Existing plate making techniques are based on the principle of photographic imaging, using photosensitive materials for exposure. With the different photosensitive properties of photosensitive materials, there are different requirements for the plate making environment, but almost all of them are operated under the darkroom, and the ultra-high-speed newspaper plate-making equipment developed by this project does not need to be protected from light. This article will introduce you to the insulation. Plate making machine.
In general, the reflectivity provided by the plate supplier can only be used as a reference. We need to use the Focus Cal reflect to automatically measure the left, middle and right positions of the plate. The average value obtained is the reflectivity of the plate. This value is not standard, and the reflectivity of different plates is not the same, so it is very important to adjust the reflectivity when replacing the plate with a new plate.
The surface reflectance is used for the machine to detect the edge. Different plates usually have different surface reflectance. If the reflectance is not set correctly, the machine may report an error without being published, so that normal plate making cannot be performed.
CTP technology is the continuation and development of the laser photo-alignment process and the PS plate process. The biggest difference between the sensitization mechanism of the sensitization and the PS plate is that the PS plate exposure uses an ultraviolet spot source. In the printing process, in addition to direct illumination, there are scattered and refracted light, and the loss of light energy is relatively large. The laser light source of the laser plate making system is mostly monochromatic light. Generally, one wavelength or a range of wavelength is selected. This is the laser. The advanced position of the plate making machine.
In addition to the CTP machine, we should also pay attention to the maintenance of the press machine, keep the surface of the plate machine clean, and perform a surface maintenance on the surface of the machine one day. The internal maintenance is carried out under the condition of changing the development, and the developing tank, the water tank, the glue tank and the glue stick are washed. Replace the consideration.
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