WATER-BASED INK FOR INKJET RECORDING, INK CARTRIDGE, INKJET RECORDING APPARATUS, METHOD FOR EVALUATING WATER-BASED INK FOR INKJET RECORDING, AND METHOD FOR PRODUCING WATER-BASED INK FOR INKJET RECORDING

摘要

PROBLEM TO BE SOLVED: To provide water-based ink for inkjet recording excellent in discharge stability.;SOLUTION: The water-based ink for inkjet recording includes a coloring agent, water, and a water-soluble organic solvent. In the water-based ink after drying, a phase () obtained from tan measured at 25C is constantly 45 degrees or more. In other words, the phase () never becomes less than 45 degrees at a strain amount of about 0.1% to 100%. The water-based ink for inkjet recording is excellent in discharge stability.;COPYRIGHT: (C)2010,JPO&INPIT