INKJET INK AND INKJET PRINTING APPARATUS

PROBLEM TO BE SOLVED: To provide an inkjet printing apparatus using an inkjet ink that is free from clogging of nozzles of an inkjet head due to an increase of a quantity of pigment dispersion and resulting its coagulation and sedimentation in order to achieve more deep high print density of a black...

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Bibliographische Detailangaben
1. Verfasser:	IKENO HIROSHIGE
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 an inkjet printing apparatus using an inkjet ink that is free from clogging of nozzles of an inkjet head due to an increase of a quantity of pigment dispersion and resulting its coagulation and sedimentation in order to achieve more deep high print density of a black color in outdoor applications, as color reproducibility of a color picture is required widely. SOLUTION: This black ink of a solvent-based pigment ink used in the inkjet ink and the inkjet printing apparatus comprises at least a pigment, a polymer compound and an organic solvent, wherein the pigment contains 70-90 wt.% of a black pigment and 10-30 wt.% of a cyan pigment, and the ink composition contains 4-6 wt.% of the pigment. COPYRIGHT: (C)2008,JPO&INPIT