POLYMERIC DISPERSANT AND PRODUCTION METHOD THEREFOR, AQUEOUS PIGMENT DISPERSION, AND WATER-BASED INK-JET INK

The present invention provides a polymeric dispersant that is to be blended in an aqueous pigment dispersion in which a pigment is finely dispersed in a stable manner and at a high level, the aqueous pigment dispersion enabling preparation of an aqueous inkjet ink capable of recording an image excel...

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Bibliographische Detailangaben
Hauptverfasser:	KANO Katsuhiko, MIYAZAKI Chikako, SHIMANAKA Hiroyuki, MURAKAMI Yoshikazu, YOSHIKAWA Sachio, KUME Kosuke
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS DYES FILLING PASTES INKS LAKES LINING MACHINES 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 PERFORMING OPERATIONS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention provides a polymeric dispersant that is to be blended in an aqueous pigment dispersion in which a pigment is finely dispersed in a stable manner and at a high level, the aqueous pigment dispersion enabling preparation of an aqueous inkjet ink capable of recording an image excellent in adhesiveness and durability on plastic media and textiles. The polymeric dispersant is a polymeric dispersant that is for dispersing a pigment and is to be blended in an aqueous pigment dispersion to be used for an aqueous inkjet ink for plastic media printing or textile printing, and is a polymer satisfying the following requirement (1) and the like.[Requirement (1)]:The polymer includes a constituent unit (i) derived from styrene, a constituent unit (ii) derived from methyl methacrylate and/or the like, a constituent unit (iii) derived from 2-ethylhexyl methacrylate and/or the like, a constituent unit (iv) derived from 2-hydroxyethyl methacrylate and/or the like, and a constituent unit (v) derived from methacrylic acid, and at least part of carboxy groups is neutralized with an alkali.