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.
直接热成像材料可以在较低温度下成像。这些材料包括一种非光敏、不含卤素的有机
银盐和一种还原
银离子的还原剂。这些材料还包含一种含有至少2个碳原子的卤素化合物,在存在
银源的情况下,在60到141°C的温度范围内加热时,能够释放其卤素以形成
银卤化物。