Color forming composites capable of multi-colored imaging and associated systems and methods
US7575844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2007 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jun 25, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Composites, methods, and systems for production of multi-color images which are developable at various wavelengths are disclosed and described. The color forming composite can include a first color forming layer having a first polymer matrix, a first color former, and a first developer where the first color former and the first developer can be in separate phases within the first color forming layer; a second color forming layer having a second polymer matrix, a second color former, and a second developer where the second color former and the second developer can be in separate phases within the second color forming layer; and at least one radiation absorber. The radiation absorber can be present in at least one of the first or second color forming layers. Additionally, the first color forming layer can have a first extinction coefficient that is higher than the second extinction coefficient of the second color forming layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.