Machine-readable offset plate Self-oxidizing dry ink

摘要

The present invention relates to a magnetomechanical-readable oxidative drying field suitable for intaglio printing of secure documents. In particular, the present invention relates to a self-oxidizing dry ink for intaglio printing on a substrate having a viscosity in the range of about 3 to about 60 Pa.s at 40 DEG C and 1000 s ^-1 , said ink comprising a) at least one oxidative drying varnish , b) a plurality of core-shell pigment particles comprising a magnetic core and an outer layer comprised of silver, and c) at least one stabilizer selected from benzotriazole compounds.