WATER BASE INK COMPOSITION AND INKJET RECORDING INK

PROBLEM TO BE SOLVED: To provide a water base ink for charge control-type inkjet recording which enables high resolution image printing by securing an appropriate electrical conductivity and excels in dissolution stability with time even when left to stand with the head filled with the ink for a lon...

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Bibliographische Detailangaben
1. Verfasser:	HIGETA SHIGERU
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:	PROBLEM TO BE SOLVED: To provide a water base ink for charge control-type inkjet recording which enables high resolution image printing by securing an appropriate electrical conductivity and excels in dissolution stability with time even when left to stand with the head filled with the ink for a long period of time without use. SOLUTION: The water base ink composition comprises a water-soluble dye, a wetting agent, and water as the major components and a specified quaternary phosphonium nitrate. It is preferred that this water base ink composition has an electrical conductivity of 5.0-20.0 mS/cm, a surface tension of >=30 mN/m, and a viscosity of