"Digital printing is the printing process of digitizing pre-press graphics, digitizing printing operations, and digitizing post-press marketing." Although this statement has defined the entire process of printing with numbers, it remains to be questioned whether it is comprehensive. Especially in the digital communication between publishing houses and printing houses, we found that a large number of domestic publishing houses still use the traditional method of producing paper patterns to save PS blueprints; most large-scale printing companies have already introduced advanced CTP In the prepress processing system, the difference between the old and new production modes is increasingly significant. The digital harmonization of the "public interface" between publishing and printing is a major issue that the publishing and printing industry must face urgently. A few days ago, the reporter heard the voice of the printing industry on the issue of public interface between publishing and printing during the interview on digital printing technology.
Printing: CTP requires publishing to adapt to digitization
"The ideal digital printing production process starts with the input of digitized information, and does not require human intervention to complete printing automatically." Wang Demao, executive vice chairman of the China Printing and Equipment Industry Association, told the "China Press and Publication" reporter that with the widespread use of digital and network technologies, especially in the pre-press link, the processing of graphic and image information has been digitized. Process, at the same time, the development of CTP technology also enables the pre-press process to be digitized. Digital technology is being combined with various printing processes and is revolutionizing the printing process. Digital control of the entire printing process is gradually being realized.
Tian Jing, CTP Product Director of Founder Commercial of Peking University, introduced to reporters that the CTP direct plate-making process saves the photo-setting, developing, and rinsing processes compared to the traditional plate-making process. The CTP process brings stable and controllable plate quality, and the utilization rate of printing presses has also increased significantly . From the aspect of improving efficiency, the CTP plate is clean and does not need to be dirty, which saves a lot of preparation time on the machine; the CTP plate registration is accurate, reducing the printing machine overprinting adjustment time; the CTP plate material has a fast ink-water balance and reduces the consumption of a large amount of overprinting paper. In terms of improving the quality, the dots are accurately restored, and the level of the printed products is more abundant. It is also possible to realize the FM network and FM and AM mixed screening, which greatly improves the printing quality. From the perspective of data-based process control, the plate-making process can be directly controlled by data, and printing compensation can be performed at different dot levels to achieve flexible control of the process.
Statistics from reports show that since the application of the CTP technology in 1995, the CTP market has entered a mature stage. As of the end of 2006, more than 30,000 CTP systems have been installed globally. After 10 years of market cultivation in the Chinese CTP market, the annual installation volume is gradually increasing. During this period, it has gone through two stages of development. From 1998 to 2003 was the introduction period of the CTP market, with several to dozens of units installed each year. The volume growth began in 2004, with an annual growth rate of 50%. Especially in 2005 and 2006, the annual installation volume exceeded 200 units. The Chinese CTP market has entered a period of rapid development. The Chinese CTP market will be in the next 8 to 10 years. It is a stage of continuous development.
Despite the voice of the printing industry, a large number of traditional books in the publishing industry still cannot be converted from the already used PS version to digital to meet the requirements of the new printing technology. In addition, the harmony of the new digital editing and printing interface also requires corresponding technical support.
Market: Film-to-digital conversion is a new business opportunity
Some industry insiders have revealed to reporters that there are already similar data service companies overseas, which are specialized in batch converting traditional film data into digital electronic materials to realize the transformation from traditional blue film to digital publishing. Through the transformation of production methods, the management and operation of publishing houses are more convenient and faster, and the topic selection, planning and processing of books are accelerated accordingly.
In view of the situation of publishing houses in China, in order to prevent copyright disputes and the emergence of pirated books, publishing houses basically do not hand over book data to unreliable printing houses or more liquid typesetting companies, but the publishing houses themselves are very It is difficult to mobilize a lot of manpower to deal with the pile of film materials. Therefore, there are no such enterprises in the domestic market, so I have to say that this is a new business opportunity.
Publishing: Adapting to the new interface needs technical support
In fact, for publishing houses, it is not difficult to use computer digital methods for book editing and printing interfaces. "If you can ensure that the effect seen on the computer is consistent with the printing effect of the book, we prefer the computer to the large number of random proofs now," Miss Ren, the planning editor of the Science Press, told reporters that the review process of the press is still On the sample book printed by the typesetting factory. For general books, the process of three review and three school review is required. The first review is the responsibility of the editor in charge of the book, the review is the responsibility of the editorial director, and the final review is the responsibility of the company leader. The back and forth interaction process is prone to problems. The process of editing and reviewing should be extremely cautious. The general production cycle takes two to three months, but by the time the teaching materials are released each year, due to the variety of books and limited manpower, it will take longer. Now that the leaders in the agency have realized these problems, they have established an independent electronic book database, sorted and sorted the books published in recent years, and stored them on the computer in electronic mode, which is safe and convenient for retrieval.
"Our situation is similar to the Science Society, but we have established an e-book database and are trying to operate e-books on the website." Ms. Du, editor of the Light Industry Press, told reporters that the review, editing, and proofreading of the publishing house are basically done on paper patterns or sample books. For the use of CTP in the prepress process, our editors do not understand the detailed operation process. Not to mention the "interface". "If there is a complete operating system that can seamlessly link the editing work with the process of pre-press processing, then the work efficiency will definitely improve a lot, and the probability of errors can be reduced."
Regarding this issue, printing companies also published their own opinions. Liu Feng, a senior engineer at Beijing Xinhua Printing Factory, introduced to reporters that Beijing Xinhua Printing Factory introduced the Founder Changliu Digital Workflow launched by Peking University Founder Electronics Co., Ltd. The process has strong compatibility and business adaptability, and a set of processes is diverse Proofing method. The CTP computer direct plate-making equipment in the factory, combined with the smooth flow system, can meet the requirements of complex printing production, but in the peak season of book printing, especially for those textbooks with short construction periods, it is impossible to start. The publishing house maintains the traditional three-review and three-check on the teaching materials, and each revision and verification must be carried out on the paper pattern, which takes a long time and has low efficiency. "If you can connect the editing system of the publishing house with the pre-press processing of the printing house, it will be a qualitative leap for both the publishing house and the printing house."
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