Black ink composition, ink set containing the same, and ink jet recording method

A black ink composition is provided and contains at least two coloring materials, water and additives, wherein the coloring material on the short wave side of the two coloring materials is a water-soluble dye having 3 or more azo groups in one molecule and a naphthalene skeleton, and the additives a...

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Bibliographische Detailangaben
1. Verfasser:	OGAWA MANABU
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 LAKES LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES 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:	A black ink composition is provided and contains at least two coloring materials, water and additives, wherein the coloring material on the short wave side of the two coloring materials is a water-soluble dye having 3 or more azo groups in one molecule and a naphthalene skeleton, and the additives are selected from the group consisting of a bronzing inhibitor and an ozone resisting improver.