DIGITAL ADVANCED LITHOGRAPHIC IMAGING INKS WITH IMPROVED CURABLE PERFORMANCE, IMAGE ROBUSTNESS AND PROCESSES THEREOF

An ink composition useful for digital offset printing applications includes a colorant and a high viscosity thickening agent. A process for variable data lithographic printing includes applying a dampening fluid to an imaging member surface; forming a latent image by evaporating the dampening fluid...

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Bibliographische Detailangaben
Hauptverfasser:	MOORLAG Carolyn, BRETON Marcel P, MAYO James D, LEE Jonathan Siu-Chung, MAGDALINIS Aurelian Valeriu, ABRAHAM Biby E, ALLEN C. Geoffrey
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPARATUS SPECIALLY ADAPTED THEREFOR CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CINEMATOGRAPHY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS DYES ELECTROGRAPHY FILLING PASTES HOLOGRAPHY INKS LINING MACHINES MATERIALS THEREFOR METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORIGINALS THEREFOR PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS POLISHES PRINTING PRINTING MACHINES OR PRESSES PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An ink composition useful for digital offset printing applications includes a colorant and a high viscosity thickening agent. A process for variable data lithographic printing includes applying a dampening fluid to an imaging member surface; forming a latent image by evaporating the dampening fluid from selective locations on the imaging member surface to form hydrophobic non-image areas and hydrophilic image areas; developing the latent image by applying an ink composition comprising an ink component to the hydrophilic image areas, the ink composition comprising a high viscosity thickening agent to raise the viscosity of the composition from about 1.05 to about 2 times higher while maintaining excellent transfer to a substrate at low temperatures.