| 摘要 |
PROBLEM TO BE SOLVED: To prepare ink for a inkjet recording device having good discharge stability, and to provide an inkjet recording method. SOLUTION: The ink for the inkjet recording device discharges ink from a head in which ink-repelling treatment is applied onto a nozzle plate surface. In the ink, when dynamic sweepback contact angle to nozzle plate is measured, when contact angle at measurement starting time is defined as α degree and contact angle after 1.5 sec from the measuring starting time is defined as α1 degree and contact angle after 2.1 sec from the measuring starting time is defined as α2 degree, changing ratio [(α1 -α2 )/0.6] of contact angle after 1.5 sec to 2.1 sec is <=0.24αdegree/sec. |
