Method for erasing image on thermoreversible recording medium
US8455161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jul 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/4753
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for erasing an image including irradiating an image formed on a thermoreversible recording medium with a laser light having a wavelength of 700 nm to 1,500 nm so as to erase the image, wherein an energy density of the laser light is in a range of the energy density which can erase the image and a center value or less of the range, wherein the thermoreversible recording medium includes a support, and a thermoreversible recording layer on the support, and wherein the thermoreversible recording layer contains a leuco dye serving as an electron-donating color-forming compound and a reversible developer serving as an electron-accepting compound, in which color tone reversibly changes by heat, and at least one of the thermoreversible recording layer and a layer adjacent to the thermoreversible recording layer contains a photothermal conversion material, which absorbs the light and converts the light into heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.