Reversible thermosensitive recording medium and image forming and erasing method using the recording medium
US6579826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/46
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A reversible thermosensitive recording medium including a substrate; a reversible thermosensitive recording layer on the substrate, which includes an electron donating coloring compound and an electron accepting compound, wherein the recording layer achieves a colored state when heated at a temperature not lower than an image forming temperature and then cooled at a first cooling speed, and the recording layer in the colored state achieves a non-colored state when heated at a temperature lower than the image forming temperature and not lower than an image erasing temperature or when heated at a temperature not lower than the image forming temperature and then cooled at a second cooling speed relatively slow compared to the first cooling speed; and a crosslinked polymer layer including a crosslinked polymer having an ultraviolet absorbing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.