Development Trend of Direct Plate Printing Press (2)

6. KBA and Saturn's 74 Karat
The 74 Karat press has passed beta testing in eight locations in Europe and the United States. After the latest enhancements, it has now become a truly revolutionary offset production model. This system fully integrates prepress and proofing, and it is impressive that 20 minutes of print preparation that is independent of the operator will result in a suitable sales sheet. This function eventually eliminates the paper that was scrapped at startup. The press is optimized for printing in short and medium prints, and can print up to 10,000 prints per hour on a variety of papers. Automatic plate change, imaging, and cleaning of printing plates are performed during printing press parameter setting for new prints. Without operator intervention, perfect overprinting and matching with proofs are automatically achieved within a few sheets after printing starts. colour. The press runs at full speed within 100 sheets.
Another feature of the 74 Karat press is the Gravuflow Ink System. This inkless, self-correcting inking system can achieve highly predictable results, basically changing the traditional printing preparation process. This is designed in accordance with the elimination of operator intervention, with an emphasis on the color management of the prepress section. The printing press and the inking system can ensure that the printing plate receives a uniform supply of ink without mechanical ghosting. It has nothing to do with image or ink coverage. This is the first time that the actual ink coverage on a sheet-fed offset press has nothing to do with the image. The result is a cleaner and faster print preparation that exactly matches the proofs to the press.
Other notable features of this camera type include the following: The imaging system of the press is a multi-beam laser head system that can image 4 plates in 6 minutes ((differential force is 1524 - 3556 dpi). Waterless offset printing is used. Technology, plate material is Pearldry aluminum version of Presstek, 20 plates per plate (enough for 10 jobs.) Each Gravuflow roller and plate cylinder has an independent temperature control system that produces consistent Foreseeable quality results.The machine can be integrated into various prepress processes, including SaiJee's Brisque process software and third-party RIPs.Replaceable cartridges (2kg per box) and cartridges can be run on the press Replace quickly.
7. Komori Project D
Komori's Project D concept machine introduced at DRUPA 2000 is equipped with Komori's world's first digital imaging system with open format and the printing technology with digital imaging system developed by CreoScitex. Komori chose to split off the platform to launch the on-board digital imaging system because the open format is the world's most popular format, and this format gives the printing plant the best opportunity to expand its business.
Komori used Project D as a printing paradigm for the 21st century and proposed the "three balances" future concept, which is "the balance between printing press and technology, personnel, and the printing environment."
Project D features CreoScitex's new generation of 830mm high-performance, high-reliability thermal heads that can image in 2 minutes with a resolution of 2400dpi/200lpi on a process-free plate. This is a joint development with CreoScitex, using the proven SQUAREspot technology used in the most installed CTP systems.
This digital offset platform uses a specially configured KMS to communicate with the digital imaging system. KMS is also the interface to the external network. The ink ink key is pre-set using the digital process flow of CIP3. The front-end system is connected to the printer via a network. Komori’s color management system and Komori’s High Performance System (KHS) are also connected to this digital offset printing platform for rapid printing preparation.
Project D uses a development-free thermal plate. On Drupa Komori uses products from Kodak Polygram and Agfa.
8. Sakurai's Oliver-474EPII-DI
This fully automatic four-color double-sided direct imaging offset press uses the Presstek DI system, which is the most advanced thermal laser imaging system mentioned above. The most significant feature of the Oliver-474EPII-DI is the integration of DI technology on the original model. Operators familiar with analog printing can operate this machine with minimal operation. In order to save labor, SPC (Automatic Plate Change), QSS (Quick Standby System - Automatic Ink Density Control), SAS (Sakurai Auto Setup System - Sheet Preset System) and CIP3 Workstation are integrated.
The Oliver-474 EPII-DI printer has a plate size of 745 mm x 605 mm, a resolution of 1270/2540 dpi, and an imaging time of 5.3 minutes (2540 dpi).
9. Ryobi 3404DI
The A3-format four-color offset press is equipped with a direct imaging system jointly developed by Ryobi Japan and Presstek USA. It consists of a three-diameter impression cylinder, and two imaging heads are used to simultaneously image the plate. . The paper does not have to be transferred during the four-color printing process, and two four-color printing is completed by rotating the two. The printing speed is 1500-7000 sheets per hour. The footprint of this four-color printer is only half the size of a conventional two-color printer.
Can be imaged with a resolution of 1270dpi or 2540dpi at a maximum of 200lpi. The high-speed plate cylinder rotates at a speed of 18,000 rpm. The imaging time is approximately 5 minutes and 50 seconds at 2540 dpi, and approximately 2 at 1270 dpi. 30 seconds.
Thanks to the Prealdry Plus waterless plate, there is no need for a dampening system. 4 The printing plate is installed in the empty space of the drum (one roll of media in each gap). The automatic plate moving mechanism automatically fixes the plate on the plate cylinder, and the used printing plate is wound on the spool. At this point the automatic printing system automatically performs the entire printing process, from walking, imaging to printing and blanket cleaning.
10. Screen TruePress 544
This four-color digital imaging B3 press is designed by itself, including the plate imaging, inking, and water delivery sections. This design combines an innovative press structure with sophisticated digital imaging using a Mitsubishi Silver DigiPlate plate.
TruePress 544 cuts the plate from the roll in the machine, then covers two cylinders with a B3 format on a roller, and then uses a Katana computer-like direct-to-film (CTF) and FLatRite graphics recorder The imaging technique sequenced two color plates.
The TruePress 544 is equipped with a double plate cylinder and a blanket cylinder, printing two colors at a time on a single diameter impression cylinder. The double-sided printing roller can be used, so TruePress 544 can be used as a two-color double-sided printing press. It evenly inks plates in a banner manner. The mature offset ink and dampening system guarantees the quality of traditional offset printing.
11. Screen TruePress 744
The new TruePress 744 on the DRUPA2000 is a B2-format digital imaging offset press. Due to the characteristics of an ordinary paper-handling device (possible for double-sided printing), two-color printing modules can be used to make two-color, four-color, or more color prints.
For larger plate sizes, screen companies expose two polyester plates in parallel using a fast 120-channel imaging head from Tanto's direct-image film recorder for a few minutes. The plate is then developed directly on the plate cylinder, which is the same as the TruePress 544, and then the next two plates on one platen are imaged.
TruePress 744 is equipped with two sets of multi-roller ink and water delivery systems. The impression cylinder is a single-diameter cylinder, on which the first and second colors are respectively printed in two revolutions of the paper.
In the four-color TruePress 744, the two-color printed sheets have been transferred to the imaging and printing unit of the next double-diameter cylinder. Therefore, it is possible to perform double-sided printing, printing four colors on one side and two colors on the other side after one pass.

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