Digital changes the printing environment (2)
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Resolving CTP issues by relying on DDCP
In the process of working with CTP, the problem left is color proofing. The system that is expected as a means of rationalization is DDCP. It is divided into a dot-level layer and a continuous tone type. As a high-end DDCP for reproducing dots, Fujifilm's Final is available. Proof 5600 and Speed Proof 8000. Final Proof corresponds to the B2 specification and can be transferred to regular printing paper. Because of the use of pigments close to printing inks, there is the same level of reproducibility as printing. The Digital Consensus of Xiaoxiliu Company is a DDCP that can directly obtain high quality proofing from digital data. Similarly, the Color Division can reproduce the hue of a similar print and the faithful print dot. Kodak Polychrom Aprolval XP4 is A2 size. From the thin newspaper to the thick corrugated paper on the high-end DDCP of the newspaper. The range is very wide.
Regarding image processing, CDF page number data wants to deal with page unit changes, PDF and intermediate format workflows are used, and the output of the image processor and DDCP is treated. It is advocated that one RIP corresponds to one RIP. Solution.
Rely on CIP3 to share data
Orderers such as high quality, multi-variety, colorization, small batch size, and short delivery time tend to diversify. In order to meet these requirements, a sheet-fed printing press has been developed with a double-sided printing machine as a printing machine that is equipped with a printing plate replacement device, an automated facility such as a pre-inking system. The double-sided machine can complete the printing on both sides of the paper because it can pass the printing machine once, and saves the manpower, reduces the production time, and does not need to reverse the paper and other economic benefits, which makes the automation around the sheet-fed printing machine more substantial. direction.
Recently, the big movement around the printing press is CIP3 (Co-operation of Integration for prepress, press, postpress). According to this, the standard format specified by CIP3 is a PPF (Print Production Format) file. The goal pursued by CIP3-PPF is to share and effectively apply digital data to convert the specified data format to international standard specifications. Once it is used, it can pre-adjust the ink of the printing machine, conform to the automatic color adjustment of the original, and automatically adjust the registration, which can greatly shorten the preparation time before printing.
All manufacturers have announced the CIP3 converter for this purpose, but Heidelberg first took the lead in dealing with the binding project. Japan's Komori Corporation promotes PCCIV as a conversion system for PPF. It was originally based on PPF data as CIP3 conversion software, and was transformed into a unique intermediate format, which in turn was PCCIV. The software is converted to area rate data using ultra-high systems.
Mitsubishi Heavy Industries Co., Ltd. proposed a digital workflow built on a press through CIP3. As for the printing project manufacturer's PPF output, under the basic policy of being able to respond flexibly to everything, the company's main printer corresponding to the main press, the color tone management device, the operating system IPC, etc., are linked and expanded. IPC is a system for centralized management of all intelligence in print operations. For the original mechanical operation, it is loaded with a wealth of functions such as production management, relay management, quality management, network, fault diagnosis, and maintenance support. The OS side adopts Windows NT, and the network adopts the Ether Net method. IPC Server, CTP, etc. are easily connected to the network of peripheral devices such as prepress equipment and tone management systems.
In order to promote the CIP3 solution of CIP, Japan Fujiwara Business Co., Ltd. advocates accepting PPF data by CIP station, so as to simplify the pre-adjustment of ink using PS plate and paper. Some companies use a 4-color double-sided machine with thermal CTP to complete the digital workflow from DTP to printing. Among them, a unique system that can interface with PPF data for CIP3 is constructed. It can adapt to the market opportunity strategy while being able to play a quick start.
Ryobi Imagics also developed the Windows NT version of the ink calculation software for PPF files. This software calculates the area ratio of the printed image while outputting it to the imager on the polyester substrate. The calculated data is recorded in a floppy disk and transferred to the printing tube system of the Ryobi vertical printing machine 3304H or the horizontal printing machine 520HX series, which can complete the pre-adjusting ink opening degree of the ink fountain, thereby greatly shortening the preparation time before printing. Tian Printing Machinery Co., Ltd. also proposed ACC software that transmits CIP3 Server ink key data that accepts PPF. Gwangwentang developed an ink remote control device for CIP3. In the digital workflow proposal with CTP as its core, it has incorporated CIP3, which is a system that effectively uses the offset press.
Digital printing presses appear one after another
For digital presses, Heidelberg is divided into a DI-style system with a layout and a digital printing system with no layout (ie on-demand printing). SpeedMaster74DI is made by Speed The MasterSM74 incorporates a full-color digital offset press with direct imaging technology established by the Quick Master DI46-4. An imaging device equipped on each of the rollers can form an image on the direct imaging plate. Image production is completed in three minutes using Process Piate, which does not require development. From the time of changing the plate, to imaging, printing, and changing the work time, it only takes ten minutes. Minimize the preparation time beforehand, and it can be used for multi-variety and small batch production. Crco's patented Square Spot thermal imaging technology is used on the imaging device to achieve high-quality images with an image resolution of 2400 dpi and a screen line number of 175 lines. 4, 5, 6, color machine can be loaded with PS version or CTP version, can adapt to a variety of work.
The digital imaging system True Press, jointly developed by Dainippon Screen and Sakai Image, is a single-sided two-color machine corresponding to A2. According to the high-speed paper feeding with 2x diameter printing mechanism, 8,000 sheets per side and two-color printing are converted into single-sided monochrome, which is a high-speed printing of 16,000 impressions per hour. A series of operations are automatically completed, eliminating the registration of the printing plate. In addition to the two-color machine, multi-coloring of the four-color machine and the six-color machine is also planned.
Akiyama Printing Press Manufacturing Co., Ltd. is working with Presstek of the United States to develop a loading DI system machine J-DI based on a non-reverse double-sided machine Print. This is where the imaging unit is mounted on the top and bottom (front and back) of all printing units. The plate uses a laser-peelable thermal plate that does not require development. A take-up plate is installed in the plate cylinder, and a take-up method is adopted.
In terms of no layout, there are Toho Ink's E-Print successor Tarbo Stream and the 7-color Ultra Stream. Tarbo Stream is equipped with Japanese 5 fonts, double-sided printing, electronic matching and other special specifications for Japan. Agfa Chroma The Press50i is a front and back 8 side of the A4. Because it uses a roll paper, it can be used for long-length printing. After the RIP corresponding to Postscript3 is loaded, higher processing power and speed are achieved. Sakata Inx's Xeikon DCP500 Expartplus is an expandable, flexible and productive A2 system. It has many functions such as electronic matching, page number after RIP, long-length printing, and adapting to various materials.