Sun Chemical Breakthrough at Drupa with Increased Line Speeds for Led Curing Chemistry

LED lamp technology is important because it can reduce the complexity of integrating UV curing lamps, can reduce the environmental and health and safety concerns in some applications and also allow use of UV curing technology on heat sensitive substrates.

“We have seen full cure of ink films, including surface cure, in 12 micron ink films when using 365nm and 395nm wavelength lamps,” said Hartley Selman, SunJet UV ink development specialist. “We can demonstrate full curing with energy doses of 30mJ/cm2 and below which allows the system to effectively run faster, which is what our customer base is demanding if LED curing is to become a reality. We have achieved adhesion to PVC, hard plastics and metals with these inks, so they are functional.”