In the printing production process, sometimes there are ink stains on the cardboard. Many people think that it is the ink smudge caused by the slow drying of the ink or the poor wear resistance of the ink. This is not the case. There are many reasons for the stains on the cardboard, such as mechanical oil leakage, etc. Once the paperboard is produced, there will be oil stains. So the ink is the same.
Leaking ink When the ink leaks, it will directly drop on the pressure roller or printing plate, and then it will be transferred to the front or back side of the cardboard, resulting in smudges on the cardboard. Therefore, it is necessary to check the ink supply system regularly. If ink leakage is found, it needs to be promptly processed and repaired. If not, it will take a long time to form a hard block on the printing stick, resulting in uneven printing pressure. Therefore, ink leakage is a very serious matter for printing, so it is necessary to avoid ink leakage.
Cardboard temperature overheating is prone to problems in the summer. When the board temperature is too high, there will be no logo on the printing, which will also cause the humidity of the water vapor board formed in the equipment to increase, leading to subsequent deinking of the printing. Therefore, the paperboard temperature should not be too high during printing, otherwise it will be deinking and there will be missing prints.
Information Processing: Carton Street
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