Process for the development of photographic materials
AssigneeEastman Kodak Company
InventorsJohn R. Fyson, Helen M. Redfearn
Life of this patent
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Abstract
A process for the development of an imagewise exposed photographic recording material containing more than 200 mg/m.sup.2 of silver comprises subjecting the photographic recording material to a development/amplification step using a developer/amplifier solution containing an oxidizing agent, and controlling the process temperature within the range of from 20 to 50.degree. C. and the process time between 5 and 20 seconds. After the development/amplification step, the photographic material can be immediately subjected to a bleach-fix step, and staining is avoided.
Claims7
A process for the development of an imagewise exposed photographic recording material containing more than 300 mg/m.sup.2 of silver, said process comprising subjecting said photographic recording material to a development/amplification step using a developer/amplifier solution containing an oxidizing agent while controlling the temperature within the range of from 20 to 50.degree. C. and the process time between 5 and 15 seconds wherein after said development/amplification step, the photographic material is immediately subjected to a bleach-fix step.
The process of 1 wherein said bleach-fix step employs a bleach-fix solution containing iron (III) in concentration of from 0.02 to 0.5 moles per liter as the oxidant, and a mixture of thiosulfate and sulfite in amounts such that the concentration of thiosulfate is from 0.05 to 1 molar.
Dependencies are inferred from the claim text.