A printing process that is used for printing multi-colour backgrounds of the banknotes. Offset presses that print simultaneously the back and frontFacade, face. See Obverse. More of the banknoteA banknote (or ‘bill’ as it is often referred to in the US) is a type of negotiable promissory note, issued by a bank or other licensed authority, payable to the bearer on demand. More with high accuracy enable security features to be incorporated in perfect registerSee See-through register. More. See Dry and Wet offset printingAn indirect lithographic printing process where a flat printing plate prints onto a rubber blanket that transfers the image onto the paper. The printing plate must be moistened with water before it is inked, the water adhering to the non-image area. See Offset printing. More.