摘要:
A photographic processing composition containing at least one compound represented by formula (I)
wherein R, R 1 and R 2 each represent a hydrogen atom, an alkyl group or an aryl group; and L 1 represents an alkylene group or an arylene group. Also disclosed a processing composition for a silver halide color photographic material containing a metal chelate compound formed from a compound represented by formula (I) and a metal salt selected from salts of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(III), Au(II) and Ce(IV). A method is also disclosed for processing a silver halide photographic material with the processing compositions.
摘要:
57 There is disclosed a novel surface-active compound, and a silver halide photographic material and a processing solution for a silver halide photographic material containing the same. The surface-active compound is represented by the following formula (I):
Wherein R 1 represents an aliphatic group, an alicyclic compound group, an aromatic group, or a heterocyclic ring; R 2 represents an aliphatic group, an alicyclic compound group, an aromatic group, a heterocyclic ring, or a group represented by -L-Z; Q 1 , Q 2 , and Q 3 each represent a single bond, an oxygen atom, a sulfur atom, or a group represented by -N(R 3 )-, in which R 3 represents a hydrogen atom or a group represented by R 2 ; L represents a divalent linking group; and Z represents an ionic group.
摘要:
Alkaline aqueous black-and-white photographic developer for processing of silver halide radiographic materials comprising (1) a hydroquinone, (2) a 3-pyrazolidone developing agent, (3) a dialdehyde hardener, (4) antifoggants, (5) a sequestering agent, (6) a sulfite antioxidant, and (7) a buffering agent wherein said sequestering agent is a cyclicaminomethane diphosphonic acid compound. Preferably, the antifoggants comprise a combination of a benzotriazole-type antifoggant, an indazole-type antifoggant and a mercaptotetrazole-type antifoggant.
摘要:
Developer compositions for silver halide photographic materials having an improved resistance to air oxidation. even if in the presence of metal ion traces, comprise the following principal constituents: a) hydroquinone or a substituted hydroquinone; b) an auxiliary superadditive developing agent. c) an alkali metal sulfite; d) an organic antifoggant agent; e) inorganic alkali agents; f) an alkanolamine; and g) a sequestering agent selected in the group of diethylenetetraminepentacetic acid, 1,3-diamino-2-propanoltetracetic acid and 1-hydroxyethylidene-1.1'- diphosphonic acid.
摘要:
A ferric and acid complex includes the reaction product of a chelant, iron oxide, a base, and a reaction promoter. The chelant has at least one carboxylic acid functionality. The reaction promoter has an Fe3+ ion. A process for preparing the ferric and acid complex in a vessel includes charging solvent, the chelant, the base, the iron oxide, and the reaction promoter into the vessel. The solvent, chelant, base, iron oxide, and reaction promoter are heated to a temperature of at least 170 °F for a period of at least about 3 hours to form the ferric and acid complex. Due to the use of the reaction promoter having the Fe3+ ion, the process for preparing the ferric and acid complex results in reduced degradation of the chelant during processing and, thus, a high quality ferric and acid complex.
摘要:
A one-part photographic developing concentrate comprising: (i) a paraphenylene diamine color developing agent; and (ii) a water-soluble organic solvent, wherein a molar ratio of sodium ion to potassium ion is at least 3, and a molar ratio of sulfate ion to carbonate ion is at least 0.25.