Photographic development process

Abstract

Abstract A PHOTOGRAPHIC LIGHT-SENSITIVE MATERIAL COMPRISING A SILVER HALIDE EMULSION LAYER CONTAINING A COMPOUND CORRESPONDING TO ONE OF THE FOLLOWING STRUCTURAL FORMULAE IA OR IB: 2-A1,2-Z1,4-A2,4-Z2,6-A3,6-Z3-1,3,5,2,4,6- TRIAZATRIPHOSPHORINE OR 2-A1,2-Z1,4-A2,4-Z2,6-A3,6-Z3,8-A4,8-Z4-1,3,5,7,2,4,6,8- TETRAZATETRAPHOSPHOCINE WHEREIN: EACH OF A1, A2, A3, A4, Z1, Z2, Z3, AND Z4 STANDS FOR A CHLORINE ATOM OR A POLYOXYALKYLENE GROUP OF THE FORMULA -(OR1)N-X, AT LEAST ONE OF THE GROUPS A1, A2, A3, A4, Z1, Z2, Z3, OR Z4 BEING THE GROUP -(OR1)N-X WHEREIN N REPRESENTS AN INTEGER OF AT LEAST 5, THE -(OR1)- GROUP REPRESENTING REPEATING UNITS ENTIRELY CONSISTING OF ETHYLENE OXIDE UNITS OR A MIXTURE OF ETHYLENE OXIDE UNITS AND PROPYLENE OXIDE UNITS, AND X BEING A TERMINAL GROUP THAT IS UNREACTIVE WITH RESPECT TO AN ACTIVE HALOGEN ATOM OF AN ACID HALIDE COMPOUND AND IS SELECTED FROM THE GROUP CONSISTING OF -O-R, -OOC-R, -S-R, OR -N(-R)2 WHEREIN R IS AN ALKYL, AN ARYL, A CYCLOALKYL, OR A HETEROCYCLIC RADICAL, SAID RADICALS BEING UNREACTIVE WITH RESPECT TO SAID ACTIVE HALOGEN ATOM IS DESCRIBED. THE SILVER HALIDE EMULSION HAS A HIGH DEVELOPING ACTIVATION IN COMBINATION WITH A VERY LOW FOG PRODUCTION.

Inventors

• 👤 Jozef Frans Willems

Bibliographic Details