| 摘要 |
PURPOSE:To obtain the titled material having a high stability and capable of maintaining a prescribed sensitivity for a preservation of long period by incorporating a coloring matter contg. at least one of a tellurazolium nucleus or a tellurazolidinylidene nucleus having a condensed aromatic ring as a constituting element to the titled material. CONSTITUTION:The titled material is comprised of the coloring matter contg. at least one of the tellurazolium nucleus or the tellurazolidinylidene nucleus having the condensed aromatic ring as the constituting element. The preferable coloring matter as mentioned above is for example, the coloring matter as shown by formulas I and II. As the titled material contains said coloring matter, the titled material having a good sensitivity and a less tendency for generating a fog and also capable of preventing a deterioration of the sensitivity due to storage of the titled material, is obtd. |
