(19)
(11) EP 1 745 940 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.07.2007 Bulletin 2007/28

(43) Date of publication A2:
24.01.2007 Bulletin 2007/04

(21) Application number: 06252185.1

(22) Date of filing: 22.04.2006
(51) International Patent Classification (IPC): 
B41M 3/14(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 20.07.2005 US 700994 P

(71) Applicant: JDS Uniphase Corporation
Milpitas CA 95035 (US)

(72) Inventors:
  • Raksha, Vladimir P.
    California 95403 (US)
  • Coombs, Paul G.
    California 95405 (US)
  • Teitelbaum, Neil
    Ontario K1S 5C4 (CA)
  • Markantes, Charles T.
    California 95401 (US)
  • Argoitia, Alberto
    California 95405 (US)

(74) Representative: McKechnie, Neil Henry et al
Kennedys Patent Agency Limited 185 St Vincent Street
Glasgow G2 5QD
Glasgow G2 5QD (GB)

   


(54) A two-step method of coating an article for security printing


(57) A two-step method of making of a security printed image is disclosed and includes coating of the surface of a substrate with a predetermined image shape with an ink containing flaked magnetic pigment in a predetermined concentration, exposing a wet printed image to a magnetic field to align magnetic particles in a predetermined manner, allowing the ink to cure, and coating the substrate with a second printed image on the top of the first image. The second printed image with the same or different image shape is printed with another ink containing clear or dyed ink vehicle mixed with flaked magnetic pigment in a low concentration, exposed to the magnetic field of the same or different configuration as the first printed image and cured until the ink is dry.





Search report