摘要:
An antifoaming agent composition for a silver halide photographic processing solution, which comprises at least one of the specified (polyoxyethylene/polyoxypropylene) copolymer as a surface active agent.
摘要:
A black-and-white photographic developing composition has improved stability and is more compatible with the environment when discarded. The composition includes one or more ascorbic acid developing agents and is essentially free of hydroquinone and similar developing agents. It comprises a mono- or disaccharide such as ribose, fructose, lactose, glucose or galactose as a stabilizing agent for the developing agent.
摘要:
A processing composition for a silver halide photographic material, which comprises at least one compound selected from the group consisting of compounds represented by the following general formulae (I) and (II):
摘要:
A photographic black-and-white reversal first developer, which is substantially free from hydroquinone and which contains at least substances a) to d): a) hydroquinonesulphonic acid, b) a polyglycol with an average molecular weight of 200 to 600, c) an anti-fogging agent, and d) an auxiliary developer, gives clear light regions and high maximum densities after reversal development and can also be used at temperatures considerably above 20° C.
摘要:
The present invention is also directed to a method of photoprocessing a photographic imaging element having a processing-solution-permeable overcoat that comprises at least one water-dispersible hydrophobic polymer interspersed with a water-soluble hydrophilic polymer. During photoprocessing, a surface-active water-soluble hydrophilic polymer is leached into a photoprocessing solution. However, foaming due to the hydrophilic polymer in the photoprocessing solution is prevented by the presence of a non-ionic surfactant having an HLB of less than 12.
摘要:
A method has been described for processing an exposed black-and-white silver halide photographic film material comprising in a hydrophilic light-sensitive layer thereof a binder and silver halide grains being {111} or {100} tabular silver bromo(chloro)iodide or silver chloro(bromo)iodide grains having an average aspect ratio of from 1.2 to 50 and having a silver iodide content of less than 3 mole % based on silver with at least part of it at their grain surface, said method comprising the steps of developing in a developer, fixing in a fixer, rinsing and drying, characterized in that in said developing step the developer comprises an alkali soluble agent having preventing silver dissolution properties, being a mercapto azole compound as presented herein.
摘要:
A black-and-white silver halide developer composition has been disclosed comprising, besides one or more developing agent(s), agent(s) preventing oxidation thereof and agent(s) providing pH buffering, at least one silver complexing agent, characterized in that said silver complexing agent has a silver complexing stability ratio of at least 70% and, besides said silver complexing agent, at least one agent preventing silver dissolution characterized in that said agent preventing silver dissolution, if present in an amount of 50 mg/l of developer, makes silver content of the developer decrease in an amount of more than 50% versus in the absence thereof, without loss in speed in an amount of more than 0.10 log Exposure after processing in said developer composition.
摘要:
An aqueous solution for developing a silver halide photographic product comprises an alkanolamine in an amount greater than or equal to 0.6 mol/l, at least one wetting agent that is stable at a high pH and miscible in said developing solution, a developing agent capable of reducing the silver ions, and a quaternary ammonium salt having the following formula wherein R1, R2, R3 and R4 are independently hydrogen, an alkyl group of 1 to 4 carbon atoms, an aromatic carbocyclic group or heterocyclic group that can contain one or more nitrogen atoms, or R1 and R2 together, or R1, R2 and R3 together represent the atoms or bonds necessary for forming a ring with the nitrogen atom, having 5 or 6 atoms in the ring, and X is an anion.
摘要:
A photographic developer composition for use in the development of a black and white silver halide photographic element said composition comprises at least one developing agent and, in an amount sufficient to inhibit sludge deposition, one or more compounds selected from compounds having the formula X—R1—CONH—A—S—S—B—NHCO—R2—Y (I) wherein A and B are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group; R1 and R2 are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group; X and Y are each independently a solubilising group; and compounds having the formula X—R1—CONH—A—S—M (II) wherein A, R1 and X are as defined above, and M is either a hydrogen atom or a cationic species if the sulfur atom is in its ionized form.
摘要翻译:一种用于黑白卤化银照相元件开发的照相显影剂组合物,所述组合物包含至少一种显影剂,并且其量足以抑制污泥沉积,选自具有甲醛和A的化合物的一种或多种化合物是 各自独立地是取代或未取代的脂族,脂环族,芳族或杂环基团; R 1和R 2各自独立地是取代或未取代的脂族,脂环族,芳族或杂环基团; X和Y各自独立地是增溶基团; 并且具有甲醛基的化合物A,R 1和X如上所定义,并且如果硫原子为其离子化形式,M为氢原子或阳离子物质。
摘要:
An aqueous developer solution for use in digital film processing. The developer solution includes a developing agent and at least one surfactant or thickener. A method of processing a photographic film is also provided, and includes the steps of coating an aqueous developer solution containing at least one surfactant or thickener onto the film, thereby developing the film, and scanning the film through the coating of developer solution.