The most popular digitization has changed the prin

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Digitalization has changed the printing environment (Part 1)

the rapid popularization of digitalization technology has brought great changes to the printing industry

among them, CTP (computer top late) is the most valued. In particular, the digitization of prepress engineering has reached the state of almost completion

in the field of printing and post printing, due to the combination with prepress engineering, digital based automation has made great progress, and machines and devices that meet the needs of multiple varieties, small batches, short delivery time, high value-added have been introduced one after another. Powerful printing companies have introduced these new technologies, sought to rationalize their operations and improve productivity, and established a posture corresponding to the digital age

expectations for PDF

as a standard format for plate making and printing, PDF is eye-catching. Acrobat4.0j sold by Adobe in the United States and new CID font sold by morizawa in Japan have made considerable progress in the PDF environment in printing. Acrobat4.0j is developed as a new scheme of PDF compilation software "acrobat". It can not only load Japanese fonts, but also send PDF files to remote factories or outsourcing locations for remote printing (with rip and other constraints). New CID font (font for Macintosh) in addition to the CID font that can be loaded into PDF, it can also be equipped with OCF (original composite font) and new CID fonts in one Macintosh, and the font name from the original CID font is changed

as one of the workflow that can promote the digital environment, there is apogee produced by Agfa. It is not limited by the version of OS or application software. It is an open digital workflow based on PDF, which can support all aspects of image integration machine, CTP and digital printing. It is composed of apogee photo, apogee PDF rig and apogee print drive. PRINERGY, jointly developed by Heidelberg and Creo, is characterized by the simplicity and sensitivity of print ready PDF. If the printing company can simply complete the PDF of printing conditions, including color management, overprint, OPI (automatic image exchange function), it can have the shelter of Remote Proofing, and quickly communicate with users, and the flexibility of easy workflow can also be greatly improved. Scitex's briague has become a digital front end at the core of the workflow. It manages and summarizes all data formats from input to output, which is the key to a safe and productive workflow

the digital front-end system valiano of Fujifilm company belongs to a multi-function rip system, which manages various operations required before output and can deal with various input and output formats. It is designed for very smooth output management. Similarly, the cellular plus of workflow Rip is an expanded version of rip processing, which can page number the corresponding page digital data and proofing output from the sub combination. In the final output stage, a non return workflow can be built

communication that affects the form of work

recently, the most striking is the communication network. According to the application of communication, the operation forms of printing and plate making have been affected in various ways

scitex's vio can provide comprehensive services from improving application software to user support. Hardware, application software, communication equipment, etc. are prepared by fullpakage, and there is no need to invest in advertising companies, binding companies, printing companies, etc. Ping Syria relies on digital data for information exchange. Once vio's network is used, horizontal collaborative operations can be carried out

vio has three services. The job exchange service uses the job schedule to manage the sending and receiving of manuscripts. Thus, the man hour of managing operation data is greatly saved, no redundant semaphore will occur on the communication line, and the message will be sent to the destination at high speed, which is a service to realize a highly efficient workflow. The remote control item proofing service is to log the mode name of the printer corresponding to PS into the center with paper specification and color matching information (ICC profile), and then output it to the remote. The printing company that plans to output proofing to the other party only needs to make access in the center, select the printing information of the other party, and output it from DTP software instructions. The remote control software proofing service relies on the use of an application software called render view, which has a large capacity and high resolution as shown in Figure 1 When clamping the jaw, the image data is not placed, and it only needs to be accessed in the central database and displayed at a high speed by the web browser on the monitoring screen. It can achieve on-screen correction with customers, and there is no need to transmit the data downstream for correction

wamnet is a communication server NAD (network access device) with UNIX system as its core. Because PP contains unstable structural groups, the hardware and software required for communication constitute a suite program, which can provide a reliable, safe and high-speed communication network system. NAD, communication lines, software and everything can be rented and loaned free of charge, so the initial cost is completely unnecessary. In terms of service, the transmission speed of NAD mode is 400 megabytes per hour. If nad is not set, change the transmission adapter, and use the center server mode of ATM line, it is 400 megabytes per hour. If four familiar customers use ISDN line, they can use wamnet to connect ISDN line service, and reach megabytes per hour. For Internet users who do not join wamnet, There is also a connection service with Internet users who perform data receiving and sending

the communication application software gtrax is jointly developed by Fujifilm, big Japan screen and NTT communication in Japan. It is to unify digital machines and provide a production environment that is not restricted by distance and time among customers, binding companies and plate making and printing companies, so as to realize the labor-saving of production engineering and reduce production costs. Let the process from planning to printing be organically connected with enterprises to realize parallel publishing (relying on the network database, the whole process from planning to printing and publishing is carried out in parallel at the same time)

the eye-catching CTP thermal positive plate

it is DTP that promotes the comprehensive digitization of prepress engineering. Subsequently, the digitization that continued to the printing project was CTP. There is no doubt that the rationalization of plate printing engineering not only shortens the preparation time in the printing process, but also improves the productivity compared with ordinary nylon silk, and also expects to reduce the environmental burden. CTP plates are generally divided into three categories: silver salt, photosensitive resin and heat sensitive, but recently, manufacturers have made great efforts to develop heat sensitive positive plates

thermal printing plates now have the first generation of thermal negative plates and the second generation of thermal positive plates. Heat sensitive negative plates need to be heated and developed. Therefore, in addition to pre heating treatment, thermostats and automatic developers must also be set. In the case of hot plate, pre heating before development is not required. The corresponding operation time is shortened, and the cost of buying a thermostat is saved in detail. In the heat sensitive positive plate, the brillia lh-pi produced by Fujifilm company integrates multi-layer sand mesh technology and high-precision CTP technology. Its performance is first-class, and its characteristic is to meet the needs of open chamber processing

in addition, the electra830 made by Kodak polychrome, which can reproduce high-quality images, was developed to meet the requirements of the CTP version. It has been adopted by 200 platesetters in European and American countries, and officially sold in Japan. Agfa thermo star of AGFA is a point that can be reproduced% with a resolution of 200 lines. It has the same printing characteristics as the PS version of pingxu, and can be used as both digital and analog printing plates on the printing machine. The printing resistance is 150000 sheets, and more than 1million sheets can be obtained after baking

for the CTP version imaging machine, many manufacturers have made great efforts to develop it, such as Japan's big Japanese screen plate light, Fujifilm's Luxel platesetter, Heidelberg's trendsetter, seitex's LOTEM, Agfa's Galileo, Barco's gerber/crescent, etc. Mitsubishi paper company advocates that the tensile testing machine on the image integration machine made by the company can output the real CTP of CBRC digital version after it is suitable for the plastic plate, pipe and profile loading selection system. In addition, new systems that can significantly reduce the working capital of thermosensitive CTP have been developed, such as Kodak polychrome CTP version development processing system produced by Kodak polychrome, and LT-I and lt-g of Mitsubishi Chemical, which can improve the development stability by greatly improving soap

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