EP 0436027 A4 19911127 - METHOD OF TREATING SILVER HALIDE PHOTOGRAPHIC MATERIAL
Title (en)
METHOD OF TREATING SILVER HALIDE PHOTOGRAPHIC MATERIAL
Publication
Application
Priority
- JP 9000787 W 19900615
- JP 15406089 A 19890616
- JP 18904089 A 19890721
Abstract (en)
[origin: EP0436027A1] A method of rapidly treating an ultrahigh-contrast negative photographic material used in a photomechanical process excellent in the reproduction of originals composed of characters or dots. The above material containing a development inhibitor-releasing redox compound is treated first with a developer containing a phenol having an acid dissociation constant of 1x10<-11> to 3x10<-13> and then with an acidic hardening fixer containing a water-soluble aluminum compound. This method is particularly suited for treating stably and rapidly a photographic material for roomlight contact printing.
IPC 1-7
IPC 8 full level
G03C 5/38 (2006.01)
CPC (source: EP)
G03C 5/386 (2013.01)
Citation (search report)
- [Y] US 4569904 A 19860211 - OKUTSU EIICH [JP], et al
- [AD] US 4684604 A 19870804 - HARDER JOHN W [US]
- [A] US 4818659 A 19890404 - TAKAHASHI TOSHIRO [JP], et al
- [Y] PATENT ABSTRACTS OF JAPAN vol. 11, no. 45 (P-546) 10 February 1987, & JP-A-61 213847 (FUJI PHOTO FILM CO.LTD.) 22 September 1986,
- [Y] PATENT ABSTRACTS OF JAPAN vol. 9, no. 304 (P-409) 30 November 1985, & JP-A-60 136741 (FUJI SHASHIN FILM KK) 20 July 1985,
- [Y] PATENT ABSTRACTS OF JAPAN vol. 12, no. 102 (P-684)(2949) 05 April 1988, & JP-A-62 235947 (FUJI PHOTO FILM CO.LTD.) 16 October 1987,
- See references of WO 9016015A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0436027 A1 19910710; EP 0436027 A4 19911127; EP 0436027 B1 19981014; DE 69032701 D1 19981119; DE 69032701 T2 19990311; WO 9016015 A1 19901227
DOCDB simple family (application)
EP 90909370 A 19900615; DE 69032701 T 19900615; JP 9000787 W 19900615