EP 0324391 A3 19901227 - METHOD FOR THE FORMATION OF HIGH-CONTRAST IMAGES
Title (en)
METHOD FOR THE FORMATION OF HIGH-CONTRAST IMAGES
Publication
Application
Priority
- JP 357688 A 19880111
- JP 357988 A 19880111
- JP 358388 A 19880111
Abstract (en)
[origin: EP0324391A2] A processing method for silver halide photogrphic material is disclosed, which stably provides images having high contrast and high dot quality with little degradation in sensitivity by rapid processing. In the method, a silver halide light-sensitive material having a silver halide emulsion layer containing a 3-pyrazolidone type compound, a dihydroxybenzene type compound or trihydroxybenzene type compound, is developed by a developer containing a di- or tri-hydroxybenzene type compound; a sulfite and an amino compound in the presence of a compound represented by the following Formula 1, 2 and 3; <CHEM>
IPC 1-7
IPC 8 full level
G03C 1/06 (2006.01); G03C 1/42 (2006.01); G03C 5/305 (2006.01)
CPC (source: EP)
G03C 1/061 (2013.01); G03C 1/42 (2013.01); G03C 5/305 (2013.01)
Citation (search report)
- JP S6147953 A 19860308 - KONISHIROKU PHOTO IND
- EP 0154293 A2 19850911 - FUJI PHOTO FILM CO LTD [JP]
- DE 3023099 A1 19810108 - FUJI PHOTO FILM CO LTD
- JP S62178246 A 19870805 - MITSUBISHI PAPER MILLS LTD
- DE 1817760 A1 19710211 - EASTMAN KODAK CO
- [Y] RESEARCH DISCLOSURE. vol. 181, May 1979, HAVANT GB page 246 "Direct-positive photographic products"
- [Y] PATENT ABSTRACTS OF JAPAN vol. 6, no. 18 (P-100)(896) 2 February 1982, & JP-A-56 142523 (KONISHIROKU) 6 November 1981,
- [Y] PATENT ABSTRACTS OF JAPAN vol. 6, no. 156 (P-135)(1034) 17 August 1982, & JP-A-57 74738 (KONISHIROKU) 11 May 1982,
Designated contracting state (EPC)
DE GB IT NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 89100221 A 19890107