Inkjet inks with increased optical density

This invention pertains to aqueous inkjet inks containing self-dispersing pigments and effective amounts of one or more multivalent cations, said inks having increased optical density when printed.

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Bibliographische Detailangaben
Hauptverfasser:	VALENTINI JOSE E, YEH AN-GONG
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS CORRECTION OF TYPOGRAPHICAL ERRORS DYES FILLING PASTES i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INKS LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	This invention pertains to aqueous inkjet inks containing self-dispersing pigments and effective amounts of one or more multivalent cations, said inks having increased optical density when printed.