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The standard mode is "Format once, output multiple times", ie converting a PostScript file into a device-independent PDF file, and then using the PDF file for all other processing steps, such as the Open Printing Interface (OPI), proofing or Imposition. This is a hot topic of technology in the current workflow. The most important aspect in this regard is to delay as much as possible the conversion of files that are not related to the device into files related to the specific output device. The Extreme architecture (called PDF 1.3 in the industry) introduced by Adobe of the United States and the portable job ticket format for workflow automation are considered as the basis of the above PDF workflow model. Workflow system vendors can add different extensions based on this, such as separating file formats and file content from each other and using digital master files when facing multimedia. It is worth noting that some PDF systems, although running in standard mode, implement digital master files through specific output devices, which limits the use of each file on a certain medium. Some workflow systems available on the market do not use PDF data directly but instead convert PDF data to a different data format. This is not the future direction of development. To know how a veritable PDF workflow system works, it is easy to see the actual application of Agfa's Apogee system and Heidelberg's Prinergy system. Computer Direct Film Technology (CTF)
Industry experts believe that computer-directed film technology will develop faster than computer-to-plate technology (CTP). The types of laser imagesetters currently on the market are numerous, and their suppliers include Agfa and Saturn. Heidelberg recently introduced the Primesetter Imageetter, which not only processes film but also processes Mitsubishi Silver Salt Polyester digital plates with a base material thickness of 0.30 mm. Because of the thickness of this plate is the same as aluminum-based plates, Heidelberg is likely to plan to use aluminum-based plates at Primesetter in order to provide customers with direct computer-based film/computer-to-plate systems. People can not help but ask such an issue that is not unimportant: Can the existing computer direct film system be upgraded to a computer-to-computer system? The Danish Bradford company and its product Image-Maker can answer this question. When investing in photocopying systems, consider new systems that have no impact on the environment. The Dolev-4-Dry system provided by Sailing Angels and the Drysetter system provided by Heidelberg have the advantages of not using chemical reagents and water, and bright room operation. Computer Direct Plate Technology (CTP)
Computer-to-plate technology currently has potential to be tapped. Plate exposure light sources include Argon ion laser (488 nm), HeNe laser (635 nm), FD-Yag laser (532 nm), Thermally sensitive Yag laser (1064 nm), and Blue (violet) diode laser source (400-410 nm). As long as equipment manufacturers can provide the above light sources, any printing companies and prepress companies that purchase CTF or CTP systems from such manufacturers can use the main brands of film and plates currently sold on the market. In this respect, the Danish Baldwin company is particularly worth mentioning. The company acquired Scanview earlier this year and is now able to offer customers a narrow offset CTP system. For example, the DotMate 5080, a B3 polyester version of the CTP system, made its public debut at this drupa exhibition. The thermal CTP system includes Agfa's recently introduced Galileo Talant system and its associated high resolution no-elush plate Mistrel, Galileo Thermal S CTP system and Thermostar p 971 plate; Agfa wide Xcalibur VLF/Highspeed CTP The system uses Thermostar P 970 plates for both systems. Barco, Heidelberg, Saturn and Screen have all introduced their own thermal CTP systems. At this Drupa exhibition, Baoluo Telford exhibited the fastest inner drum CTP system on the market. Purple laser diodes The use of violet laser diodes for exposure processing of CTP systems complies with current technological trends and constitutes another technological hotspot. The Galileo VS and VXT provided by Agfa are CTP systems of this type that can handle Agfa's Lithostar ULtra open-cell exposed silver halide plates. Equipment belonging to this type of CTP system also includes Jorg CTP-Setter, ImageMaker from Baltimore, and Laserstar from Krause. Using a conventional UV offset plate is a very attractive feature of the new CTP system. The Dicon CTP system launched by Baoluofufu is such a device. The system directs ultraviolet light to a light conversion array located below the exposure beam. The length of the beam exceeds the width of the plate. When the plate is exposed, the plate moves under the exposure beam. The plate size is between 400 x 510mm and 825 x 1125mm.
A major problem encountered at this drupa exhibition is whether important subsystems can be used or replaced by new and improved equipment. In this regard, we should look at the systems provided by the Baldwin Corporation that are good at improving equipment. Krause is no exception. According to the specific requirements, it should be possible to flexibly differentiate between thermal imaging equipment and visible light imaging equipment, medium-to-high-level output, and medium-to-long-lived jobs, as well as four-split, split-off and ultra-large-format. Another point: The proofing system is also very important. For the blueprint, Epson (related products are Stylus Pro proofing system), Agfa (related products are Sherp 11, double-sided blueprint) and Polaroid (related products are Pola Proof) have created their own Brand.
At present, the spectral range of 830 nm is considered to be insufficient for the inner drum CTP system to obtain satisfactory exposure quality of the thermal plate because the energy is too low. Therefore, the expensive DF-yag laser with a wavelength of 1064 nm was used instead. Cymbolic Sciences Inc. has brought the industry’s attention to the fact that Cymabolic Sciences’ technicians have successfully solved this problem using wave modulation. Wave modulation technology allows the 830-nm diode element to release enough energy for imaging the inner drum. It is said that this is reflected in the price structure of Cymbolic Sciences.
Speaking of the future development direction of CTP technology, it is likely that such a pattern will emerge: On the one hand, Agfa will avoid leading the position of flushing thermal plate making technology; on the other hand, ordinary plate UV plate making technology will be further developed. So far, Basys has always been a leader in the general plate CTP technology. Recently, Baldwin Corporation also joined in this field. However, the price advantage is likely to be the CTP system equipped with a violet laser. #
Focus on prepress technology hot spots
In recent years, new technologies have emerged in the printing industry. Some are partial technologies, while others are monolithic technologies. The emergence of these new technologies has important implications for improving print quality and improving productivity, including: PDF workflow: