Radiographic image forming film-screen system with blue pigment

Details Radiographic image forming film-screen system with blue pigment Radiographic image forming film-screen system with blue pigment

1997-01-22

1998-09-22

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430139, 430502, 430965, 430966, G03C 1825, G03C 517

Patent

active

058112294

ABSTRACT:
An image-forming film-screen system for medical diagnostic imaging is disclosed comprising a light-sensitive silver halide photographic film material in operative association with at least one intensifying screen comprising on a support a layer of a visible light emitting luminescent phosphor, the said film material comprising a support and on at least one side thereof a light-sensitive silver halide emulsion layer having spectrally sensitized tabular silver halide and a non-light-sensitive protective layer, wherein said protective layer contains a polymeric compound selected from the group consisting of gelatin, a synthetic, semi-synthetic or natural substitute for gelatin and latex (co)polymers, in an amount of at least 0.4 g per m.sup.2 ; characterized in that between a light-sensitive silver halide emulsion layer and said protective layer there is an intermediate layer comprising a blue colored pigment in dispersed form, having a solubility in isopropanol at 25.degree. C. of less than 10 mg per liter.

REFERENCES:
patent: 3705807 (1972-12-01), Busatto
patent: 4900652 (1990-02-01), Dickerson et al.
patent: 5213951 (1993-05-01), Delfino et al.
patent: 5252443 (1993-10-01), Dickerson
patent: 5468599 (1995-11-01), Biavasco et al.

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