| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dispersion-type inkjet ink secured in the printing stability although there are inks having a difficulty in securing printing stability only by conventional regulation of static physical properties such as viscosity and surface tension because the dynamic behavior of continuous discharge of ink droplets at several tens of kHz is a dominant phenomenon in an inkjet head. <P>SOLUTION: The storage modulus of the inkjet ink is made ≤0.00001 Pa at an angular frequency of 0.01 to 10 rad/sec. The inkjet ink is a UV-curing inkjet ink, and has a viscosity of 20 mPa s at 25°C, a viscosity of 10 mPa s at 40°C, and a storage modulus of ≤0.00001 Pa at an angular frequency of 0.01 to 10 rad/sec. <P>COPYRIGHT: (C)2012,JPO&INPIT |
