Frequent problems in the process of printing

After the print version, it will be processed. If the temperature of the developer in the plate processor is too low, the processing speed of the plate processor is too fast, the development time will be shortened, the development will be insufficient, and the plate will not be washed cleanly. If the concentration of the developer is not enough, the time for replenishing the developer is adjusted too long and the plate will be insufficiently developed.

The method to eliminate the above failure is to check the developer temperature and development time, and adjust to a reasonable amount of data. When using the developer, the manufacturer will provide the proportion of the recipe and it will be done according to the proportion. But sometimes it can be thickened. The stencil machine should be repaired in time, replace the rubber roller, and regularly clean the crystals in the tank and the pipe wall.

The specific method is: using oxalic acid to circulate the water in the plate processor and effectively remove the dirt, and at the same time the brush roller on the machine must be cleaned and replaced if necessary. In addition, in addition to the dirty process, the operation is not careful, in addition to the lack of dirty fluid, the use of liquid for a short time, in addition to dirty injection failure, in addition to the dirty liquid used in the layout will cause the printing plate dirty.

During the gluing process, a low concentration of glue is used, and the oxidation of the non-graphic part causes the smut of the printing plate. The solution to this problem is: in addition to the dirty note should be used after the cover tight; layout should be fully washed in addition to dirty, glue to increase the concentration of glue, plastic injection should be uniform; after the plastic plate, the layout of the length of the dry After printing.