Dry silver photo-sensitive composition containing a...

Details Dry silver photo-sensitive composition containing a... Dry silver photo-sensitive composition containing a...

G - Physics

03

C

96/138

G03C 1/10 (2006.01)

Patent

CA 1139149

DRY SILVER PHOTO-SENSITIVE COMPOSITIONS * * * * * Abstract of the Disclosure Dry silver photosensitive compositions comprising an intimate mixture of a substantially light- insensitive silver compound which upon reduction gives a visible change and sufficient silver halide so that when light struck, the silver halide will catalyze said reduction to give a visible change in those areas where the silver halide has been exposed to light and the mixture heated in the presence of a reducing agent, and as a yellow acutance dye a 1-alkyl-4-nitro-methylene- quinolane, the alkyl substituent containing 1 to 4 carbon atoms.

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