发明公开
EP0306019A2 Silver halide photographic material and method for forming an image
失效
摄影师Silberhalogenidmaterial und Methode zur Erzeugung eines Bildes。
- 专利标题: Silver halide photographic material and method for forming an image
- 专利标题(中): 摄影师Silberhalogenidmaterial und Methode zur Erzeugung eines Bildes。
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申请号: EP88114268.1申请日: 1988-09-01
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公开(公告)号: EP0306019A2公开(公告)日: 1989-03-08
- 发明人: Inoue, Nobuaki
- 申请人: FUJI PHOTO FILM CO., LTD.
- 申请人地址: 210 Nakanuma Minami-Ashigara-shi Kanagawa 250-01 JP
- 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: 210 Nakanuma Minami-Ashigara-shi Kanagawa 250-01 JP
- 代理机构: Patentanwälte Dr. Solf & Zapf
- 优先权: JP218645/87 19870901
- 主分类号: G03C1/10
- IPC分类号: G03C1/10 ; G03C1/16
摘要:
A negative silver halide photographic material composed of a support having thereon at least one chemically sensitized silver halide emulsion layer at least one hydrophilic colloidal layer containing a hydrazine derivative and a compound having substantially all absorption maxima outside the visible light region represented by formula (I):
wherein Z¹¹ and Z¹² each represents a non-metallic atomic group necessary for completing a substituted or unsubstituted heterocyclic ring selected from benzoxazole, benzothiazole, benzoselenazole, naphthoxazole, naphthothiazole, naphthoselenazole, thiazole, thiazoline, oxazole, selsnazole, selsnazoline, pyridine, benzimidazole, and quinoline; R¹¹ and R¹² each represents a substituted or unsubstituted alkyl group, provided that at least one of them is substituted with an acid radical; X represents a counter ion necessary for charge balance; and n is 0 or 1.
The photographic material exhibits high sensitivity and provides an image having high contrast and high density, with neither black pepper nor residual color in the non-image area.
wherein Z¹¹ and Z¹² each represents a non-metallic atomic group necessary for completing a substituted or unsubstituted heterocyclic ring selected from benzoxazole, benzothiazole, benzoselenazole, naphthoxazole, naphthothiazole, naphthoselenazole, thiazole, thiazoline, oxazole, selsnazole, selsnazoline, pyridine, benzimidazole, and quinoline; R¹¹ and R¹² each represents a substituted or unsubstituted alkyl group, provided that at least one of them is substituted with an acid radical; X represents a counter ion necessary for charge balance; and n is 0 or 1.
The photographic material exhibits high sensitivity and provides an image having high contrast and high density, with neither black pepper nor residual color in the non-image area.
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