ACTIVE ENERGY RAY-CURABLE INK FOR INKJET RECORDING AND PRODUCTION METHOD OF PRINTED MATTER

• Main Authors: CHISAKA YUICHI, ISONAKA TAKESHI, KATANO DAICHI
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2019
• 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

To provide an active energy ray-curable ink for inkjet recording, which can reduce a dose of active energy rays compared to the prior arts, can be used for forming a printed matter excellent in scratch resistance even when a dose of the active energy rays is reduced, and shows excellent discharge stability and dispersion stability.SOLUTION: The active energy ray-curable ink for inkjet recording comprises a pigment (A) having an aspect ratio of 1.8 or less, a polymerizable compound (B) comprising a compound (b) having one polymerizable unsaturated double bond, and a photopolymerization initiator (C) comprising a thioxanthone compound (c). The photopolymerization initiator (C) is included by the range from 8 to 20 mass% with respect to the whole amount of the ink.SELECTED DRAWING: None 【課題】本発明が解決しようとする課題は、活性エネルギー線の照射量を従来よりも低減することができ、かつ、照射量を低減した場合であっても、耐擦過性に優れた印刷物の形成に使用可能な、吐出安定性及び分散安定性に優れた活性エネルギー線硬化型インクジェット記録用インクを提供することである。【解決手段】本発明は、アスペクト比が１．８以下の顔料（Ａ）、重合性不飽和二重結合を１個有する化合物（ｂ）を含む重合性化合物（Ｂ）、及び、チオキサントン系化合物（ｃ）を含む光重合開始剤（Ｃ）を含有する活性エネルギー線硬化型インクジェット記録用インクであって、前記光重合開始剤（Ｃ）が前記インクの全量に対して８〜２０質量％の範囲で含まれることを特徴とする活性エネルギー線硬化型インクジェット記録用インクに関するものである。【選択図】なし