UV Reflector Geometry for Curing Inks and Coatings
Focussed Reflectors:
The first step in understanding reflector performance is to understand the aspect UV lamp output irradiance focussing plays. By simply adjusting the position of the reflectors it is possible to obtain a highly focused energy impingement on the substrate or a broadly diffused output. Generally, a focussed reflector array is used in order to obtain the depth of cure and press speeds common in the printing industry today. This is particularly the case when used with flexographic and screen printing where thick ink coatings along with metallic pigments and varnishes are used. The new XC ‘extreme cure’ reflector from GEW is designed with fully-focussed, dichroic-coated aluminium reflector with integrated clam shell shutters to protect the substrates and is ideally suited to thick film coatings including screen, cationic inks and where ultimate curing is needed at high speeds.
- Companies:
- GEW, Inc.