| 摘要 |
Disclosed is a panchromatic silver halide photographic emulsion for use in DTR process which exhibits a high sensitivity, especially to blue light, a high contrast and a high resolving power and a photographic element containing said silver halide emulsion layer. Said emulsion contains a blue-sensitizing dye represented by the general formula [I]: <IMAGE> [I] (wherein Z1, Z2, R1, R2, X1 and m are as defined before). Said emulsion may contain, as green- and red-sensitizing dyes, those represented by the general formula [II] and [III] to attain more effectively the objects: <IMAGE> [II] <IMAGE> [III] (wherein Z3, Z4, Z5, Z6, R3, R4, R5, R6, R7, R8, X2, X3 and m are as defined before). Said photographic element is an excellent ligtographic printing plate.
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