Radiation imagery chemistry: process – composition – or product th – Imaged product – Structurally defined
Patent
1981-06-11
1982-12-07
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Imaged product
Structurally defined
430 9, 430367, 430370, 430427, 430430, 430432, G03C 700, G03C 526
Patent
active
043627960
ABSTRACT:
The present invention relates to a photographic print and process of making the same wherein the print presents highlights by a build-up of high reflective, e.g. specularly reflective, metal in the highlighted areas which would otherwise print as blank or very light-toned areas of exposed paper or film. The gradient areas are preferably defined by spaced, specularly reflective areas optionally interspersed with conventional deposit of particulate silver. The method of fabricating such article includes an initially conventional development step, followed by a second development step wherein the silver halide areas remaining after the first development step are converted into increments of specularly reflective silver. An etching step may be interposed between the conventional development step and the development step leading to the creation of specular areas.
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Glatkides, Photographic Chemistry, 1958, pp. 189-199, Chap. XIII, "Toning".
Wall, Photographic Facts & Formula, 1924, pp. 216-248.
Wade, Alternative Photographic Processes, 1978, p. 95.
Basseches Mark T.
Basseches Paula T.
Downey Mary F.
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