Patent ID: 8444253
Filing Date: 2013-05-21
Classification: B41J,Y10T

Abstract:
1. A method of manufacturing an inkjet head comprising a substrate having an energy generating element for generating energy to be used for ejecting liquid, a liquid flow path forming member, which forms patterns of an ejection orifice for ejecting the liquid and a liquid flow path communicating with the ejection orifice, and which has a water-repellent layer on a surface thereof, and a hydrophilic portion, which is a recess having a bottom in the liquid flow path forming member and which does not have the water-repellent layer on a surface thereof, the method comprising: providing, on the substrate, a photosensitive material layer formed of a cationically polymerizable, photocurable resin composition, for forming the liquid flow path forming member; providing, on the photosensitive material layer, a water-repellent layer forming material layer; a first exposure step of exposing an area excluding at least areas corresponding to the ejection orifice and the hydrophilic portion of the photosensitive material layer and the water-repellent layer forming material layer to cure the photosensitive material layer and the water-repellent layer forming material layer in the exposed area; and a second exposure step of exposing an area excluding at least the area corresponding to the ejection orifice and including the area corresponding to the hydrophilic portion of the photosensitive material layer and the water-repellent layer forming material layer.