Process for the production of an ink jet head

摘要

A process for producing an ink jet head including an ink pathway communicated with a discharging outlet, and an energy generating element for generating energy utilized for discharging ink from said discharging outlet, said process comprising the steps of: providing a substrate provided with said energy generating element thereon; forming a photosensitive layer comprised of a ionizing radiation decomposable photosensitive resin containing a crosslinkable structural unit on said substrate so as to cover said energy generating element disposed on said substrate; subjecting said photosensitive resin layer to crosslinking treatment to convert said photosensitive layer into a crosslinked photosensitive layer; forming a coating resin layer on said crosslinked photosensitive layer; hardening said coating resin layer; irradiating ionizing radiation to said crosslinked photosensitive layer through said hardened coating resin layer to decompose and solubilize said crosslinked photosensitive layer so as to contribute to the formation of said ink pathway; and eluting said crosslinked photosensitive layer irradiated with said ionizing radiation to thereby form said ink pathway communicated with the discharging outlet.