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 concentrated bleach composition for a silver halide color photographic photosensitive material, containing a single liquid including an ethylenediamine-tetraacetic acid-iron (III) complex salt of from 0.10 to 0.42 mol/L as a bleaching agent, an uncomplexed ethylenediaminetetraacetic acid of from 0.5 to 10 mol% with respect to the bleaching agent and a dibasic acid having a pKa of from 2.0 to 5.0 in an amoount from 0.10 to 0.40 mol/L, and having a pH value of from 2.0 to 3.5; and a concentrated one-part composition for a color developer replenisher for a color photographic photosensitive material, containing (A) a p-phenylenediamine color developing agent of from 0.08 to 0.12 mol/L, (B) a substituted hydroxyamine derivative of a specified structure of from 0.06 to 0.16 mol/L and (C) an ethylene glycol compound from 0.05 to 1.0 mol/L, and (D) having a pH value of from 12.5 to 12.8 when diluted to 3.84 times with water, and (E) substantially not containing an alkanolamine. Also a processing method for a silver halide color photographic photosensitive material, wherein a bleach-fix tank is replenished with the composition above and a concentrated fixing composition containing a thiosulfate salt from 1.0 to 3.0 mol/L in a ratio of 1:1, and the bleach-fix step is executed in a period of from 10 to 30 seconds.
摘要:
A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.
摘要:
A method is provided that is suitable for use in processing a digitally exposed translucent or transparent display material. The method includes exposing a translucent or transparent material to light emitted from a light source. The material contains at least one silver halide having a silver content of at least about 1 g/m 2 based on the area of the material. The method also includes contacting the material with a color developer solution comprising at least one color developing agent and a compound having the following formula (I): in which each of a and b independently represents 1 to 4, and in which each of X and Y independently represents a hydrogen, sodium or potassium atom. The duration of the step (b) is from about 60 to about 180 seconds.
摘要翻译:提供了一种适用于处理数字曝光的半透明或透明显示材料的方法。 该方法包括将半透明或透明材料暴露于从光源发出的光。 基于材料的面积,该材料含有银含量至少约1g / m 2的至少一种卤化银。 该方法还包括使该材料与包含至少一种显色剂和具有下式(I)的化合物的显色剂溶液接触:其中a和b各自独立地表示1至4,并且其中每个 X和Y独立地表示氢原子,钠原子或钾原子。 步骤(b)的持续时间为约60至约180秒。
摘要:
A single-part colour developing concentrate with a pH greater than or equal to 7 which contains at least 0.02 mol of a colour developer substance and at least 0.015 mol of an antioxidant per litre, characterised in that the concentrate contains 0.05 to 35 g per litre of a wetting agent soluble in water in this amount, is distinguished by very good stability in storage at low temperatures and the discharge behaviour from the concentrate bottle is considerably improved and soiling of the processing equipment is avoided. Furthermore, the optical brightener precipitation occurring in practice in the bleach fixing bath is also prevented.
摘要:
A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.
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.