Method of desensitizing a thermally imagable surface
US6015589A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Apr 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2003/028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermally imagable business record, such as a form, label, tag, or the like is provided which may be activated to form human and/or machine readable images as well as different colored images. The record comprises a substrate having a thermally imagable coating on substantially its entire surface which forms a first color when activated, and having a desensitized area on at least one area of its surface which may be overcoated with a thermally imagable coating capable of forming a different color upon activation than the first thermally imagable coating. The first thermally imagable coating provides images which are of machine readable quality, while the additional thermally imagable coatings provide images of a different color to designate selected areas on the form or label to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.