Regardless of the current state of the offset paper, the adjustment of the offset paper zero is critical. After determining the correct type of offset paper plate, the adjustment of the zero position is carried out with the command. In order to adapt to the different needs of different plates, the adjustment value of the offset paper can be within ±50. However, the long-term adjustment practice proves that if the zero position of the offset paper is stable within ±10, the offset of the offset paper rarely occurs, and the local problem of the offset paper product is reduced a lot, ensuring the zero value of the offset paper in the range of 800-1400. It is normal adjustment. Next, let's take a closer look at which is the best for offset and coated paper.
With the continuous development of computing technology, laser technology, automation technology and the multi-disciplinary integration trend, the level of automatic color matching and color separation plate making of offset paper has been continuously improved, which has played an important role in the development and reform of the national offset printing and dyeing industry. The overall improvement of the modernization and automation level of the offset printing and dyeing industry has brought enormous economic benefits. Although the flexographic thermal offset paper technology has been greatly developed in the past 10 years, the advancement of technology has not stopped, and the pursuit of higher printing quality, faster plate making speed and lower cost in the printing field is There is no end, we look forward to seeing the next leap in offset paper technology.
In recent years, the global offset paper industry has continued to grow and continues to develop in the direction of high quality and colorization. On the one hand, the digitalization and automation of the printing offset paper process are constantly improving. On the other hand, new equipment and new materials for offset paper are constantly being developed. Development has increased industry capacity, reduced product profits, and intensified market competition. In such a large-scale offset paper environment, the trend of large-scale printing equipment and materials has been triggered, making offset paper large-format printing technology an emerging technology system to enhance market competitiveness.
After the calibration of the parameters of the offset paper machine is completed, under the safety yellow light, the standard gray ladder ruler, such as UGRA21 grade gray ladder ruler or Fuji15 grade gray ladder ruler, is closely attached to the test plate with a transparent tape, and is selected. Set an exposure value for exposure, then remove the gray ladder under the safe yellow light, put the test plate into the plate processor for development and rinsing, and then wipe the position of the gray scale on the printing plate with a cotton cloth or a sponge on the developing syrup. If you can erase a lot of tone or even the field, it means that the development is not enough; on the contrary, if only one left and right tone is erased, the development is normal.
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