Abstract: Provided is an ink composition, in particular an inkjet ink composition for use in inkjet printing such as drop on demand inkjet printing or continuous inkjet printing, which is suitable for producing codes on non-porous substrates. The ink composition has a C1-6 alcohol solvent, a C3-12 ester solvent, a siloxane surfactant, and a capping resin selected from a rosin resin and a terpene phenolic resin. The ink compositions have short drying times in combination with long decap times and/or good latency.