CTP platesetters also need to be very maintenance-oriented, divided into surface maintenance and internal maintenance. Good surface maintenance is only the initial maintenance of CTP machine maintenance. Internal maintenance is the key. This article describes the internal maintenance of the CTP machine: to clean the edge detection strip; clean the plate roller, this article will introduce you to the multi-function plate 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.
All previous press conferences have attracted leading companies from all over the world to participate in the exhibition, and this year is no exception. The Expo will be divided into printing and packaging equipment display area, publication printing enterprise display area, packaging and decoration printing enterprise display area, printing and packaging consumables and paper display area, advertising equipment and digital printing enterprise display area, imported printing and packaging equipment. There are 6 exhibition areas, such as the exhibition area, with an exhibition area of ​​8,000 square meters and more than 300 exhibitors. Heidelberg, Roland and other world-class equipment and consumables companies once again appeared in Star City. Changsha's local creative design, packaging and printing leading enterprises also competed.
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