Enhanced security instant tickets via homogeneous utilization of display/overprint/backing and variable indicia
US10183213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Sep 29, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2250/58
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing method or system for making a security-enhanced scratch-off document and the document so made are disclosed. The security-enhanced document includes a substrate, variable indicia, at least one other printed portion having background noise, and a scratch-off-coating layer applied over the variable indicia to maintain the variable indicia unreadable until the scratch-off-coating is removed by being scratched off. The variable indicia includes ink having a signal-to-noise ratio relative to the background ink noise of the document's at least one other printed portion, such that the variable indicia are unreadable with reference to the at least one other printed portion when the scratch-off-coating remains intact. Additionally, digitally imaging countermeasures to unassisted and assisted mechanical SOC lift are also disclosed. These methods and systems enhance the overall appearance of the ticket as well as potentially reduce the time and setup costs between print runs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.