Title:
SYSTEM FOR PRODUCING SECURE TONER-BASED IMAGES AND METHODS OF FORMING AND USING THE SAME
Document Type and Number:
WIPO Patent Application WO2003097368
Kind Code:
A3
Abstract:
A system and method for printing documents that are difficult to forge and that are easy to visually verify are disclosed. The system includes a colorant for printing an image on a surface of a document and a dye for forming a latent version of the image underneath the surface and a substrate that includes a migration agent for facilitating the migration of the dye through at least a portion of the substrate. The mirgration-enhancing agent may be coated onto a portion of the substrate or embedded within the substrate.
Inventors:
RILEY MICHAEL R
HEILMAN KEVIN L
COOPER JOHN
NASSER NABIL
HEILMAN KEVIN L
COOPER JOHN
NASSER NABIL
Application Number:
PCT/US2003/015381
Publication Date:
April 15, 2004
Filing Date:
May 15, 2003
Export Citation:
Assignee:
TROY GROUP INC (US)
International Classes:
G03G7/00; G03G9/083; G03G9/087; G03G9/09; G03G9/08; G03G9/097; G03G21/04; (IPC1-7): G03G9/00; G03G9/10; G03G5/00; G03C3/00
Foreign References:
| US5698616A | 1997-12-16 | |||
| US5666598A | 1997-09-09 | |||
| US5366833A | 1994-11-22 |
Other References:
See also references of EP 1504310A4
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