Title:
WHITE INK COMPOSITION FOR PHOTOCURABLE INKJET PRINTING
Document Type and Number:
WIPO Patent Application WO/2016/136098
Kind Code:
A1
Abstract:
The present invention addresses the issue of providing a white ink composition for photocurable inkjet printing, that has: good curing properties in thin film when curing using ultraviolet rays, in particular ultraviolet rays having a light-emitting diode (LED) as a light source therefor; and good adhesiveness, solvent resistance, scratch resistance, discharge stability, and storage stability for polyvinyl sheets, etc. The white ink composition for photocurable ink jet printing has a viscosity of no more than 100 mPa·s at 25°C and contains a photopolymerizable component, titanium dioxide, and 3%-20% by mass of an acylphosphine oxide-based photopolymerization initiator relative to the total mass of the photopolymerizable component, said photopolymerizable component not substantially including vinylformamide and containing, relative to the total mass of the photopolymerizable component: 0.1%-20% by mass of an ether group-containing monofunctional monomer; 35%-70% by mass of an cyclic structure-containing monofunctional monomer; ; and 5%-40% by mass of a polyfunctional monomer.
Inventors:
HIROSE TADASHI (JP)
FUKE KAZUHIRO (JP)
FUKE KAZUHIRO (JP)
Application Number:
PCT/JP2015/085005
Publication Date:
September 01, 2016
Filing Date:
December 15, 2015
Export Citation:
Assignee:
SAKATA INX CORP (JP)
International Classes:
C09D11/30; B41J2/01; B41M5/00
Foreign References:
| JP2012116934A | 2012-06-21 | |||
| JP2010116460A | 2010-05-27 | |||
| JP2012140491A | 2012-07-26 | |||
| JP2012158638A | 2012-08-23 | |||
| JP2012092291A | 2012-05-17 | |||
| JP2012116928A | 2012-06-21 | |||
| JP2015168723A | 2015-09-28 |
Other References:
See also references of EP 3263656A4
Attorney, Agent or Firm:
HASEBE Zentaro et al. (JP)
Zentaro Hasebe (JP)
Zentaro Hasebe (JP)
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