Patent ID: 6123863
Filing Date: 2000-09-26
Classification: B41J

Abstract:
A process for producing a liquid-jet recording head, comprising the steps of:providing a solid layer of a photosensitive material in a pattern of a liquid path on a substrate, the substrate having an ink discharge energy generating element provided thereon, the photosensitive material comprising a positive resist which is solubilized by active rays;providing at least a portion of a liquid path forming material on the substrate having the solid layer, the liquid path forming material comprising a resin;forming a discharge opening in the liquid path forming material above the ink discharge energy generating element provided on the substrate; andremoving the solid layer from the substrate,wherein the solid layer is removed by use of at least one of methyl lactate, ethyl lactate, and butyl lactate, or a solvent which contains as a main component at least one of methyl lactate, ethyl lactate, and butyl lactate.