Solid processing compositions for light-sensitive silver halide photographic materials
AssigneeKonica Corporation
InventorsHiroshi Yoshimoto, Shoji Nishio, Hideki Komatsu, Satomi Kawasaki
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Abstract
A processing chemical for light-sensitive silver halide photographic material, comprising a cyclodextrin compound, which can contribute a decrease in packaging materials, transportation cost and storage space, can be free from lateral cracking at the formation of tablets, and can bring about an improvement in storage stability after being formed into processing solutions (i.e., more free from occurrence of stain during developing and scratches in light-sensitive materials having been processed, caused by deposition of crystals).
Claims8
A solid composition for processing an exposed light-sensitive silver halide photographic material comprising a cyclodextrin compound and a developing agent.
A processing composition for light-sensitive silver halide photographic material comprising a cyclodextrin linked with maltose or glucose, and a slightly water-soluble organic compound selected from the group consisting of Formulae VI, VII, VIII and S, ##STR125## wherein Y.sub.1 represents hydrogen, alkali metal, or mercapto;
- R.sub.4 and Y.sub.2 are each hydrogen, halogen, nitro, amino, cyano, hydroxyl, mercapto, sulfo, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted alkoxy, hydroxycarbonyl, alkylcarbonyl, or alkoxycarbonyl;
- and n represents an integer of 1 to 4, ##STR126## wherein A represents lower alkylene having 1 to 3 carbon atoms, or polyalkylene ether which is represented by --(CH.sub.2 CH.sub.2)).sub.p, --(CH.sub.2 CH.sub.2 O).sub.p --CH.sub.2 CH.sub.2 -- or ##STR127## and does not combine with B through O, and A' represents lower alkylene having 1 to 3 carbon atoms, or polyalkylene ether represented by --(CH.sub.2 CH.sub.2 O).sub.p --CH.sub.2 CH.sub.2 -- or ##STR128## and does not combine with B through O;
- provided that A and A' are not polyalkylene ether at same time;
- p represents an integer of 2 to 30, B and B' represents --NH-- or --O--, provided that B and B' are not --O-- at the same time;
- R represents lower alkyl having 1 to 3 carbon atoms, phenyl, aralkyl, or --(CH.sub.2).sub.q --COOR', wherein q is an integer of 1 to 3 and R' represents an alkyl group having 1 to 3 to carbon atoms;
- X represents a divalent group selected from --S--, --O--, --CH.sub.2 --, ##STR129## wherein R.sup.N represents lower alkyl having 1 to 3 carbon atoms.
Dependencies are inferred from the claim text.