| 摘要 |
Provided is an improved sensitization method for photographic element. The photographic element comprises a support with at least one hydrophilic colloid layer coated thereon. The hydrophilic colloid layer comprises silver halide grains which are chemically sensitized with at least one compound represented by Formula 1: (OCH)2R1(LHSO3)2 Formula 1 and at least one selenium compound. In formula 1, R1 represents an alkyl of 1-8 carbons; and L represents and alkali metal. The selenium compound is chosen from a group consisting of R2SeCN, (R3)3PSe and ((R4)2NCO)2Se wherein R2 represents an alkyl of 1 to 8 carbons, or an alkali metal atom; R3 independently represents an aryl of 6 to 10 carbons or an alkyl of 1 to 8 carbons; and R4 independently represents an aryl of 6 to 10 carbons or an alkyl of 1 to 8 carbons.
|
