AQUEOUS CARBON BLACK DISPERSION AND ITS PRODUCTION AND AQUEOUS INK USING THE SAME

PROBLEM TO BE SOLVED: To produce an aqueous carbon black dispersion having excellent dispersion stability, not causing the clogging of nozzles and pen tips, and useful as an aqueous ink for ink jet printers, writing tools, etc., by using carbon black having a specific stoke-corresponding diameter an...

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Bibliographische Detailangaben
1. Verfasser:	MISE NOBUTAKE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS 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 PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES PREPARATION OF CARBON BLACK PRINTING SELECTIVE PRINTING MECHANISMS STAMPS THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To produce an aqueous carbon black dispersion having excellent dispersion stability, not causing the clogging of nozzles and pen tips, and useful as an aqueous ink for ink jet printers, writing tools, etc., by using carbon black having a specific stoke-corresponding diameter and its half width. SOLUTION: This aqueous carbon black dispersion is obtained by dispersing (A) carbon black having a maximum frequency stoke-corresponding diameter (Dmod) of 20-60 nm and satisfying the relation of the inequality: (D1/2)/ Dmod=3 μequ/m2, an active hydrogen content of