Light-curable ink composition for ink jet recording and ink jet recording method using the same

Inventors: Toru Saito (Yamagata-mura, JP); Hiroshi Fukumoto (Shiojiri, JP); Hiroki Nakane (Matsumoto, JP); Hiroaki Kida (Shiojiri, JP); Keitaro Nakano (Matsumoto, JP)

Assignee: Seiko Epson Corporation

C09D11/107 B41J11/002 C09D11/101 C09D11/322

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Quick Facts

Patent No.: US 9,181,444
App. No.: 13/689,923
Granted: Nov 10, 2015
Kind: B2

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Abstract

A light-curable ink composition for ink jet recording contains a coloring material, a polymerizable compound, and a photopolymerization initiator. The coloring material contains at least C.I. Pigment Yellow 155, and the polymerizable compound contains at least a vinyl-ether-containing (meth)acrylate represented by general formula (I) below: CH 2 ═CR 1 —COOR 2 —O—CH═CH—R 3 (I). The vinyl-ether-containing (meth)acrylate is present in an amount of 10 to 67% by mass relative to the total mass of the ink composition.

Claims (30)

1. A light-curable ink composition for ink jet recording comprising a coloring material, a polymerizable compound, a polymerization and a photopolymerization initiator, wherein

the coloring material contains at least C.I. Pigment Yellow 155, and the polymerizable compound contains at least a vinyl-ether-containing (meth)acrylate represented by general formula (I) below, with the vinyl-ether-containing (meth)acrylate present in an amount of 10 to 67% by mass based on a total mass of the ink composition:

CH 2 ═CR 1 —COOR 2 —O—CH═CH—R 3 (I)

(where R 1 is a hydrogen atom or a methyl group, R 2 is a divalent organic residue having 2 to 20 carbon atoms, and R 3 is a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms),

wherein the polymerizable compound further contains a monofunctional (meth)acrylate, other than the vinyl-ether-containing (meth)acrylate, having either an aromatic skeleton or an alicyclic skeleton present in an amount of 10 to 60% by mass based on the total mass of the ink composition.

2. The light-curable ink composition for ink jet recording according to claim 1 , wherein the monofunctional (meth)acrylate has an aromatic skeleton.

3. The light-curable ink composition for ink jet recording according to claim 1 , wherein the vinyl-ether-containing (meth)acrylate is present in an amount of 10 to 40% by mass relative to the total mass of the ink composition.

4. The light-curable ink composition for ink jet recording according to claim 1 , wherein the monofunctional (meth)acrylate is at least either one of phenoxy ethyl (meth)acrylate and benzyl (meth)acrylate.

5. The light-curable ink composition for ink jet recording according to claim 1 , wherein C.I. Pigment Yellow 155 is present in an amount of 0.1 to 3% by mass relative to the total mass of the ink composition.

6. The light-curable ink composition for ink jet recording according to claim 1 , wherein the photopolymerization initiator contains at least an acylphosphine oxide.

7. An ink jet recording method comprising

ejecting the light-curable ink composition for ink jet recording according to claim 1 onto a recording medium and