发明名称 Dry developable photographic product - using metal chelate - and heavy metal salt pref silver halide
摘要 <p>An image is formed using a photosensitive heavy metal salt pref. silver halide, together with an image forming cpd. which is decomposed by the free metal from the salt. The image may be formed either by prolonged exposure, heating to 65-150 degrees C or exposure to red-infra-red 600-800 nm. The image forming cpd. is a metal chelate of an organic acid; the metal may be Ag, Cu, Ni, Sn or Au. Prefd. is a system contg. 1 mol. of silver ethylenediaminotetraacetate to 1-4 mols of silver bromide, both being present in an emulsion of pH less than 5. Dry developable system having greater sensitivity than other thermographic systems.</p>
申请公布号 FR2096130(A5) 申请公布日期 1972.02.11
申请号 FR19710020922 申请日期 1971.06.09
申请人 ITEK CORP 发明人
分类号 G03C1/498;G03C1/72;G03C5/26;(IPC1-7):03C1/00 主分类号 G03C1/498
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