INKJET HEAD, MANUFACTURING METHOD OF NOZZLE PLATE, INKJET DEVICE, AND FORMATION METHOD OF ANTI-REFLECTIVE FILM

摘要

PROBLEM TO BE SOLVED: To provide an inkjet head which has excellent ink repellent properties and is capable of keeping the ink repellent properties for a long time. SOLUTION: The inkjet head is provided with a nozzle plate 1 in which a nozzle 2 is provided and a resin film 3 covering the surface of the nozzle plate 1. The resin film 3 has a pencil hardness of 2H or more, at least the circumferential edge area of the nozzle 2 on the surface of the resin film 3 is a concave and convex surface 32 in which a fine projection having a maximum height of 0.02μm to 2μm is distributed with a distribution density of 0.1 to 20,000 pieces/μm2and the arithmetic average roughness (Ra) of the concave and convex surface 32 is≤10 nm. COPYRIGHT: (C)2009,JPO&INPIT