Aqueous ink composition, ink set, printed matter, and method for producing printed matter

One purpose of the present invention is to provide a water-based ink composition which has a high degree of freedom for adjustment to an optimal hue and a high optical density, does not cause color unevenness or turbidity of a printed matter, and has good ejection properties. One aspect of the prese...

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Bibliographische Detailangaben
Hauptverfasser:	ICHIKAWA RYOTA, GODA KEIGO, NABE TAKAAKI, SUMIDA, CHUCAN
Format:	Patent
Sprache:	chi ; 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:	One purpose of the present invention is to provide a water-based ink composition which has a high degree of freedom for adjustment to an optimal hue and a high optical density, does not cause color unevenness or turbidity of a printed matter, and has good ejection properties. One aspect of the present invention relates to an aqueous ink composition used in an ink jet recording method, characterized by containing an aqueous pigment dispersion having a hue angle h1 in an L * C * h color space as determined using a spectrophotometer, a hue angle h2 in an L * C * h color space obtained using a spectrophotometer satisfies a predetermined condition. 本发明的目的之一在于，提供调整为最佳色相的自由度和光学浓度高、不会引起印刷品的颜色不均或浑浊、具备良好喷出性的水性油墨组合物。本发明的一个方面涉及一种水性油墨组合物，其为喷墨记录方式中使用的水性油墨组合物，其特征在于，所述水性油墨组合物含有使用分光光度计求出的LCh颜色空间中的色相角度为h1的水性颜料分散体，使用分光光度计求出的LCh颜色空间中的色相角度h2满足规定的条件。