发明授权
- 专利标题: Direct positive color photographic materials
- 专利标题(中): 直接的彩色摄影材料
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申请号: US3790388D申请日: 1972-09-13
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公开(公告)号: US3790388A公开(公告)日: 1974-02-05
- 发明人: SHIBA K , KUBODERA S , SANO K , OKUMURA A
- 申请人: FUJI PHOTO FILM CO LTD
- 专利权人: FUJIFILM Corp
- 当前专利权人: FUJIFILM Corp
- 优先权: JP7106571 1971-09-13
- 主分类号: G03C7/00
- IPC分类号: G03C7/00 ; C07D231/52 ; G03C1/485 ; G03C7/384 ; G03C1/40
摘要:
A direct positive color photographic material having a silver halide photographic emulsion layer containing chemically fogged silver halide grains, said silver halide emulsion layer containing a magenta color coupler precursor having a pyrazole nucleus substituted by an acyloxy group at the five-position. The direct positive color photographic material containing such a magenta color coupler precursor has a high sensitivity, shows good clearness in the highlight portions, and has improved stability.