| 摘要 |
Direct thermographic materials can be imaged at lower temperatures. These materials include a non-photosensitive, non-halogen-containing organic silver salt and a reducing agent for silver ions. The materials also contain a halogen-containing compound that has at least 2 carbon atoms and is capable of releasing its halogen to form silver halide when heated to a temperature between 60 and 141° C. in the presence of source of silver.
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