Title:
INK COMPOSITION AND PRINTED MATTER
Document Type and Number:
WIPO Patent Application WO/2019/053964
Kind Code:
A1
Abstract:
Provided is an ink composition containing: a rare earth complex containing one trivalent rare earth ion selected from the group consisting of Eu3+, Tb3+, Sm3+, Yb3+, Nd3+, Er3+, Pr3+, Ho3+, Tm3+, Dy3+, Ce3+, and Gd3+ and at least one organic ligand selected from a β-diketone ligand, a carboxylic acid ligand, a phosphine oxide ligand, and a nitrogen-containing aromatic heterocyclic ligand; and a long-afterglow luminescent material having an afterglow time of 1 second or more after excitation light irradiation is stopped.
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Inventors:
AOYAMA YUKO (JP)
SATO JUN (JP)
MURAKAMI FUMIYASU (JP)
OKADA MASATO (JP)
YOSHIHARA TOSHIO (JP)
HASEGAWA YASUCHIKA (JP)
NAKANISHI TAKAYUKI (JP)
SATO JUN (JP)
MURAKAMI FUMIYASU (JP)
OKADA MASATO (JP)
YOSHIHARA TOSHIO (JP)
HASEGAWA YASUCHIKA (JP)
NAKANISHI TAKAYUKI (JP)
Application Number:
PCT/JP2018/021245
Publication Date:
March 21, 2019
Filing Date:
June 01, 2018
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
C09D11/037; B41M3/14; C09D11/322; C09K11/06; C09K11/64; G07D7/1205
Domestic Patent References:
| WO2015002282A1 | 2015-01-08 | |||
| WO2015002295A1 | 2015-01-08 | |||
| WO2015119268A1 | 2015-08-13 |
Foreign References:
| JP2010077058A | 2010-04-08 | |||
| JP2008115225A | 2008-05-22 | |||
| JP2006117789A | 2006-05-11 | |||
| JP2000109902A | 2000-04-18 | |||
| JP2009280766A | 2009-12-03 |
Attorney, Agent or Firm:
KISHIMOTO, Tatsuhito et al. (JP)
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