LED CURABLE INKJET INKS HAVING UV ABSORBERS, AND ASSOCIATED SYSTEMS AND PROCESSES

摘要

Enhanced inks, and associated systems and processes are disclosed, wherein one or more enhanced inkjet layers are established in a work piece, i.e. a substrate. One or more of the inks comprise a selective photo absorber that allows UV curing, while absorbing incident UV light after production. In some embodiments, the selective photo absorber can be configured to absorb light at wavelengths less than 380 nm, while a photoinitiator in the ink can be activated by light having an average wavelength that is equal to or greater than 380 nm. Incident UVA and UVB light is readily absorbed by the cured enhanced ink layer, thus minimizing deleterious effects such as any of yellowing, loss of gloss, or cracking. The selective photo absorber can be used in one or more layers, and can be used on an outer protective inkjet layer.