INK SET

• Main Authors: KAMEYAMA YUJI, HAYAMI MAYUKO, SUGIHARA MASAHIRO, MASATOKI MUTSUKO, YABUKI RYOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2022
• Subjects: ADHESIVES; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DETERGENT COMPOSITIONS; DETERGENTS; DYES; FATTY ACIDS THEREFROM; 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; RECOVERY OF GLYCEROL; RESIN SOAPS; SELECTIVE PRINTING MECHANISMS; SOAP OR SOAP-MAKING; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; USE OF SINGLE SUBSTANCES AS DETERGENTS; WOODSTAINS

To provide an ink set containing a magenta ink set ink excellent in coloring power and scratch resistance, and a maintenance liquid excellent in flow path washability in an inkjet ink recorder, removability of solidified and precipitated components, and stability during mixing, and further excellent in moisture retention.SOLUTION: Provided are an ink set comprising a magenta inkjet ink containing water, a water-soluble organic solvent, a β-naphthol azo pigment, and resin particles, and a maintenance liquid containing water and an organic compound having a specific structure. Preferably, the resin particles contain a wax emulsion, and the β-naphthol-based azo pigment contains C.I. Pigment Red 150 and/or C.I. Pigment Red 269.SELECTED DRAWING: None 【課題】発色力及び耐擦過性に優れるマゼンタインクジェットインキと、インクジェット記録装置内の流路洗浄性、固化及び析出した成分の除去性、及び、混合時の安定性に優れ、更には保湿性も良好なメンテナンス液と、を含むインキセットを提供する。【解決手段】水と、水溶性有機溶剤と、β－ナフトール系アゾ顔料と、樹脂粒子とを含むマゼンタインクジェットインキと、水と、特定の構造を有する有機化合物とを含むメンテナンス液とを含む、インキセット。好ましくは、前記樹脂粒子が、ワックスエマルジョンを含み、前記β－ナフトール系アゾ顔料が、Ｃ．Ｉ．ピグメントレッド１５０及び／またはＣ．Ｉ．ピグメントレッド２６９を含む。【選択図】なし