| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly reliable inkjet recording system by improving a filling property of ink, the inkjet recording system having an inkjet recording head in which a part of a wall face of a pressurizing chamber is formed of a piezoelectric element. <P>SOLUTION: In this inkjet recording system, the surface roughness Ra of the piezoelectric element is in the range of 0.05 to 2 μm and the ink includes a surfactant. The concentration of the surfactant is in the range of the multiples of 0.01-1.0 of a critical micelle concentration in a vehicle and satisfies formula (1). In the formula, "Ra" represents the average roughness Ra(μm) of the center line of the surface of the piezoelectric element forming the wall face of the pressurizing chamber, "C" represents the concentration of the surfactant (mass%), and "CMC" represents the critical micelle concentration (mass%) in the vehicle. <P>COPYRIGHT: (C)2008,JPO&INPIT |
