RED PIGMENT COMPOSITION, METHOD FOR PRODUCING THE SAME, AND COLOR FILTER

PROBLEM TO BE SOLVED: To provide a red pigment composition which can form a high-contrast red pixel, and is excellent in heat resistance, and a color filter using the pigment composition.SOLUTION: A red pigment composition contains extremely fine C.I. Pigment Red 177, that has a crystallite size of...

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Hauptverfasser:	KIYOTO IKURO, GUNJI YASUHIKO, KATO CHIKAYA, ISHIYAMA FUMIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PHYSICS POLISHES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a red pigment composition which can form a high-contrast red pixel, and is excellent in heat resistance, and a color filter using the pigment composition.SOLUTION: A red pigment composition contains extremely fine C.I. Pigment Red 177, that has a crystallite size of 75-115 in terms of a calculation value from a half-value width of X-ray diffraction by the Scherrer's equation, and diaminodianthraquinone sulfonic acid or a salt thereof. A method for producing the same and a color filter are also provided.