UV curing is a photochemical reaction to cure or dry inks, adhesives or coatings using high-intensity UV-A light. Liquid formulations contain a mix of monomer and oligomer and photoinitiators. These photoinitators are activated by the UV light to link monomers & oligomers together and create a corresponding network of polymers. The formulation is then almost instantly cured or hardened in a short period of time.
UV LED lighting systems in the UV-A range (365-405nm, depending on the chemistry) are widely used for high-speed curing processes thanks to great intensity and electrical efficiency. Precise, compact & innovative LED lightings often replace old, huge & energy-consuming thermal curing or mercury lamps in a wide range of industrial processes.