Xerox Corporation

Barbel Helbrecht

Marcel Philippe Breton

Melvin D Croucher

Kerstin M Henseleit

Fatima M Pontes

Shadi L Malhotra

Raymond W Wong

Geoffrey A Nobes

Disclosed is an ink composition which comprises an aqueous liquid vehicle, a dye, and a cyclodextrin. The ink is particularly suitable for ink jet printing processes, especially thermal ink jet printing processes. Also disclosed is a process for generating images onto a substrate which comprises incorporating an ink composition comprising an aqueous liquid vehicle, a dye, and a cyclodextrin into an ink jet printing apparatus and causing droplets of the ink composition to be ejected in an imagewise pattern onto the substrate.

Ink compositions containing cyclodextrins

Disclosed is an ink composition which comprises an aqueous liquid vehicle, a colorant, and an additive material selected from the group consisting of amine alkoxylates, sorbitan monoester alkoxylates, alkylene oxide adducts of glycerine, and mixtures thereof.

Ink jet ink compositions

Fast drying ink compositions contain a colorant, a dye, water and a cosolvent. Some of the ink compositions dry in less than about 1 second and have a viscosity of between 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.

Ink for ink jet printing

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.

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Oakville, Canada

Barbel Helbrecht