DISPERSED INK FOR INK-JET PRINTER Russian patent published in 2002 - IPC

FIELD: dispersed inks for ink-jet printers. SUBSTANCE: dispersed ink contains pigment, disperser with basic or acid groups, nonaqueous thinner containing less than 2 wt. % of water and neutralizer of said groups in amount insufficient for sedimentation and/or increase of ink viscosity which are detected for 28 days of ink standing at 25 C. Invention also covers description of method of ink production. EFFECT: improved nonwetting properties of ink to increase duration of continuous printing up to necessity of cleaning or replacement of nozzle plate on head of ink-jet printer. 9 cl, 5 tbl