Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Developing
Patent
1997-10-28
1999-03-02
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Post imaging processing
Developing
430264, 430446, 430603, G03C 529
Patent
active
058769072
ABSTRACT:
An image formation method, which comprises the steps of imagewise exposing a silver halide photographic material comprising a support having thereon at least one layer of a silver halide emulsion chemically sensitized with at least one selenium or tellurium compound, and then subjecting the material to development-processing with a developer containing substantially no dihydroxybenzene developing agent but containing a developing agent represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each represents a hydroxyl group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonylamino group, a mercapto group or an alkylthio group; P and Q are the same or different and each represents a hydroxyl group, a carboxyl group, an alkoxy group, a hydroxyalkyl group, a carboxyalkyl group, a sulfo group, a sulfoalkyl group, an amino group, an aminoalkyl group, an alkyl group, an aryl group or a mercapto group, or P and Q may represent an atomic group capable of forming a 5- to 8-membered ring by combined with each other and further by associating with two vinyl carbon atoms to which R.sub.1 and R.sub.2 are attached respectively and one carbon atom to which Y is attached; and Y represents .dbd.O or .dbd.N--R.sub.3, wherein R.sub.3 represents a hydrogen atom, a hydroxyl group, an alkyl group, an acyl group, a hydroxyalkyl group, a sulfoalkyl group or a carboxyalkyl group.
REFERENCES:
patent: 4478928 (1984-10-01), Hess et al.
patent: 5098819 (1992-03-01), Knapp
patent: 5236816 (1993-08-01), Purol et al.
patent: 5340695 (1994-08-01), Yamaguchi
patent: 5340704 (1994-08-01), Ezoe et al.
patent: 5384232 (1995-01-01), Bishop et al.
Fuji Photo Film Co. , Ltd.
Le Hoa Van
LandOfFree
Image formation method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image formation method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image formation method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-421195