Patent ID: 8304177
Filing Date: 2012-11-06
Classification: B41J,G03F

Abstract:
1. A process for producing an ink jet head, comprising: a step of forming an ink flow path pattern whose surface has been subjected to an insolubilization treatment on a substrate having an energy-generating element, a step of applying a flow path forming material that cures by ultraviolet ray irradiation on the ink flow path pattern whose surface has been subjected to the insolubilization treatment and on the substrate to form an ink flow path forming layer, a step of irradiating a part of the ink flow path forming layer with ultraviolet rays to conduct development, thereby forming an ink ejection orifice, and a step of removing the ink flow path pattern whose surface has been subjected to the insolubilization treatment, thereby forming an ink flow path, wherein the step of forming the ink flow path pattern whose surface has been subjected to the insolubilization treatment includes: a step of applying a positive resist containing a resin having at least a phenolic hydroxyl group on the substrate to form a positive resist layer, a step of patterning the positive resist layer to form an ink flow path pattern prior to the insolubilization treatment, a step of applying a coating agent containing a compound having at least two vinyl ether groups on the ink flow path pattern, and a step of heat-treating the ink flow path pattern coated with the coating agent.