Laser ablation for latent image indicia
US12036805B2 · kind B2 · utility
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9References
10Claims
0Family size
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Key dates
| Filing date | Oct 27, 2021 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Jan 13, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/0015
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system and method for creating latent image indicia that includes a variable mark. The latent image indicia is made of pigmented ink that can only be viewed when illuminated with a specific frequency of light. The pigmented ink is printed in a solid patch by a conventional printing process. The variable mark in the pigmented ink is created by laser ablation of the pigment. The laser ablation is done after the ink printing as a separate step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.