whether it is flat plate, inner drum or outer drum type direct plate making technology, no matter what kind of outlets, regardless of the use of silver salt version or thermal version, have reached a practical level, in improving the printing quality, yield, reduce costs , improve efficiency and other aspects have great advantages.
According to the United States Printing Technology Foundation (GATF) publishing statistics on the international major printing and publishing technology: CTP technology ranks first in three consecutive years, by the end of 1997, there are about 31 manufacturers in the world to produce 63 different types of direct plate-making equipment. Including the famous Oppennikov-Heidelberger company, Barco, Agfa, Saturn, Bulford, DuPont - Howson. In 1996, 55% of the top 100 printing companies in the United States used the CTP system. To date, more than 2,700 CTP systems have been installed worldwide. According to Seybold, the predecessor magazine of the United States, it is estimated that by the year 2001, 4,000 CTP systems will be assembled around the world. CTP technology has been widely developed in the fields of commercial printing and newspaper printing in many developed countries and has entered the mature stage of practical application. With the decline in the prices of CTP machines and CTP plates, laser imagesetters will gradually be phased out, and the soft version will decrease year by year.
3. In recent years, CTP technology has also developed in China. Since 1997, China Institute of Informatics has held several CTP technical seminars, and for the first time at the 1998 Beijing International Electronic Birth and Multimedia Exhibition. A comprehensive and systematic introduction of various types of CTP equipment has played a positive role in its promotion and application. Following the introduction of a CTP system by Beijing Standard Press in 1996, Yangcheng Evening News was introduced in May 1998. Beijing Daily has completed its experimental application in the near future. There is also a domestic company engaged in the localization of CTP systems and plates. Work, but still remain at the same level of imitation of foreign equipment, there is still a certain distance from the actual application.
CTP system ink jet printing characteristics In recent years, high-tech penetration in the field of printing and publishing performance in the computer direct plate, digital printing and color proofing three aspects, they are known as CTP technology, specifically defined as follows:
1, Computer To Plate (computer direct plate), that is, off-line direct plate making technology;
2, Computer To Press (computer directly to the press), that is, direct machine plate technology;
3, Computer To Paper / Print (computer directly to the paper or printed products), that is, direct printing technology;
4, Computer To Proof (computer direct proofs), that is, color digital proofing.
The CTP system not only has the functions of direct plate making and direct proofing, but also has some features of direct inkjet printing. Its standard components are:
CTP direct plate making machine (EPSON PRO 9000) + special printing software + special consumables It takes Epson styls pro 9000 color inkjet plotter as output device, supplemented by special printing software and special consumables to form a TP system to achieve the performance through the output device. Value-added to meet the special requirements of the printing industry.
1, direct plate machine:
Acceptable special film, special PS plate and plain paper to complete the format output (split version + BO1118mm). Its performance characteristics are as follows: (to be continued) 
Technological Leap from DTP to CTP (I)
The status quo of the CTP system and its development direction 1. CTP (Computer-to-plate computer direct-to-plate) wave has set off in the global printing industry. The era of digital printing has come. The CTP technology has become the inevitable development trend of the prepress industry. The color desktop system (DTP system) that emerged in the mid-1980s has made great progress. It can be said that it is yet another technological revolution in the printing industry.