METHOD FOR PRODUCING SURFACE-TREATED METAL PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a photocurable ink that is excellent in storage stability and can stably be discharged in discharging liquid droplets by an inkjet system.SOLUTION: The photocurable ink is used for discharging liquid droplets by an inkjet system, includes a surface-treated metal particle produced by coating the surface of the metal particle with a coating film of a phosphate ester compound and a polymerizable compound and has a content of isolated phosphate ester compound of less than 0.01 mass%. The metal particle preferably has a scaly-like shape and is preferably composed of aluminum as a constituent material. The phosphate ester compound is preferably a fatty acid triglyceride phosphate.