METHOD OF MANUFACTURING SULFONATED ORGANIC PIGMENT SALT WATER NATURE DISPERSION

PROBLEM TO BE SOLVED: To provide a method of simply manufacturing a sulfonated organic pigment salt water nature dispersion that exerts excellent dispersibility and storage stability in an aqueous medium, and exerts excellent dischargeability, image density, hue, and chroma when used for aqueous ink...

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Bibliographische Detailangaben
Hauptverfasser:	ARAI HIROAKI, ISHIBASHI YUKARI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS LAKES 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 POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of simply manufacturing a sulfonated organic pigment salt water nature dispersion that exerts excellent dispersibility and storage stability in an aqueous medium, and exerts excellent dischargeability, image density, hue, and chroma when used for aqueous inks such as an inkjet ink.SOLUTION: The method of manufacturing the sulfonated organic pigment salt water nature dispersion is characterized as follows. An organic pigment is mixed with sulfite or hydrogen sulfite under the presence of dimethylacetamide or dimethylformamide and an aqueous medium, and is sequentially dispersed, sulfonated, purified, neutralized, and desalted for purification.