PIGMENT-BASED INKJET INK IN WHICH PRINTING QUALITY AND RELIABILITY HAVE BEEN IMPROVED

摘要

PROBLEM TO BE SOLVED: To provide an ink composition which can print correctly at a high frequency, and which shows good printing quality and storage stability.;SOLUTION: The ink composition can contain a liquid vehicle which comprises water and total content of 5-35 wt% of an organic solvent, 1-6 wt% acid-functionalized pigment solid matter, and 0.001-6 wt% styrene-maleic anhydride copolymer, and the weight-average molecular weight Mw of the above styrene-maleic anhydride copolymer is about 400-15,000.;COPYRIGHT: (C)2006,JPO&NCIPI