INKJET INK SET AND IMAGE FORMING METHOD

• Main Authors: TERAMAE SHINICHI, ITO ORIE, OISHI YASUSHI
• Format: Patent
• Language: English; Japanese
• Published: 19.02.2015
• 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; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide an inkjet ink set which is excellent in stability and ejectability of an ink composition and suppresses generation of satellite droplets, and to provide an image forming method.SOLUTION: The inkjet ink set contains: an ink composition containing water, a coloring material, polymer particles having a glass transition temperature of 90°C or higher, an organic amine, and an inorganic salt; and a treatment liquid containing an acidic compound which forms aggregates when brought into contact with the ink composition. 【課題】インク組成物の安定性及び吐出性に優れると共に、サテライト液滴の発生が抑制されたインクジェット用インクセット、及び画像形成方法を提供する。【解決手段】水、色材、９０℃以上のガラス転移温度を有するポリマー粒子、有機アミン、及び無機塩を含有するインク組成物と、前記インク組成物と接触したときに凝集体を生成する酸性化合物を含有する処理液と、を含むインクジェット用インクセット。【選択図】なし