After the era of the flexographic printing market experienced only one plate-making system, we now have three options, they are the traditional plate-making system, single-light plate-making system and digital plate-making system. The choice of these systems depends on the quality requirements of the end user.
The traditional plate-making system uses a row of light sources to expose the photosensitive resin plate through a negative film. This is the most widely used plate-making process since the rubber plate is molded. Careful operation can produce high-quality printing plates, but due to the printer settings and the wear of the printing plate, its dot structure is prone to produce more serious dot growth, and it is also difficult to ensure that the small highlight dots obtain the required Print quality.
The single-light plate-making system is a further development based on the traditional plate-making system. As the name implies, it uses a single light source to expose the photosensitive resin plate through the negative film. A single light source can make the printing plate get better dot structure, make the dot more fine, and have more side walls with different angles. As a result, the dot increase value during printing is reduced, and the service life of the printing plate is extended. One of the biggest advantages of this system is that all current negatives can still be used.
Digital imaging is the latest invention of plate-making process. In this process, the laser is irradiated onto a thin mask layer on the photosensitive resin plate for direct imaging. The advantages of this direct plate-making process are twofold. Firstly, because the negative film is no longer used for imaging, finer dots can be obtained; secondly, the plate height of the image part can be lowered to obtain a more solid impression of solid plate printing , Without affecting the printing of the mesh tone image on the combined plate.
Printing ink
We have been using Pantone color systems for many years and have achieved great success. At this stage, some people tried to use a combination of different color inks to increase the printing effect, but it has not been widely used. And now we have begun to put seven-color printing into practical applications. The printing process is first traditional four-color printing, and then another three colors are printed to make the entire image appear brighter. In some printing processes, it has been found that all colors, including spot colors, can be copied from these seven colors, which means that there is no need to fully clean the printing press for color changes. This application mainly depends on the substrate and the image design to be printed, but there are a large number of examples that can prove the practicality of this printing process.
Color management
Due to the use of improved quality plates and optional ink systems, color monitoring and control is becoming increasingly important. A series of published articles on this topic reflect that the color performance of the final print is extremely important of.
There are many ways to measure the density and spectral value, some have become independent auxiliary tools of the printing press, and some are combined on the printing press. It can detect the printing on the printing press from the printing press to the plate making. Control the entire process of printing. Which method you use depends on how much control you want for the entire printing process. It is now possible to transfer the tonal value to the printing point in Togo. Even if there is no print sample to check, the color of the printed product can be guaranteed to be consistent during the spectral analysis.
The above points are to draw everyone's attention. That is to say, there are many new technologies that make enterprises more powerful, but on the other hand, it should be noted that continuous investment in new technologies requires a large amount of capital, and the risks involved are also huge. Therefore, it is very urgent to carefully evaluate new technologies before making the right choices, and always keep up with the possible technological development level. Obviously, not investing in new technology will mean backwardness, and investing in new technology will bring risks to the enterprise. Therefore, which new technologies are suitable for which types of enterprises must ultimately be determined by the enterprises themselves, because risks and opportunities always coexist.
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