To provide a method and a product improving reproducibility of a contour shape of an antenna pattern formed with conductive ink when manufacturing a base film for an IC tag inlet in a process of using a printing method and attaining efficient and stable printing by preventing short circuiting.

In the base film for a noncontact IC tag inlet having at least a substrate, a liquid-repellent partition for dividing the surface of the substrate into coil-shaped areas, and an antenna made of a conductive film formed inside the area, the partition is made of a liquid-repellent resin provided by printing, and the conductive film is made of a metal particle dispersed ink.