RU95109552A - Method to produce brown nickel-bearing nonsilver photographic image on radiographic film - Google Patents

Abstract

FIELD: chemical photographic industry and industrial radiography, additional treatment of halogensilver photographic materials. SUBSTANCE: to increase photographic sensitivity of halogensilver material they use method of production of brown nickel-bearing nonsilver photographic image on radiographic film, that provides for bleaching in solution, that has nickel chloride (II), trisubstituted sodium citrate, potassium hexocyanoferrate (III) and water, fixation in 25 % water solution of sodium thiosulfate, toning in water solution, that has (g/l): dithiooxamide (15.0 - 25.0), formaldehyde (7.0 - 15.0), potassium hydroxide (10.0 - 15.0),. Toning stage is realized for 6 - 10 minutes under temperature of 18 - 20 C. Method allows to increase photographic sensitivity by 1.5 - 2 times. EFFECT: increased photographic sensitivity. 1 tbl

Claims (1)

The invention relates to the field of additional processing of silver gel photographic materials and can be implemented in the chemical-photographic industry and industrial radiography. In order to increase the photographic sensitivity of silver halide material, a method is used to obtain a brown nickel-containing non-silver photographic image on a radiographic film, including bleaching in a solution containing nickel (II) chloride, trisubstituted sodium citrate, potassium hexacyanoferrate (Ill) and water, fixing in 25% aqueous sodium thiosulfate solution, tinting in an aqueous solution containing, g / l: dithiooxamide 15.0 - 25.0, formaldehyde 7.0 - 15.0, potassium hydroxide 10.0 - 15.0, and the tinting stage is carried out wish to set up 6 - 10 min at 18 - 20 ° C. As a result of using this method, the photographic sensitivity increases by 1.5 - 2 times.