Active energy ray-curable inkjet ink composition and printed material using same

摘要

Provided is an ink composition used in active energy ray-curable inkjet printing, which has excellent curing property, discharge property, storage stability, and compatibility with various substrates. The inkjet ink composition of the present invention includes at least two types of polymerizable compounds selected from a group consisting of (A) 2-(2-vinyloxyethoxy) ethyl acrylate, (B) N-vinyl caprolactam, and (C) at least one type of bifunctional acrylate monomer including at least a diacrylate having a molecular weight of 250 or less.

主权项

1. An active energy ray-curable inkjet ink composition comprising at least two types of polymerizable compounds selected from the group consisting of
(A) 2-(2-vinyloxyethoxy) ethyl acrylate, (B) N-vinyl caprolactam, and (C) a bifunctional acrylate monomer comprising a diacrylate and having a molecular weight of 250 or less, said composition further comprising a pigment and a pigment dispersing agent, wherein the pigment dispersing agent is a comb type resin dispersing agent comprising polyethyleneimine as a main skeleton and a urethane skeleton as a side chain.