AQUEOUS PIGMENT DISPERSION FOR INKJET PRINTING AQUEOUS INK

• Main Authors: UEDA YUTARO, SATO YOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 15.04.2021
• Subjects: 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; PREPARATION OF CARBON BLACK; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide an aqueous pigment dispersion which has small particle diameters and the small number of coarse particles of a dispersion, is excellent in dispersibility and storage stability of the pigment in the water, and is usable in manufacture of inkjet printing aqueous ink that can be discharged by an inkjet printing method.SOLUTION: An aqueous pigment dispersion for inkjet printing aqueous ink contains C.I. Pigment Orange 34 (A), a pigment dispersion resin (B), and water (C).SELECTED DRAWING: None 【課題】本発明が解決しようとする課題は、分散物の粒子径および粗大粒子数が少なく、水中における顔料の分散性と、保存安定性とに優れ、かつ、インクジェット印刷法で吐出が可能なインクジェット印刷水性インクの製造に使用可能な水性顔料分散体を提供することである。【解決手段】本発明は、Ｃ．Ｉ．ピグメントオレンジ３４（Ａ）と、顔料分散樹脂（Ｂ）と、水（Ｃ）とを含有することを特徴とするインクジェット印刷水性インク用水性顔料分散体に関するものである。【選択図】なし