Solvent is a technology of printing in injet plotter in which typical water-based ink is replaced with solvent organic based pigment inks. Solvet print can be used on every PCV based background, but it’s particulary used on non-tacky for water-based ink background.
Practical application of solvent prints is in every kind of large format prints which should be resistant to external forces. Solvent ink is high resistant to any kind of external factors including UV and they don’t need to be laminated for that. The only disadvanteg of solvent ink is that, it’s less precise that water-based ink, but that’s not a problem for large format advertisement.