Application of the hottest digital edition technol

Application of digital edition technology in CTP plate making field

the best digital edition first is to use high-quality sanded and anodized aluminum base as the plate base. This technology has been proved from the adoption of the conventional version. For higher quality plates, high-quality electrochemical grit and anodic oxidation treatment can ensure strong printability, stable ink and water balance, and high print quality. It is important to make the performance of the printing machine predictable

the second problem is the apparent coating. Many conventional versions may have only one layer of coating, while digital versions have multiple layers. The chemical elements used in these coatings determine the laser wavelength sensitivity and are suitable for different printing fields. In the 1980s, these high sensitivity plate coating methods began to be studied

the plate coating can undergo physical or chemical changes by laser exposure, and each exposure step is very important for any plate. Previously, CTP suppliers believed that overexposure of thermal plates was impossible, but for all plate suppliers, this assumption is just an assumption. In fact, the thermal version needs precise exposure control in order to achieve the best restoration effect. Just like other types of CTP and conventional versions, the plate manufacturer will recommend using the specified exposure device for the best exposure. High resolution imaging is a very sophisticated technology, which requires strict control. At the same time, the plate making machine and plate material must be stable. Once printers choose their favorite CTP technology and suppliers, they generally will not choose the conventional plate making process

after the plate is correctly imaged, it is developed. For the digital version, there is pre heating before development. Pre heating is often used in photopolymer plate technology, such as Fuji and Agfa photopolymer plates, and also in some thermal plates. Pre heating refers to the use of additional energy (several thousand watts) and additional steps, which are often regarded as the "stage" of image enhancement. Pre heating has not become a problem for plate or equipment sales. For suppliers, the main problem is to ensure the stability and predictability of equipment, and who can meet these conditions will become the winner of the mall. Nowadays, CTP market is blooming, and its purpose is to meet the needs of various printing processes. The thirteen mainstream CTP technologies are silver halide, thermal sensing and photopolymerization, which have been verified and supplied by different manufacturers

the silver halide CTP Version (MPM company or Agfa company) has a printing resistance of 350000 prints or higher. It is popular in the newspaper and commercial CTP market. It has the advantage of high quality. To some extent, it is equivalent to the thermal version, and can also be matched with the new violet laser diode. Silver salt plate is still the digital version technology with the fastest imaging speed and the highest sensitivity, and it is easy to be sensitive to any nearby wavelength. However, silver halide plate manufacturers are not willing to recommend silver salt plates for long-distance printing, nor for UV printing machines. In other words, there is no digital technology that can meet the needs of various fields

the thermal version has high resolution -- this is different from the silver salt version. After baking, the thermal plate can meet the needs of long-distance printing machine or corrosive printing conditions (female UV). Thermal version has been accepted by many printers and can export the guide vane as a static part to meet the needs of the printing industry, but there are also some unsatisfactory aspects. For example, thermal CTP once tried to play a big role in the newspaper market, But in fact, the vast majority of newspaper CTP installations are called "light seeing devices" (or "non thermal" CTP Technology), for a variety of reasons. Fast visible light CTP (plate sensitivity is much faster than thermal version) It means that the fast newspaper CTP equipment is more compatible with silver salt and optical polymer version, but the thermal version is not compatible with purple laser CTP equipment

the photopolymer version is mostly used in the newspaper industry, which is related to the introduction of the new subsidy policy around New Year's day and the catalogue review of new energy vehicles, but it has also achieved some success in some commercial printing fields. In terms of resolution, photopolymer version ranks behind silver salt and thermal version, so photopolymer version is not the best choice for high-quality printing. For example, Agfa's n Jinan tensile testing machine will inevitably have some small problems in the operation process. The new era Gold Testing Instrument Co., Ltd. specializes in introducing you to the technical knowledge you don't know. The highest resolution of 9L optical polymerization version is 1751pi, while the thermal version and silver salt version can image at 2001pi (or higher). Of course, photopolymer edition has won a good reputation in terms of printing resistance and machine work tolerance, which may be the reason why it is popular in the newspaper CTP market. So why is thermosensitive suitable for the newspaper industry? This is related to the advantages of thermal technology: high resolution, the printing process after baking is more than 1 million prints, and it is suitable for manual plate making machines when operated in sunlight. These advantages are attractive, but they are not related to the newspaper industry. So why is thermosensitive popular? Because each CTP technology has certain advantages and. Suitable for a certain printing field, there is no CTP technology that can meet the needs of all printing operations