Abstract:
An ink composition which is especially useful for ink jet printing contains a colorant, a liquid carrier and at least one additive selected from meso-erythritol and salts thereof, RC(CH₂OH)₃ and salts thereof, wherein R is a member selected from the group consisting of NH₂ and alkyl.
Abstract:
An ink composition, preferably for ink jet printing, contains a liquid carrier, a colorant, and a polyalkyleneimine/alkylene oxide block copolymer, preferably polyethyleneimine/propylene oxide/ethylene oxide block copolymer, and/or a primary or secondary polyoxyalkylene amine.
Abstract:
Fast drying ink compositions contain a colorant, water and a cosolvent. Some of the ink compositions dry in less than about 1 second and have a viscosity of betwween about 1.6 and about 2.5 centipoise and a specified surface tension. Some of the ink compositions contain specified cosolvents, preferably a mixture of diethylene glycol monobutyl ether and glycerol.