| 摘要 |
Seleno tetrazoles such as 1-phenyl-5-seleno-1,2,3,4-tetrazole, 1-allyl-5-seleno-1,2,3,4-tetrazole, etc. are used as toners in a diffusion transfer process. The toner can be incorporated in the receiving sheet or in a processing solution. These toners are particularly useful when employed in a diffusion transfer process to improve the stability of the toned image.
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