发明授权
- 专利标题: Direct positive color light-sensitive material comprising a DIR coupler and a pyrazoloazole coupler, and a process for forming a direct positive image
- 专利标题(中): 包含DIR成色剂和吡唑并唑成色剂的直接正色感光材料以及形成直接正像的方法
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申请号: US75008申请日: 1987-07-17
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公开(公告)号: US4801520A公开(公告)日: 1989-01-31
- 发明人: Noriyuki Inoue , Tatsuo Heki
- 申请人: Noriyuki Inoue , Tatsuo Heki
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX61-169523 19860718
- 主分类号: G03C1/36
- IPC分类号: G03C1/36 ; G03C1/485 ; G03C7/00 ; G03C7/26 ; G03C7/30 ; G03C7/305 ; G03C7/32 ; G03C7/407
摘要:
A direct positive color light-sensitive material comprising a support having provided thereon at least one photographic emulsion layer containing unfogged internal latent image type silver halide particles and a color image forming coupler, wherein said color image forming coupler itself is substantially nondiffusible and produces or releases a dye upon oxidation coupling with a color developing agent, and said light-sensitive material contains at least one development inhibitor-releasing type coupler selected from the group consisting of compounds represented by formulae (D-I) and (D-II)Coup--Z (D-I)Coup--TIME--Z (D-II)wherein Coup represents a coupler residual group; Z represents a diffusible development inhibitor or a precursor thereof; and TIME represents a timing group.