Invention Grant
- Patent Title: Two-step method of coating an article for security printing by application of electric or magnetic field
- Patent Title (中): 通过施加电场或磁场涂覆安全印刷的物品的两步法
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Application No.: US11415027Application Date: 2006-05-01
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Publication No.: US07674501B2Publication Date: 2010-03-09
- Inventor: Vladimir P. Raksha , Paul G. Coombs , Neil Teitelbaum , Charles T. Markantes , Alberto Argoitia
- Applicant: Vladimir P. Raksha , Paul G. Coombs , Neil Teitelbaum , Charles T. Markantes , Alberto Argoitia
- Applicant Address: US CA Milpitas
- Assignee: JDS Uniphase Corporation
- Current Assignee: JDS Uniphase Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Pequignot + Myers LLC
- Agent Matthew A. Pequignot
- Main IPC: B05D1/06
- IPC: B05D1/06 ; B05D1/36 ; B05D1/38 ; B05D3/14
Abstract:
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.
Public/Granted literature
- US20060194040A1 Two-step method of coating an article for security printing Public/Granted day:2006-08-31
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