In the printing design on the plastic film to one side of the case, there is the printing pattern on the winding up of the film by the side of the pressure is bigger, certainly is very easy to cause adhesion.
Therefore, for this kind of print especially pay attention to is not in the volume is too tight.
Take appropriate measures to improve the ink adhesion fastness.
Containing metal powder in the plastic film gravure ink, the ink layer cohesive force is weak, poor adhesion, under the pressure of small is easy to cause adhesion, must pay full attention to.
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