Claims
- 1. Black-and-white silver halide photographic film material having first and second major surfaces coated with at least one light-sensitive silver halide emulsion layer overcoated with a protective antistress layer, said emulsion layer(s) having chemically and spectrally sensitized {111} tabular hexagonal emulsion grains or crystals rich in silver bromide in an amount covering at least 50% of the total projective grain surface of all grains, said grains further having an average equivalent volume diameter in the range from 0.3 μm up to 1.5 μm an average grain thickness of less than 0.30 μm, and an average amount of iodide from 0.05 mole % up to 0.5 mole % based on silver over the whole grain volume, characterized in that said material comprises, in an amount of at least 0.5 mmole per mole of silver halide coated, characterized in that said protective layer, said light-sensitive layer(s) or both said protective layer and said light-sensitive layer(s) comprise, in an amount of at least 0.5 mmole per mole of silver halide coated, a heteroaromatic compound according to general formula (I)
- 2. Material according to claim 1, wherein said heteroaromatic compound is a five membered heteroaromatic compound selected from the group consisting of a tetrazole, a thiadiazole, a triazole, a (benz)imidazole, a (benz)thiazole and a (benz)oxazole.
- 3. Material according to claim 1, wherein said amino-ether or amino-alcohol substituents comprise a ternary amine, according to the general formula (II)
- 4. Material according to claim 1, wherein said compound is present in the protective antistress layer(s) in an amount between 1 and 5 mmole per mole of silver halide.
- 5. Material according to claim 1, wherein the tabular grains have an average grain thickness from 0.05 up to 0.15 μm.
- 6. Material according to claim 1, wherein said silver halide grains are composed of silver bromoiodide.
- 7. Material according to claim 6, wherein said silver bromoiodide gains have all silver iodide, present on the grain surface thereof, in order to get an average amount of iodide from 0.05 mole % up to 0.5 mole % based on silver over the whole grain volume.
- 8. Material according to claim 1, wherein said grains have been made sensitive to the ultraviolet and/or blue range of the wavelength spectrum.
- 9. Material according to claim 1, wherein said grains have been made sensitive to green light in the range from 540 up to 570 nm of the wavelength spectrum.
- 10. Material according to claim 1, wherein said material has a laser mark.
- 11. Screen/film combination or system comprising a film material according to claim 8, in contact with one supported or self-supporting X-ray intensifying screen or sandwiched between a pair of said screens, wherein said intensifying screen or screens comprise(s) luminescent phosphor particles emitting at least 50% of their emitted radiation in the wavelength range for which said material, being a radiographic material, has been made spectrally sensitive.
- 12. Screen/film combination or system comprising a film material according to claim 9, in contact with one supported or self-supporting X-ray intensifying screen or sandwiched between a pair of said screens, wherein said intensifying screen or screens comprise(s) luminescent phosphor particles emitting at least 50% of their emitted radiation in the wavelength range for which said material, being a radiographic material, has been made spectrally sensitive.
- 13. Screen/film combination or system comprising a film material according to claim 10, in contact with one supported or self-supporting X-ray intensifying screen or sandwiched between a pair of said screens, wherein said intensifying screen or screens comprise(s) luminescent phosphor particles emitting at least 50% of their emitted radiation in the wavelength range for which said material, being a radiographic material, has been made spectrally sensitive.
Priority Claims (1)
Number |
Date |
Country |
Kind |
01000178.2 |
May 2001 |
EP |
|
Parent Case Info
[0001] The application claims the priority of the provisional application No. 60/308,290 filed Jul. 27, 2001.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60308290 |
Jul 2001 |
US |