Active energy ray curable lithographic offset printing ink, and method for manufacturing printed materials

Abstract

The present invention provides an active energy ray-curable lithographic offset printing ink that exhibits excellent flexibility of the ink film even when an electron beam is used as the active energy ray, and a method for manufacturing printed materials using the said ink. [Solution] An active energy ray-curable lithographic offset printing ink characterized by containing a compound having an ethylenically unsaturated double bond, an extender pigment, a ketone resin, and a photopolymerization initiator; and a method for manufacturing a printed material, characterized by comprising the steps of printing the active energy ray-curable lithographic offset printing ink described above onto a substrate, and curing the ink printed with active energy rays.

Claims

1. An active energy ray-curable lithographic offset printing ink characterized by containing a compound having an ethylenically unsaturated double bond, an extender pigment, a ketone resin, and a photopolymerization initiator.

2. The active energy ray curable lithographic offset printing ink according to claim 1, wherein the photopolymerization initiator is contained in an amount of 0.1 to 3.0% by mass relative to the non-volatile components of the ink.

3. The active energy ray-curable lithographic offset printing ink according to claim 1 or 2, wherein the active energy ray is an electron beam.

4. The active energy ray-curable lithographic offset printing ink according to claim 1, comprising 30.0 to 60.0% by mass of the compound having an ethylenic double bond relative to the non-volatile components of the ink.

5. A method for manufacturing a printed material, comprising the steps of: printing an active energy ray-curable lithographic offset printing ink according to any one of claims 1 to 4 onto a substrate; and curing the ink printed with active energy rays.

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