Patent ID: 8012364

Claim:
A producing method for an ink jet recording head including a substrate provided with an energy-generating element for generating ink discharging energy, a discharge port provided corresponding to the energy-generating element, an ink flow path for supplying the discharge port with ink, and a flow path forming member which forms the ink flow path in combination with the substrate, the method comprising: a step of forming a layer of a photocurable resin composition on the substrate; a step of subjecting the layer of the photocurable resin composition to a pattern exposure; a step of executing a developing process on the pattern exposed layer of the photocurable resin composition, thereby forming an ink flow path pattern formed by a cured substance of the photocurable resin composition; and a step of laminating a substrate provided with the discharge port on the substrate having the ink flow path, wherein the photocurable resin composition contains: (a) a cationically polymerizable resin; (b) a cationic photopolymerization initiator; and (c) a condensate of a bi-functional hydrolysable organosilane compound having an aromatic ring (bi-functional indicating two condensable groups present on one Si atom) and a tri- or tetra-functional hydrolysable organosilane compound without an aromatic ring.