Press pressure
In Meiyu days, the paper feed gap must be controlled, and the gap should be controlled within -0.4MM of the cardboard thickness. Because the cardboard itself is relatively soft, if the feed gap is too tight, the cardboard will be crushed, and the subsequent printing pressure must be increased, so that it is easy to cause paste and deinking. Reduce the paper feeding pressure, then the hardness of the paperboard is guaranteed, so that the printing pressure can be reduced, and the clarity of the printing is guaranteed.
Ink
The high viscosity of the ink is also one of the important causes of printing blur and deinking. Therefore, in Meiyutian, the viscosity of the ink must be low to increase the color density of the ink, so that the drying speed of the ink will be accelerated, so as to avoid the printing paste and deinking caused by the ink.
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