Patent ID: 6077339
Filing Date: 2000-06-20
Classification: B01F,C09B,C09D

Abstract:
A method comprising ink-jet printing with a printing ink containing a pigment preparation comprising(a) water,(b) 0.1 to 100%, based on the amount of pigment (c), of a dispersing agent, and(c) at least one pigment having the formula ##STR11## or tautomeric forms thereof, whereinB is an isoindoline group having the formula ##STR12## wherein the double bonds are linked respectively through the 1- and 3-positions of the isoindoline group;A is a cyanomethylene group having the formula ##STR13## Z.sup.1 to Z.sup.10 are independently O or NR.sup.10 ; R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen, alkyl, cycloalkyl, aryl, aralkyl, or heteroaryl;R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are independently hydrogen, halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, or C.sub.6 -C.sub.10 aryloxy;R.sup.9 is an electron-withdrawing group; andR.sup.10 is hydrogen or cyano.