There was a significant interaction between the substrate, silver ink formulation and the resultant line quality, line topology and
conductivity. On paper substrates, the absorption of binder into the substrate resulted in denser silver packing and higher conductivity for the paste
material. Higher conductivities were obtained on the substrates capable of withstanding higher curing temperatures. On the polymer substrates higher
conductivity could be obtained by lower content silver materials due to the denser particle packing in the cured ink film as a result of its higher solvent/
lower solids components