Photothermographic element having desired color
US6174657A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photothermographic element comprises: (a) a support bearing on one surface thereof (b) a photosensitive emulsion layer (i) a binder; (ii) a light-insensitive organic silver salt, (iii) a reducing agent, and (iv) a photosensitive silver halide emulsion; (c) an antihalation dye incorporated in the emulsion layer, in a polymer layer under the photosensitive layer, in the support, or in a backside polymer layer; and (d) one or more tinting dyes such that the final color space of the film lies within the range defined by 220.degree.<h.sub.ab <260.degree., where h.sub.ab is the psychometric hue angle, h.sub.ab =arctan(b*/a*), as defined in the CIELAB color system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.