UV LED Inks: The Future of Narrow-web Printing?

Formulation for LED curing

When formulating inks for UV LED curing, the main difference is related to the photoinitiator selection. In free radical inks a mixture of photoinitiators are used to match the wide spread wave lengths of mercury lamps. In UV LED a focused peak at 395 nm requires very careful selection of exactly the right photoinitiators to match the high energy peak.