Chromogenic media responsive to environmental conditions
US7919433B2 · kind B2 · utility
0Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2006 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Apr 27, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/282
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to chromogenic material that may respond and shift in color due to environmental conditions such as heat, light or humidity. The light may include both visible and non-visible light, such as ultraviolet light. The chromogenic material may therefore provide a method to independently develop a latent image on a given substrate, and in particular, to a substrate that includes conventional thermosensitive image forming media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.