Colored thermographic media
US4985392A · kind A · utility
4Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Apr 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an intensely colored thermographic medium useful for bar-coding applications which utilize near infrared scanning systems. The medium is formed of a substrate having on at least one surface thereof a coating comprising: a transparent film-forming binder, an organic solvent soluble catechol, a metal salt and colorant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.