Photographic physical developers

Details Photographic physical developers Photographic physical developers

G - Physics

03

C

75/40, 96/57

G03C 5/30 (2006.01) G03C 5/58 (2006.01)

Patent

CA 1045874

Abstract of the Disclosure A physical developer composition for latent images comprises a mixture of at least one copper salt and at least one nickel salt and a reducing agent for copper and nickel salts wherein the nickel and copper salts are in such propor- tions that upon reduction to a metal alloy, the alloy contains from 9 to 98 mole percent copper and from 2 to 91 mole percent nickel.

210734

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