Photothermographic recording material comprising IR-sensitizing dyes
US5958667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Jul 8, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photothermographic recording material comprising a support and a photo-addressable thermally developable element containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith, photosensitive silver halide spectrally sensitized to wavelengths >700 nm with a dye and in catalytic association with the substantially light-insensitive organic silver salt and a water-soluble binder, a water-dispersible binder or a mixture of a water-soluble and a water-dispersible binder, characterized in that the photothermographic recording material has an infra-red sensitivity of less than 80 J/m.sup.2 and the dye satisfies the following test: an exposure required by a photothermographic recording material A, consisting of a polyester 100 .mu.m thick support provided with a photo-addressable thermally developable element produced as described in the description and including the dye and a compound corresponding to the formula is >90% of an exposure required by a photothermographic recording material B produced as described for the photothermographic recording material A except that the compound is omitted, the exposure of the mat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.