Application of the hottest thin plate technology i

2022-10-03
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The application of thin plate technology in corrugated board printing (Part 1)

thin plate technology for the corrugated market the post press processing and pre press processing technology of corrugated board printing is in a period of rapid development, and great changes have taken place. Monochrome printing business is less and less, and has gradually disappeared, replaced by the rise of color printing. In addition, flexographic plate making technology has also made great progress, which can effectively control and eliminate the negative impact of plate brushing (Development) inherent in the process itself. Corrugated boxes are made of heavy cardboard after slotting and high-quality surface processing. In order to improve the sales volume of commodities, manufacturers began to work hard on the outer packaging of commodities and strive to improve the attractiveness of the outer packaging of commodities. Therefore, cartons are becoming more and more packaged and commercialized. This is inseparable from the joint efforts and contributions of printing machine manufacturers, corrugated board manufacturers, roller manufacturers, ink manufacturers and plate manufacturers, ouyangming said. In the early 20th century, in order to improve the ability and quality level of corrugated board post press processing. Corrugated board manufacturers began to adopt thin plate technology. Due to the reduction of production costs and cost savings, the use quality of corrugated box products, packaging bags, tapes and other plastic products once made a leap forward. Color halftone printing of corrugated board has become more and more common. The improvement of paperboard production process, the improvement of ink quality and the improvement of roller processing technology have laid a certain foundation for the application of thin plate technology, and effectively promoted the application of thin plate technology in flexographic printing technology. Demand creates the market. In the printing of corrugated board, a wide range of plate systems are used, such as various types of plates, plates with different thicknesses, plates with different substrates, double-sided tapes with different viscosities and cushion materials with different elasticity. They can be matched to form a variety of different combinations. So far, no standard combination scheme has been formulated. Therefore, corrugated board printing manufacturers cannot determine the surface structure of the plate, the pressure absorption performance, the ink transfer performance, etc. Most corrugated board printing manufacturers have tried to test different combinations of different types of plates, tapes, backing materials and inks, and analyzed the results. It can be seen that the standardization of plate material system has become more and more urgent and prominent. Moreover, manufacturers of seamless steel pipe with an inner diameter greater than 30mm are also trying to find the best combination scheme to meet the needs of printing on various paperboard materials. For a long time, corrugated board printing manufacturers have been eager to have a special plate, and look forward to the emergence of this plate. The treatment method of this plate they expect is very simple, does not need any special materials, is suitable for all plate making equipment, and can adapt to the tropics. It will show the subtropical and continental climatic conditions in the concept car jointly developed with GAC Research Institute. Based on this demand, the structure and performance of photosensitive polymers have been greatly improved, and they can also have very stable operating performance under different climatic conditions. Moreover, even after printing for millions of times, the transfer performance of inks can still remain constant. What customers need is plates with higher flexibility and better printability. Therefore, this market demand promotes the development of thin corrugated plates. In addition, the latest digital plate has also become an important issue in corrugated box printing. The new and thinner plate used for corrugated board printing has a black protective layer on its surface, which can be ablated by the laser emitted by CTP equipment. Digital imaging technology is the general trend, so our goal is to follow the trend, develop towards digitalization, and improve the quality of printed matter at the same time. According to the development of market demand, plate suppliers have increased the size of plates. The new thin flexible plate has an additional layer of photopolymer, and the variety is increasingly complete. When printing with soft plates, the ink transfer performance is very good, the consistency is good, and the halftone image effect after printing is very good. Therefore, many printing manufacturers have given up their original hard plates and used soft plates for printing. In this way, the time of plate making is saved, which shortens the whole production cycle and reduces the production cost (including the cost of the material itself and the cost related to plate processing). When printing corrugated board with flexographic printing method, in order to eliminate the influence of printing (Development), it is necessary to adjust the printing pressure slightly higher, which is bound to cause dot expansion. Generally speaking, the larger the deformation of the printing plate, the more serious the point expansion after printing, and affect the quality of the final print. Therefore, only low line images and thick Yin text can be printed, and fine graphics and texts cannot be printed. In view of this situation, in order to reduce the deformation of the printing plate and improve the quality of the final printed matter, people have taken corresponding measures. The first is to use thin plate technology in the printing of corrugated board. Next, the photosensitive polymer is improved to realize the standardization of the plate system. A few years ago, this kind of plate used in corrugated board printing has been put on the market, and has been continuously improved in the exposure tolerance, thus improving the quality of paperboard printing. This makes the thin version technology of corrugated board favored by people

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