| 摘要 |
A method for manufacturing an ink jet head, which is provided with a discharge port member having discharge ports (6) arranged for discharging ink, comprises the step of forming the discharge port member by a first photosensitive resin layer (4), and a second photosensitive resin layer (5) having water-repellency, which is laminated on the first photosensitive resin layer, and the step of giving pattern-exposure and development to these layers for the formation of a structure having the portion where both the first photosensitive resin layer and the second photosensitive resin layers are removed, and the portion (7) where only the second photosensitive resin layer is removed. With this method, the water-repellent area and non-water-repellent area can be provided for the nozzle surface, hence making it possible to form on the nozzle surface of an ink jet head the water-repellent area and hydrophilic area in exact positioning precision without increasing the number of processing steps. <IMAGE> |
