Questions for label die cutting machine
FREQUENTLY AKSED QUESTIONS FOR LABLE DIE CUTTING MACHINE
Die cutting is the important procedure of label production.
Under the label die cutting procedure, we always face some problems, these problems lead the productivity decrease much, even will cause the whole batch product scrapped and occur big lost for enterprise . now Raloyal want to share with you some frequent questions and the settling methods.
Some labels design is as this: will die cut in the printed patterns surface, if this, the die knife cut on the printed surface. Under this situation, will always face a problem: the cutting-edge deinking after die cutting.If it is laminated material, it even has the phenomenon: the lamination film and ink together deinking.
What factors cause this problem to happen?
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Basically it has two reasons :
1:)The print material surface’s adhesion, also called surface energy .Generally speaking ,enable the ink can adhere to the material surface ,the surface energy can not less than 38 dyne ,if want the ink adhesion is better ,the surface energy should be more than 42 dyne .otherwise ,it will have this deinking problem . The material ,whose surface energy less than 38 dyne cannot adhere solidly after printing and then die cutting continuously ,then it will easily occur the problem :die cutting edge deinking .How to solve it ?
Advice：Can change material ,if can not change material ,can try to print one layer ground ink to increase the material’s surface tension ,to ensure not deink when label die cutting ..
?2:)The ink adhesion is not enough.
Some kind of inks have the quality problem itself, or maybe cannot match with the material ,will also cause the ink adhesion is not good after printing . Under such situations, the label edge deinking problems will easily happen.
Advice：We advise the printing factory make the sample test ,if approved ,then can arrange the mass production . if found the adhesion is not enough, then change the ink to solve.
To learn more ,visit us at : www.lyslitter.com