OBA
OBA is the abbreviation for ” optical brightening agents” or “optical brighteners”.
Lexicon
OBA
Optical brighteners are additives used by paper manufacturers to make a paper look whiter and brighter.
Offset
Offset printing is an indirect printing process.
Indirect means that the printing plate and the substrate do not come into direct contact with each other, but a medium in between is used as a transfer medium.
It is the most widespread printing process.
Online proof
An online proof (correct: contract proof) is an ISO 12647-7 certified test equipment for the graphics industry. It is called online because it is ordered “online”, i.e. via the Internet.