Printing ink, use of printing ink, article and method for manufacturing an article

摘要

The invention relates to a printing ink for printing optical structures on a substrate by means of an ink-jet printer, wherein the printing ink is at least partially transparent for optical light in the range between 380 and 780 nanometres, wherein the printing ink comprises a dynamic viscosity between 5 and 100 millipascal-seconds substantially at 25° C and wherein the printing ink comprises a surface tension of at least 30 millinewton per metre substantially at 25° C.