Why Do Coffee Bags Expand？
Printing milk film, must pay attention to these three points
by：Kolysen
2020-12-01
【
What to watch for 】
Now the milk is white film membrane products on the market, black and white film, pearl film, such as high separation membrane, printing ink generally USES polyamide type of ink, it is in many types of ink and polyethylene an affinity, to make the printing does not rub off must be controlled printing process of liquid membrane.
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 & other;
Fake dry & throughout;
。
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 milk film 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 can cause milk membrane membrane electrostatic hard to release, too humid environment will make ink volatile difficult, fastness to decline.
Custom message
Related Products
