Patent ID: 6476096
Filing Date: 2002-11-05
Classification: C09D

Abstract:
An ink jet printer ink having a viscosity no greater than 15 mPas at 25Â° C. comprising a dispersion of particulate pigment dye in a diluent and containing a dispersing agent for the pigment dye wherein the diluent comprises more than 50% by volume of white oil and the composition includes at least one dispersing agent comprising at least one compound having both an at least C36 alkyl group or alkenyl group containing at least one unsaturated carbon-carbon bond and at least on &agr;,&bgr;-dicarboxylic acid imide moiety, said dispersing agent being present in an amount of at least 20% by weight of said pigment dye, wherein the pigment dye is a non-carbon black colorant.