发明名称 PHOTOGRAPHIC ELEMENT
摘要 PURPOSE: To improve photographic characteristics such as the light stability and the light reproducibility of a dye while keeping sufficient reactivity, density and speed by containing a support carrying one kind of a photographic silver halide emulsion layer containing a specific dye forming bicyclic pyrazo based coupler in combination. CONSTITUTION: This photographic element contains the support carrying at least one kind of the photographic silver halide emulsion layer containing the dye forming bicyclic pyrazo based coupler having full substituted carbon at the 6-position. The dye forming coupler contains a ballast fragment containing a group containing a substituted aryl group bonded with a group containing a secondary group selected from carbon amide, carbamoyl or the like through a hetero group selected from a group composed of oxy, thio and amine. The ballast connection group atα-position to the bicyclic ring is a substituted methylene group and the aryl group contains at least one >=10C (optionally substituted) alkyl or alkoxyl substituent.
申请公布号 JPH0777786(A) 申请公布日期 1995.03.20
申请号 JP19930317991 申请日期 1993.12.17
申请人 EASTMAN KODAK CO 发明人 SANDARAMU KURISHIYUNAMURUTEII;SUTANREE DABURIYU KOOWAN
分类号 G03C7/00;G03C7/38;(IPC1-7):G03C7/38 主分类号 G03C7/00
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