Title:
光硬化型インクジェット印刷用インク組成物及び印刷物
Document Type and Number:
Japanese Patent JP5400772
Kind Code:
B2
Abstract:
An object of the present invention is to provide a photocurable ink composition for ink-jet printing, which exhibits excellent curing properties in response to light from light emitting diodes (LEDs), is adhered well to a polyvinyl chloride sheet such as tarpaulin or a vinyl chloride resin sheet, can sufficiently reduce cockling, has a low viscosity but a high flash point, and can achieve both of good jetability at a normal temperature and good safety properties owing to these properties. The ink composition for ink-jet printing includes at least: photopolymerizable compounds; a photopolymerization initiator; and a sensitizer, and has a flash point of higher than 60°C when measured with a SETA closed-cup flash point tester by a method in accordance with JIS K2256. The photopolymerizable compounds include 2-methoxyethyl acrylate and/or 2-ethoxyethyl acrylate, and N-vinyl caprolactam, and an acrylated amine compound having two photopolymerizable functional groups and two amino groups in the molecule. The total amount of 2-methoxyethyl acrylate and/or 2-ethoxyethyl acrylate is 20 to 50% by mass of the photocurable ink composition for ink-jet printing. The photopolymerization initiator includes a compound that comes to function as an initiator in response to light having a wavelength of 450 to 300 nm. The sensitizer includes a compound that comes to function as a sensitizer in response to light having a wavelength of 400 nm or longer.
Inventors:
Tatsuro Tsuchiya
Shinya Mizutani
Taichi Ono
Shinya Mizutani
Taichi Ono
Application Number:
JP2010515915A
Publication Date:
January 29, 2014
Filing Date:
June 04, 2009
Export Citation:
Assignee:
SAKATA INX CORP.
International Classes:
C09D11/00; B41J2/49; B41M5/00
Domestic Patent References:
| JP2008031269A | 2008-02-14 | |||
| JP2006257302A | 2006-09-28 | |||
| JP2009035650A | 2009-02-19 |
Foreign References:
| WO2004099272A1 | 2004-11-18 |
Attorney, Agent or Firm:
Patent business corporation Yasutomi international patent firm