Laser-markable compositions
US8698863B2 · kind B2 · utility
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Key dates
| Filing date | Dec 13, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Dec 13, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Laser-markable compositions and methods for providing an image on a substrate are provided. A laser-markable composition can include a pigment, a solvent, and a conductive polymer that absorbs IR radiation. This can be used to mark a substrate, using a low-energy laser. Irradiation can be by means of a near-IR laser source, and the conductive polymer can absorb radiation and transfer heat to the pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.