Infrared sensitive silver halide photographic material

Details Infrared sensitive silver halide photographic material Infrared sensitive silver halide photographic material

1992-11-17

1995-10-10

Baxter, Janet C.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430229, 430230, 430508, 430572, 430574, 430584, 430588, 430592, 430944, G03C 802

Patent

active

054569990

ABSTRACT:
The present invention provides a photographic material comprising a silver halide emulsion layer sensitized to light above 700 nm by means of an infrared sensitizing dye having a maximum absorption between 700 nm and 850 nm characterized in that said silver halide emulsion further comprises a red sensitizing dye of the cationic type having a maximum absorption between 600 nm and 700 nm. The thus obtained photographic material shows an increased sensitivity in the infrared region. The material can be used in as silver salt diffusion transfer process to prepare a lithographic printing plate.

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patent: 4910129 (1990-03-01), Takahashi et al.
patent: 5202218 (1993-04-01), Yoshida et al.

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