发明授权
- 专利标题: Photographic material with improved development inhibitor releases
- 专利标题(中): 具有改善发展抑制剂释放的摄影材料
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申请号: US11211937申请日: 2005-08-25
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公开(公告)号: US07175975B2公开(公告)日: 2007-02-13
- 发明人: Stephen P. Singer , Christopher Grote , Robert C. Stewart , John W. Harder , David S. Ross , Janet N. Younathan , Louis Elbert Friedrich
- 申请人: Stephen P. Singer , Christopher Grote , Robert C. Stewart , John W. Harder , David S. Ross , Janet N. Younathan , Louis Elbert Friedrich
- 申请人地址: US NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: US NY Rochester
- 代理商 Sarah Meeks Roberts
- 主分类号: G03C1/46
- IPC分类号: G03C1/46 ; G03C1/08 ; G03C7/26 ; G03C7/32
摘要:
This invention relates to a multilayer silver halide photographic element, generally processed with phenylenediamine based developer solutions, comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one layer additionally contains a 2-substituted-5-amino-1-napthol DIR according to Formula (I): wherein: X is chosen from among hydrogen, halogen atoms, an alkyl group with 6 carbon atoms or less or a N-substituted carbamoyl group where the N substituent is either an alkyl group with 6 carbon atoms or less or an aryl group with 8 total carbon atoms or less; R is a carbonyl or sulfonyl group; and INH is an inhibitor of silver development. It has been found that such 2-substituted-5-amino-1-napthol based DIRs have improved properties and can provide a conventional silver halide photographic element with excellent image structure and color reproduction.
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