EP 1103847 B1 20020911 - Silver halide photographic film material exhibiting increased covering power and "colder" blue-black image tone
Title (en)
Silver halide photographic film material exhibiting increased covering power and "colder" blue-black image tone
Title (de)
Photographisches Silberhalogenid-Filmmaterial mit erhöhter Deckkraft und einem "kälteren" blauschwarzen Bildton
Title (fr)
Pellicule photographique à l'halogénure d'argent ayant un pouvoir opacifiant accru et un ton de l'image noir bleuâtre "plus froid"
Publication
Application
Priority
- EP 00203916 A 20001107
- EP 99204010 A 19991126
Abstract (en)
[origin: EP1103847A1] A black-and-white silver halide photographic film material, particularly suitable for use in radiography, has been disclosed, said material comprising a transparent film support having first and second major surfaces coated with a subbing layer, further coated adjacent thereto on one side (for a single-side coated material) or on both sides (for a duplitized material) of said film support and overcoated with a protective antistress layer, a light-sensitive silver halide emulsion layer having chemically and spectrally sensitized ä111ü tabular hexagonal grains, accounting for at least 50 % of the total projective surface of all grains, wherein said film material is coated with a low amount of silver and wherein said protective antistress layer(s) and/or another hydrophilic non-light-sensitive layer comprise(s) a compound according to general formula (I) in an amount of at least 0.5 mmole per mole of coated silver halide, as claimed. A radiographic screen/film combination has also been disclosed, said combination comprising a duplitized film as described herein sandwiched between a pair of supported or self-supporting X-ray intensifying screens emitting radiation in the wavelength range for which said material has been made spectrally sensitive in order to obtain a black-and-white image after exposure of said screen/film combination, followed by processing of the film material.
IPC 1-7
IPC 8 full level
G03C 1/005 (2006.01); G03C 1/76 (2006.01); G03C 5/17 (2006.01); G03C 1/12 (2006.01); G03C 1/29 (2006.01); G03C 1/34 (2006.01); G03C 1/37 (2006.01); G03C 1/91 (2006.01)
CPC (source: EP)
G03C 1/0051 (2013.01); G03C 1/7614 (2013.01); G03C 5/17 (2013.01); G03C 1/005 (2013.01); G03C 1/122 (2013.01); G03C 1/29 (2013.01); G03C 1/346 (2013.01); G03C 1/37 (2013.01); G03C 1/91 (2013.01); G03C 2001/0055 (2013.01); G03C 2001/7635 (2013.01); G03C 2007/3025 (2013.01); G03C 2200/03 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00203916 A 20001107