Patent · US Expired

Photographic dye diffusion transfer process and color photographic recording material suitable for this process

US4847179A · kind A · utility

3Cited by

3References

5Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Immo Boie · Cologne, DE
Manfred Peters · Bad Schwartau, DE
Wolfgang Himmelmann · Leverkusen, DE
Thomas Kaluschke · Leichlingen, DE
Gunther Schenk · Cologne, DE
Kaspar Wingender · Leverkusen, DE
Karl Frank · Linz, DE

Key dates

Filing date	Oct 19, 1987
Grant date	Jul 11, 1989
Priority date	—
Expiry date	Oct 19, 2007

Classification

Technology area (CPC G)Physics
CPC primaryG03C8/08
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Water-soluble substantially non-hardening aldehydes or water-soluble substantially non-hardening aldehyde precursor compounds are suitable as fog-reducing compounds for the photographic dye diffusion transfer process in which an imagewise-exposed color photographic recording material containing light-sensitive silver salt and a non-diffusing dye-releasing compound in at least one binder layer arranged on a layer support, is developed, preferably under the effect of heat, to produce a diffusible dye image and in which the diffusible dye image is transferred to an image receptor layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.