Title:
CLEAR MAGNETIC INTAGLIO PRINTING INK
Document Type and Number:
Japanese Patent JP2015120913
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a new intaglio printing ink composition comprising a clear magnetic pigment, which is useful for security documents such as banknotes, passports and cards.SOLUTION: An ink or an ink composition for an intaglio steel die printing process is provided, which has a viscosity at 40°C of 3 to 15 Pa s, preferably 5 to 10 Pa s and comprises a polymeric organic binder including a carboxylic acid group and magnetic pigment particles. The magnetic pigment particle comprises a magnetic core material selected from iron, FeOand FeO, which is coated with at least one layer of another material. The coating layer, in a single state or a combination of layers, imparts specific optical properties to the pigment particle, the optical properties in a visible and/or a near IR region selected from a high specular reflectance or diffuse reflectance, spectrally selective absorption or reflection, and angle-dependent absorption or reflection; and allows formulation of an ink having a large gamut of color and other optical functionalities.
Inventors:
JESSICA KRUEGER
DEGOTT PIERRE
CLAUDE-ALAIN DESPLAND
CHRISTINE REINHARD
ANDREA V FIRTH
DEGOTT PIERRE
CLAUDE-ALAIN DESPLAND
CHRISTINE REINHARD
ANDREA V FIRTH
Application Number:
JP2014259186A
Publication Date:
July 02, 2015
Filing Date:
December 22, 2014
Export Citation:
Assignee:
SICPA HOLDING SA
BANK OF CANADA
BANK OF CANADA
International Classes:
C09D11/037; B42D25/369; B42D25/378; C09D7/62; C09D11/50
Domestic Patent References:
| JPH1060350A | 1998-03-03 | |||
| JP2004518565A | 2004-06-24 | |||
| JPH1060350A | 1998-03-03 | |||
| JP2004518565A | 2004-06-24 |
Foreign References:
| WO2007060133A1 | 2007-05-31 | |||
| WO2008148201A1 | 2008-12-11 | |||
| WO2007060133A1 | 2007-05-31 | |||
| WO2008148201A1 | 2008-12-11 |
Attorney, Agent or Firm:
Ikeda adult
Kazuhiro Yamaguchi
Masakazu Noda
Kazuhiro Yamaguchi
Masakazu Noda