Patent ID: 8899711
Filing Date: 2014-12-02
Classification: B41J,C09D

Abstract:
1. An inkjet recording method performed using an inkjet recording device including a recording head provided with a nozzle ejecting liquid droplets of aqueous ink, a pressure chamber communicated with the nozzle, and a pressure generator that pressurizes the pressure chamber, and a driving signal generator that generates signals applied to the pressure generator, the method comprising ejecting the aqueous ink droplets by the pressure generated by the pressure generator according to the signals and satisfying the following requirements (1) and (2): (1) it is required to use aqueous ink having a dynamic surface tension larger by 10 mN/m or more than a static surface tension when the surface life measured at 25° C. by a maximum foaming pressure method is 15 ins and a dynamic surface tension larger by 5 mN/m or more than a static surface tension when the surface life measured by a maximum foaming pressure method is 1500 ms; and (2) it is required that the signals have a drawing pulse in one print period and the aqueous ink forming a meniscus in the nozzle is drawn into the nozzle in two stages by the drawing pulse.