发明授权
US06225036B1 Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response
失效
含有可裂解的电子给体的彩色照相元件与一个等效的成色剂和淀粉胶溶片状乳液组合,用于改善照相反应
- 专利标题: Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response
- 专利标题(中): 含有可裂解的电子给体的彩色照相元件与一个等效的成色剂和淀粉胶溶片状乳液组合,用于改善照相反应
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申请号: US09533732申请日: 2000-03-23
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公开(公告)号: US06225036B1公开(公告)日: 2001-05-01
- 发明人: Joe E. Maskasky , Kenneth J. Reed , Victor P. Scaccia , James A. Friday
- 申请人: Joe E. Maskasky , Kenneth J. Reed , Victor P. Scaccia , James A. Friday
- 主分类号: G03C146
- IPC分类号: G03C146
摘要:
A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising 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, 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 of said emulsion layers comprises tabular grains having {111} major faces containing greater than 50 mole percent bromide, and accounting for greater than 50 percent total grain projected area precipitated in a peptizer that is a water dispersible cationic starch, and contains a fragmentable electron donating sensitizer.
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