Ink composition for ultraviolet curable ink jets, ink jet recording apparatus using the same, ink jet recording method using the same, and ink set

摘要

An ink composition for ultraviolet curable ink jets including monomer A represented by a general formula (I):
CH2═CR1—COOR2—O—CH═CH—R3  (I)(in the formula, ‘R1’ represents a hydrogen atom or methyl group, ‘R2’ represents a divalent organic residue having a carbon number of 2 to 20, and ‘R3’ represents a hydrogen atom or a monovalent organic residue having a carbon number of 1 to 11), and a photopolymerization initiator containing an acylphosphine oxide-based photopolymerization initiator and a thioxanthone-based photopolymerization initiator, in which the total content of the acylphosphine oxide-based photopolymerization initiator and the thioxanthone-based photopolymerization initiator is 8% by mass to 16% by mass with respect to the total mass of the ink composition.

主权项

1. An ink composition for ultraviolet curable ink jets, comprising:
monomer A represented by the following formula (I)
CH2═CR1—COOR2—O—CH═CH—R3  (I)(In the formula, ‘R1’ represents a hydrogen atom or methyl group, ‘R2’ represents a divalent organic residue having a carbon number of 2 to 20, and ‘R3’ represents a hydrogen atom or a monovalent organic residue having a carbon number of 1 to 11), wherein the content of the monomer A is 10% by mass to 75% by mass with respect to the total mass of the ink composition; and a photopolymerization initiator containing an acylphosphine oxide-based photopolymerization initiator and a thioxanthone-based photopolymerization initiator, wherein the total content of the acylphosphine oxide-based photopolymerization initiator and thioxanthone-based photopolymerization initiator is 8% by mass to 16% by mass with respect to the total mass of the ink composition, wherein the content of the acylphosphine oxide-based photopolymerization initiator is 7% by mass to 13% by mass with respect to the total mass of the ink composition.