Business record having a thermally imagable surface
US5984363A · kind A · utility
70Cited by
47References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermally imagable business record such as a form, tag, label or the like is provided in which selected areas of the record may be activated to form an image upon exposure to heat. In one embodiment, at least one selected area of a substrate surface contains a thermally imagable coating of initially colorless color formers and color developers while the remaining areas of the substrate are left uncoated. The substrate may be pre-coated to provide a smooth, non-porous base coat for the thermally imagable coating, and may also include a protective coating layer to protect the subsequently printed thermal image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.