ACTIVE ENERGY RAY-CURABLE LITHOGRAPHIC PRINTING INK, AND PRINTED MATTER

An active energy ray-curable lithographic printing ink including a rosin-modified resin (A), an active energy ray-curable compound (B), a photopolymerization initiator (C), and an extender pigment (D), where the active energy ray-curable compound (B) includes dipentaerythritol hexaacrylate (B1), and...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMURA, Yoshie, NONAMI, Hirotada, OHNO, Takamoto, FUKUSHIMA, Akeha, KUGE, Hiroyuki, HANADA, Tomohiro
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An active energy ray-curable lithographic printing ink including a rosin-modified resin (A), an active energy ray-curable compound (B), a photopolymerization initiator (C), and an extender pigment (D), where the active energy ray-curable compound (B) includes dipentaerythritol hexaacrylate (B1), and an amount of the dipentaerythritol hexaacrylate (B1) relative to a total mass of the active energy ray-curable lithographic printing ink is within a range from 20 to 37% by mass. The photopolymerization initiator (C) includes at least two types of compounds selected from acylphosphine oxide-based compounds (C1), thioxanthone-based compounds (C2), and oxime ester-based compounds (C3), an amount of the extender pigment (D) relative to a total mass of the active energy ray-curable lithographic printing ink is within a range from 0.1 to 10% by mass, and a viscosity of the ink at 25° C. is within a range from 10 to 120 Pa·s.