METHOD OF PRODUCING A PIGMENT CONTAINING, CATIONIC, HIGH SOLIDS AQUEOUS DISPERSION, AQUEOUS DISPERSION CONTAINING PIGMENTS, AND USE THEREOF

A method of producing an aqueous dispersion of a pigment, and the aqueous dispersion of the pigment and the uses of the aqueous dispersion of the pigment. In the present method, an inorganic pigment is dispersed in water, in the presence of a dispersing agent. According to the present invention, the...

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Bibliographische Detailangaben
Hauptverfasser:	HAAKANA SAMI, TOLONEN JARMO, TAMMINEN ILKKA, AARNI ESKO, VIITANEN JORMA
Format:	Patent
Sprache:	eng
Schlagworte:	IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	A method of producing an aqueous dispersion of a pigment, and the aqueous dispersion of the pigment and the uses of the aqueous dispersion of the pigment. In the present method, an inorganic pigment is dispersed in water, in the presence of a dispersing agent. According to the present invention, the inorganic pigment comprises cationic calcium carbonate, especially precipitated calcium carbonate, which is dispersed using a cationic biopolymer, such as starch, in order to prepare an aqueous dispersion, the solids content of which is approximately 30-75% by weight. The dispersion generated can be used, among others, as pigment or filler for ink-jet paper.