Nonaqueous type pigment ink for ink jet and nonaqueous type pigment ink set null

摘要

PROBLEM TO BE SOLVED: To provide a non-aqueous pigment ink and an ink set capable of obtaining sufficient image density regardless of the type of used printing paper.;SOLUTION: The non-aqueous pigment ink to be used for an inkjet recording system and the like contains a pigment, a dispersing agent, and a non-aqueous solvent. The pigment is carbon black and the like, the dispersing agent is a copolymer of vinylpyrrolidone and 10-40C alkene, and the non-aqueous solvent is a polar organic solvent.;COPYRIGHT: (C)2010,JPO&INPIT