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UV LED curing is rapidly gaining acceptance in the graphics arts industry and could soon be the preferred choice for drying in inkjet printing applications. The question is.... will it ever be effective enough for commercial printing applications in packaging and labelling? This paper sets out to address this question.
The presentation will demonstrate the criticality of optimised photoinitiator combinations for applications switching to LED lamps, and the effect of power output and emission wavelength on cure speed.
In particular we will demonstrate whether current and next generation high power (+15W/cm2) LED lamps are capable of being used in a range of mainstream offset and flexo printing applications, and will discuss the technical, logistical and customer support challenges facing ink companies, press manufacturers and printers during their introduction.
This paper was jointly prepared by Dr. Shaun Herlihy of Sun Chemical & Mr Robert Karsten of Phoseon Technology.
