Photographic elements with j-aggregating carbocyanine infrared s

Details Photographic elements with j-aggregating carbocyanine infrared s Photographic elements with j-aggregating carbocyanine infrared s

1995-11-30

1998-09-15

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430585, 430587, 430933, 430944, G03C 118

Patent

active

058076662

ABSTRACT:
The present invention provides a photographic element comprising an infrared light sensitive silver halide emulsion layer containing silver halide grains that exhibit low cubicity and are sensitized to a maximum absorption over 700 nm with a carbocyanine dye free of water soluble groups, wherein said layer additionally comprises a pyrimidino- or triazino-stilbene compound containing at least 6 sulfonic acid or sulfonate substituents.

REFERENCES:
patent: 3615634 (1971-10-01), Bergisch-Neukirchen et al.
patent: 3615635 (1971-10-01), Gotze et al.
patent: 4115124 (1978-09-01), Hamilton et al.
patent: 4138266 (1979-02-01), Hinata et al.
patent: 4199360 (1980-04-01), Hinata et al.
patent: 5296343 (1994-03-01), Hioki et al.
patent: 5338657 (1994-08-01), Kato

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