Radiographic product exhibiting reduced dye stain

Details Radiographic product exhibiting reduced dye stain Radiographic product exhibiting reduced dye stain

1997-03-06

1999-10-26

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430139, 430567, 430933, 430966, G03C 114, G03C 1815

Patent

active

059725907

ABSTRACT:
The present invention concerns a radiographic product which makes it possible to obtain an image with no residual yellow coloring. The radiographic product comprises at least one photosensitive silver halide tabular grain emulsion spectrally sensitized with a spectral sensitizing dye in the blue region having an emission peak between 400 and 500 nm, and an optical brightener derived from 4,4'-diaminostilbene disulfonic acid having at least three anionic sulfo groups, put in the photosensitive layer of the radiographic products or in at least one layer situated between the photo-sensitive layer and the support. The radiographic product is applicable to radiographic systems including one or two intensifying screens.

REFERENCES:
patent: 2933390 (1960-04-01), McFall et al.
patent: 4130428 (1978-12-01), Van Doorselaer
patent: 4232112 (1980-11-01), Kuse
patent: 4587195 (1986-05-01), Ishikawa et al.
patent: 4609621 (1986-09-01), Sugimoto et al.
patent: 4639411 (1987-01-01), Daubendiek et al.
patent: 5238793 (1993-08-01), Hoyen
Research Disclosure, Vo. 231, Jul. 1983, Items 23136, pp. 249-250.

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