Patent ID: 10029461

Abstract:
Provided is an ink discharging apparatus configured to discharge an active-energy-ray-curable ink from an ink discharging head of which members to contact the ink are joined using an epoxy adhesive, wherein the ink contains at least any one selected from the group consisting of an acrylamide compound and an N-vinyl compound, and wherein an elastic modulus decreasing rate represented by a formula (1) below is 50 percent or less, Elastic modulus decreasing rate (%)={(E1−E2)/E1}×100   formula (1) where E1 represents an elastic modulus (GPa) of a cured product obtained by curing the epoxy adhesive at 90 degrees C. for 4 hours, and E2 represents an elastic modulus (GPa) of an immersed product obtained by immersing the cured product in the ink at 60 degrees C. for 4 weeks.