Latent image systems, developers, and blockers therefor
US7858555B2 · kind B2 · utility
0Cited by
15References
14Claims
0Family size
Inventor
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/1655
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A latent image developing system, methods for imaging and developing images, and systems and methods for blocking or erasing latent images. The latent image developing system includes a substrate containing a colorless image deposited thereon. A developer instrument is used to provide a visible image. The developer instrument includes a developer composition reactive with the colorless image. An image blocking instrument is provided for concealing at least a portion of the visible image. The image blocking instrument is provided by a blocking composition applicator and an aqueous mixture of blocking composition and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.