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

Details A two-step method of coating an article for security printing A two-step method of coating an article for security printing

D - Textiles, Paper

21

H

D21H 21/40 (2006.01) B41M 3/14 (2006.01) D21H 19/66 (2006.01) D21H 19/82 (2006.01)

Patent

CA 2545010

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.

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