发明名称 SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
摘要 PURPOSE:To improve storage stability and to prevent fading in a bleaching step by incorporating a ureido type coupler and a cyclic ether compound in at least one of silver halide emulsion layers. CONSTITUTION:At least one of the silver halide emulsion layers contains the ureido type phenolic coupler having the ureido group at the 2-position represented by the formula shown on the right in which R1 is alkyl, aryl, or a heterocyclic group; Ar is aryl; and X is H or a group to be released by the coupling reaction with the oxidation product of a color developing agent. This layer also contains the cyclic ether compound, preferably, the ones having a 3- or 6-membered ring, and one or two oxygen atoms in one ring, thus permitting fading of a dye to be eliminated in a bleaching step or a bleach-fixing step.
申请公布号 JPS62172353(A) 申请公布日期 1987.07.29
申请号 JP19860014541 申请日期 1986.01.26
申请人 KONISHIROKU PHOTO IND CO LTD 发明人 YAMADA YOSHITAKA;SHIMAZAKI HIROSHI
分类号 G03C7/26;G03C7/30;G03C7/34 主分类号 G03C7/26
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