| 摘要 |
Provided is a process for producing an ink jet recording head, including: forming, on a substrate, a resin composition layer including a cationically polymerizable epoxy resin composition containing a specific compound; carrying out a first pattern exposure and a first heat treatment at the resin composition layer; carrying out a second pattern exposure and a second heat treatment at an unexposed portion of the resin composition layer; and, removing an unexposed portion in the first pattern exposure and in the second pattern exposure by a development treatment, thereby forming an ejection orifice for ejecting ink and an ejection portion having a taper shape in which an inner diameter reduces toward the ejection orifice. |
