Inkjet printer and printer head

摘要

An inkjet head having an ink flow path communicated with an ink chamber to an inkjet nozzle and having an orifice plate to which the nozzle is formed. An ink-philic layer is formed on the surface of the ink flow path, and an ink repellent layer is formed on the surface of the orifice plate where the nozzle is formed. The ink-philic layer is made of amorphous silica or inorganic polymer of colloidal silica bonded with a polymer of (SiOR), and the ink repellent layer contains a compound having perfluoropolyether chain and alkoxysilane residue as a terminal.