UV screen printing ink for the printing of blow moulded objects, especially cartridges, suitable for substrates made of pre-treated polyethylene (PE), polypropylene (PP), polyamide and other plastic types. Especially for cartridge printing (acrylates, silicone, grease cartridges), we offer an ink series with very good flow and gloss as well as very good chemical resistances to oils, greases, solvents and water. This high gloss UV ink series is very reactive in nature, assuring good curing and adhesion even when printing at high machine speeds. The inks of the 990UV series are constitutionally free from toxic elements and solvents. The inks of this series will exhibit good solvent and water resistance after 12 hours.