CIP4 and post-press processing

The popularization and application of high-tech computers and other technologies in the printing field has promoted the rapid development of the printing industry towards digitization, intelligence, and networking. However, post-press processing, which is the development of the bottleneck printing industry, is still lagging behind. As a representative of the application of high-tech, CIP3 has continuously improved and developed through the application of pre-press, printing technology and management over the past few years, and through the integration of JDF, Formed CIP4, committed to the vertical integration of pre-press, printing, and post-press processing, and promoted the development of the printing industry towards a comprehensive digitalization. The following briefly introduces the characteristics of CTP4 and its application in post-press processing.

Main features of CIP4

The application of digitization, automation, intelligence and networking in the printing field can be divided into three fields: pre-press production equipment, printing machine and post-press processing. However, with the high degree of informationization and digitization of the printing process, the exchange and sharing of data have become possible, and the concepts of CIM computer-aided manufacturing and MIS decision resource management system have been introduced into the printing industry. The digital printing process has enabled pre-press, printing, Post-press processing is fully coherent. CIP4 is composed of a number of printing industry suppliers and academic groups. It is committed to formulating a common file exchange and data sharing format to promote and realize the pre-press, printing and post-press integration business strategy alliance. CIP4 is a combination of CIP3 and JDF. CIP3 was initially formed by 15 suppliers of pre-press, printing and post-press processing in February 1995. The CIP3 alliance was mainly dedicated to the development and promotion of pre-press, printing and printing. The vertical integration of post-processing. By October 1999, it had already included 39 suppliers including computer, operating system, software, pre-press, printing, and post-press processing equipment manufacturers. Another large-scale international printing research and development organization. The format developed by the CTP3 alliance has been launched by the relevant manufacturers of the alliance since June 1997. At the Drupa 2000 printing exhibition, almost all printing-related software and hardware suppliers have already supported the CIP3 specification. The initial research and development of JDF was jointly undertaken by the four members of the CIP3 Association (Heidelberg, Manroland, Agfa, Adobe). It tried to combine the content of management information and process information with hardware and software equipment, and considered in addition to CIP3 In addition to the vertical integration sought, it also achieved horizontal integration and tried to integrate it with the Internet. In early 1999, the four major members jointly developed the first version of JDF and established the JDF Alliance. Its purpose is mainly to combine management information, production content and hardware and software equipment, which coincides with the original intention of the CIP3 Association to promote the integration of post-press processing and printing processes.

On July 14, 2000, CIP4 was formally integrated by the CIP3 alliance and the JDF alliance. Its ideal and goal are to include the development of prepress automation, printing press automation, and postpress processing automation. In principle, the content and structure of the CIP3 alliance remain unchanged, but the concept of management process has been added to the CIP3 process, becoming a pre-press, printing, post-press and management integrated cooperation system.

The most significant feature of CIP4 is that it defines the production status of printing jobs. Supporting JDF is also a prerequisite for the digital workflow and printing resource management system to transfer information. When JDF is integrated with CIP3, all intellectual property rights and research and development work are handed over to CIP4. JDF is not only the wisdom of Adobe, Agfa, Heidelberg and Manroland, but also includes major major groups such as CIP4, IFRA, FraunhoferIDF and PRINTTalk. contribution. As a result of these joint efforts, JDF has been recommended as a formal standard after more than a year of application, but only half a year later, JDF has played a role in the development of new products. For example, Heidelberg ’s MetaDimension and Agfa ’s EP series 3 workflows are all adapted to the JDF standard. According to statistics, currently CIP4 members have more than 100 large companies, of which 73% are suppliers, and the remaining 25% are users.

Application of CIP4 in post-press processing

High-tech applications in the field of printing almost always start from pre-press and printing, and post-press processing often lags behind.

The same is true of the application of CTP4 in the printing field. To solve the bottleneck problem of post-press processing, it is to improve the level of automation, intelligence, linkage, diversification and personalization of post-press processing, ensure the stability and reliability of quality, improve quality and efficiency, and make post-press processing suitable for multi-function digital printing . The digital workflow control system has been able to perform digital control of the entire pre-press, printing and post-press production process. Some printing and post-press equipment manufacturers have also developed printing and post-press equipment that can use the CIP4 (or CIP3) system.

Before printing, it can realize document color management, trapping, font, document, image management, layout and generating ICC feature files, and proofing with digital proofing machine. In printing, CIP4 achieves ink volume control (ink expansion and conversion curve), registration control, and color quality control (color color and density measurement) on the printing press. The ink preset data is interpreted and generated by the CIP4 interpreter. After the ink preset software is corrected, it is sent to the control system of the printing press by the data switch to automatically control the amount of ink in each ink zone. After printing, the cutting and binding parameters and information are transmitted to realize the cutting control and binding control of the printed matter.

CTP4 plays a very important role in the process of digital printing today. It enables the exchange and sharing of data, and enables digital printing to run unimpeded between pre-press, printing and post-press processing. For example, the work instructions owned by CIP4 include customer, part name, object content, workpiece requirements, size, cutting, rolling, binding, and even the inking curve that occurs during the work, plus other numbers, page order, collation, mold Cutting and other information can be received online through the information network to obtain correct and sufficient information, even the size, thickness, graphic distribution, cutting, origami, etc. of the device are used before the start of the work, plus the special note bar Claim.

If the pre-press and printing departments are located in two different locations, and the distribution information files on the page are transmitted to the downstream printing plant via the network, as long as the color management CMS data conditions are corrected, uniform consistency can be achieved, and a list of The pre-press printing allows customers to recognize the same sheet, so as to achieve the same goal of accurate color reproduction everywhere, which is easy to convey in the content of CIP4 working documents.

The trend of faster, better and cheaper is the key to ensure the long-term development of the post-press processing industry. In post-press processing, there are not many applications of CIP4 at present, and there are mainly cutting processes. For example, a few years ago, Heidelberg, one of the four members of the CIP4 association (Heidelberg, Manroland, Agfa, Adobe) The Pola Compucut cutting system uses the CIP3 workflow. The complete paper cutting system that connects the best high-speed workflow to all prepress workstations can greatly reduce operating time, reduce costs and labor intensity, and the overall efficiency is separate. More than 200% of the cutting machine, and stable operation, improve control accuracy. In addition, the CIP3 data was extended to the binding machine at that time, and played an important role in actual production. At present, many new folding machines are gradually joining the CIP4 (CIP3) standard. It is foreseeable that in a few years, the CIP4 standard will be widely used in many processes of post-press processing, so that the three major links of pre-press, printing and post-press will be integrated to the greatest extent. Such as the mobile paper feeder that is popular in Europe now, when the printed matter is transferred from the printing press to other processes (such as a folding machine), there is no need to reload the paper on the folding machine. The automatic setting function for standardized jobs is another major feature of modern folding equipment.

For example, the CompuFold software used in Heidelberg ’s DCT2000 controller stores 81 pre-programmed built-in folding schemes. The operator only needs to select the folding scheme, enter the paper specifications, and the controller will do the rest. SFC's AFC-544AKT folding machine stores 100 different folding schemes. Users can choose standard schemes or customize folding schemes. The selected data can also be modified and saved through the touch screen. GBR's SetMatic folding machine has 7 preset folding schemes, and can also accommodate 60 custom folding schemes.

At present, MBO and Heidelberg are leading the way in CIP4 standardization.

MBO's Navigator control system can realize the information transmission between the folding machine and the prepress and printing equipment through the network; MBO's data manager is also an open database management system that can be used for remote access and control, built on the Windows operating platform on. Using the data manager software, the MBO folding machine can be integrated into a workflow compatible with CIP3 / CIP4 and JDF to realize the connection between the computer terminal in the office and multiple folding machines in the bookbinding workshop. Through JDF technology or a dedicated network, the visual control system can also talk to the device and exchange live data and preset data from the MIS system or pre-press link. Its Launched ScenicSoft's UpFront 2.0 software enables users who were originally equipped with Navigator Rapidset 2.0 to directly output post-press processing information.

Now not only most major printing press manufacturers apply this kind of software in ink fountain key control, but also some post-press processing and cutting machines and cutting machines can be automatically set according to CIP3 files, including folding and cutting Automatic positioning and so on. For example, you can receive job setting instructions from Creo SynapseUpFrontplanner typesetting software. This visual control system is the most advanced job monitoring control system in the folding machine.

To realize the CIP4 digital workflow, other conditions are needed, such as a networked environment: to establish network connections between customers, business organizations, and pre-press / print / post-press units. At the same time, within a certain unit, there is also a network connection between the information management system and the production equipment. Manufacturers are required to provide equipment that supports PPF / JDF file transfer and processing, and is equipped with CIP4 interfaces. It is necessary to establish an integrated production system (CIM) and management information system (MIS) to link production equipment with the CIP4 system.

All in all, with the wide application of digitalization, networking and intelligence in the field of printing and post-press processing, it will plug the wings of the development of the printing industry. It can be asserted that the high-tech content will lead the printing industry in the future Intelligent technology.

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