Efficiently cross-linked with optimal use of energy
In a UV curing process - polymerisation - photoinitiators are activated by intensive UV light and cross-linked within seconds This quickly cures the material and the surface is dry, abrasion-proof and immediately ready for the next processing steps. Inks and coatings also remain permanently scratch-resistant and attractive when they are optimally and sufficiently cured. Wavelength, UV light intensity and dose must be adjusted to the photoinitiators of the ink formulation or coating.
Heraeus Noblelight offers different UV solutions for the pretreatment or curing of inks and coatings. The range includes innovative LED technology, special surface lamps (UVC Cure) or conventional UV medium-pressure lamp systems as well as microwave-powered UV lamp systems. Depending on the curing process, material and coating, ink or paint formulation, the UV radiation is adjusted to the individual process requirements.
The different UV systems emit intensive UV light in the wavelength range of 200 to 400 nanometres. The wavelengths of the lamps are optimised for the photoinitiators of the ink system or coating to achieve efficient and sufficient cross-linking. This enables higher production speeds and improved process reliability. At the end of a curing process, the surface can be processed without much delay and obtains scratch-resistant and durable qualities.