The increasing use of low-solvent and solvent-free adhesives requires a higher surface energy than in the past. For this reason, placement of a corona treatment inline to the lamination process is becoming more and more prevalent.
Treated material for lamination is often stored for some time before use. During storage, the surface energy decreases because waxes slip-agents diffuse to the outer surface and cover the treated surface.
A relatively low dose then restores the surface energy achieved during the initial film production. For this reason compact corona treatment stations can be installed even in high-speed laminating machines.