Supersensitization of silver halide emulsions

G - Physics – 03 – C

Patent

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96/105

G03C 1/28 (2006.01)

Patent

CA 1333343

Supersensitization of silver halide emulsions is effected by the addition of a metal chelating agent after chemical sensitization or a combination of phenylmercapto- tetrazoles and a metal chelating agent to a spectrally sensitized emulsion. The contrast of the emulsion may also be increased by the addition of this combination of materials after chemical and spectral sensitization.

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