The main materials of packaging bags are: PVDC, PE, PA, EVOH, etc., especially PE material, these materials are generally non-polar materials. Based on the low surface energies and wettability of these materials the printing can be blurry, easily removed or doesn’t stick properly.
Thus before printing on the PE Packing Bag, the material should be treated by plasma to improve the surface tension and adhesion that ink/coding can last and wouldn’t come off from the printed material.A plasma contains positive ions, electrons, neutral gas atoms or molecules, UV light and also excited gas atoms and molecules, which can carry a large amount of internal energy (plasmas glow because the light is emitted as these excited neutral particles relax to a lower energy state). All of these species can and do interact with any surface placed in contact with the plasma.
Our PL-5050 Plasma Treatment System is widely used in the package and printing industry. PL-5050 delivers highly effective treatment solutions for conductive, non-conductive and semi-conductive surfaces to improve surface adhesion properties specifically for the upcoming printing and coding processes.This Plasma System treats surfaces with high-speed discharge of ions to clean, etch and functionalize the surfaces. PL-5050 is a plasma surface treater with a rotary nozzle system. It’s treatment width works well on a variety of surfaces. This model is available with four different nozzles.
