Food Packaging Industry: Green Innovation, Smart Future
Printing must be noticed when milk membrane with three points
by：Kolysen
2020-12-15
1, ink ratio should be according to the change of climate change is not appropriate solvent ratio will result in printing ink drying difficult and surface 'false'.
False high dry refers to ink solvent ratio of volatile solvents are volatile, low volatile is not completely volatile, ink was dry crust surface, printing place after a period of time, continue to permeate, residual solvent ink adhesion and decoloring.
2, printing speed and drying oven temperature printing speed cannot too fast, the oven temperature in 30 ~ 40 ℃, so in order to make ink solvent complete curing and volatilization, strengthen the printing ink adhesion fastness.
3, printing workshop environment printing workshop environment must ensure that a certain humidity,
Between 60% ~ 70% is preferred)
To have good ventilation, temperature at 25 ~ 30 ℃ to be beautiful, too dry the environment will cause membrane electrostatic hard to release, too humid conditions can make ink volatile difficult.
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