Photocurable ink composition, recording method, recording apparatus, photocurable ink jet recording ink composition, and ink jet recording method

Patent metadata

Field	Value
Publication number	US-9738800-B2
Application number	US-201213458184-A
Country	US
Kind code	B2
Filing date	Apr 27, 2012
Priority date	Apr 28, 2011
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A photocurable ink composition includes polymerizable compounds and a photopolymerization initiator. The polymerizable compounds include vinyl ether group-containing (meth)acrylic esters represented by the following Formula (I):

CH 2 ═CR 1 —COOR 2 —O—CH═CH—R 3   (I)

(wherein, R 1 represents a hydrogen atom or a methyl group; R 2 represents a divalent organic residue having 2 to 20 carbon atoms; and R 3 represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms), dipropylene glycol di(meth)acrylate, and monofunctional (meth)acrylate having an aromatic ring skeleton. The ink composition includes a coloring material.

First claim

What is claimed is:

1. A photocurable ink composition comprising polymerizable compounds and a photopolymerization initiator, wherein
the polymerizable compounds include:
vinyl ether group-containing (meth)acrylic esters represented by the following Formula (I):
CH 2 ═CR 1 —COOR 2 —O—CH═CH—R 3   (I)

(wherein, R 1 represents a hydrogen atom or a methyl group; R 2 represents a divalent organic residue having 2 to 20 carbon atoms; and R 3 represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms);
dipropylene glycol di(meth)acrylate; and
monofunctional (meth)acrylate having an aromatic ring skeleton,
the ink composition includes a coloring material,
wherein the content of the monofunctional (meth)acrylate having an aromatic ring skeleton is 10 to 60% by mass based on the total mass of the ink composition,
wherein the content of the dipropylene glycol di(meth)acrylate is in the range of 3 to 20% by mass based on the total mass of the ink composition,
wherein the photopolymerization initiator is an acylphosphine oxide compound and is contained in an amount between 7 and 15% by mass based on the total mass of the ink composition, and
wherein the content of the vinyl ether group-containing (meth)acrylic esters is in the range of 5 to 65% by mass based on the total mass of the ink composition.

2. The photocurable ink composition according to claim 1 , wherein the content of the dipropylene glycol di(meth)acrylate is 5 to 25% by mass based on the total mass of the ink composition.

3. The photocurable ink composition according to claim 1 , wherein the content of the vinyl ether group-containing (meth)acrylic esters is 10 to 30% by mass based on the total mass of the ink composition.

4. The photocurable ink composition according to claim 1 , wherein the photopolymerization initiator is an acylphosphine oxide compound and is contained in an amount of 9 to 15% by mass based on the total mass of the ink composition.

5. The photocurable ink composition according to claim 1 , wherein the ink composition is allowed to adhere to a recording medium and is cured by irradiation with light from an ultraviolet light-emitting diode having an emission peak wavelength in a range of 350 to 420 nm.

6. The photocurable ink composition according to claim 1 , wherein the ink composition is curable by irradiation with an energy of 300 mJ/cm 2 or less from an ultraviolet light-emitting diode having an emission peak wavelength in a range of 350 to 420 nm.

7. The photocurable ink composition according to claim 1 , wherein the vinyl ether group-containing (meth)acrylic esters are 2-(vinyloxyethoxy)ethyl acrylate.

8. An ink jet recording method comprising:
allowing the photocurable ink composition according to claim 1 to adhere to a recording medium; and
curing the adhering ink composition by irradiation with light from an ultraviolet light-emitting diode having an emission peak wavelength in a range of 350 to 420 nm.

9. An ink jet recording apparatus for allowing the photocurable ink composition according to claim 1 to adhere to a recording medium and curing the adhering ink composition by irradiation with light from an ultraviolet light-emitting diode having an emission peak wavelength in a range of 350 to 420 nm.

10. The photocurable ink composition according to claim 1 , wherein the content of the vinyl ether group containing (meth)acrylic esters is 10 to 40% based on the total mass of the ink composition.

Assignees

• Nakano Keitaro
• Fukumoto Hiroshi
• Nakane Hiroki
• Kida Hiroaki
• Saito Toru
• Sato Chigusa
• Seiko Epson Corp

Inventors

• Nakano Keitaro
• Fukumoto Hiroshi
• Nakane Hiroki
• Kida Hiroaki
• Saito Toru
• Sato Chigusa

Classifications

• C09D11/101 Primary

  Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing · CPC title

• B41J11/002

  Curing or drying the ink on the copy materials, e.g. by heating or irradiating · CPC title

• B41J2/2107 Primary

  characterised by the ink properties (supplying ink in a solid state B41J2/17593) · CPC title