Source: SPECIALIST PRINTING WORLDWIDE : ISSUE 4/2017
Gabriele Heller discusses how new measures proposed for the handling of di-isocyanates could affect screen and pad printing
When screen and pad printing applications require high resistance of the printed ink film against external influence (light, weather, chemicals) this can be achieved by using two-component ink systems. The binder of such systems contains a resin that can be cross-linked if a reactive component (hardener) is added. The cross-linking of the system is the reason for higher resistance compared to one-component systems.