NONAQUEOUS PIGMENT INK

PROBLEM TO BE SOLVED: To provide a nonaqueous pigment ink, wherein printed matter having high density can be obtained by a relatively low resin concentration in the ink; and the ink has excellent discharge stability and storage stability without separately adding a pigment dispersant. SOLUTION: The...

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1. Verfasser:	UOZUMI SHUNSUKE
Format:	Patent
Sprache:	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:	PROBLEM TO BE SOLVED: To provide a nonaqueous pigment ink, wherein printed matter having high density can be obtained by a relatively low resin concentration in the ink; and the ink has excellent discharge stability and storage stability without separately adding a pigment dispersant. SOLUTION: The nonaqueous pigment ink contains a nonaqueous resin dispersed fine particles having pigment dispersing ability. The nonaqueous resin dispersed fine particles may be obtained by copolymerization of a polymerizable monomer mixture containing, as a main component, an alkyl acrylate monomer which is soluble in a solvent and insolubilized by undergoing polymerization. The alkyl acrylate monomer contains a monomer having a long chain alkyl group (12-25C) and a monomer having at least one functional group selected from the group consisting of a tertiary amino group, a glycidyl group, a carboxyl group, and a macromonomer having a styrene-derived functional group. COPYRIGHT: (C)2007,JPO&INPIT