Photographic element comprising an aliphatic carboxylic acid aryl hydrazide and ascorbic acid
Abstract
Abstract ARYL, HETEROCYCLIC OR ALIPHATIC CARBOXYLIC ACID ARYL HYDRAZIDES ARE EMPLOYED WITH ASCORBIC ACID AS A DEVELOPING AGENT COMBINATION FOR EXPOSED ELECTROMAGNETIC ENERGY SENSITIVE SILVER SALTS. THE DEVELOPING AGENT COMBINATION CAN BE EMPLOYED IN DEVELOPER SOLUTIONS, IN SILVER SALT PROCESSING SOLUTIONS, AS IN INCORPORATED DEVELOPING AGENT COMBINATION, AS A DEVELOPING AGENT COMBINATION IN DIFFUSION TRANSFER PROCESSES AND IN DRY PROCESSING TECHNIQUES. THE COMBINATION CAN BE LOCATED IN THE SAME OR DIFFERENT LAYERS OF A PHOTOGRAPHIC ELEMENT, OR THE HYDRAZIDE CAN BE LOCATED IN THE PHOTOSENSITIVE EMULSION LAYER AND THE ASCORBIC ACID LOCATED IN AN ACTIVATOR SOLUTION. THE PROCESS OF DEVELOPING EXPOSED PHOTOGRAPHIC ELEMENTS IN THE PRESENCE OF THE HYDRAZIDES AND ASCORBIC ACID IS DISCLOSED.
Inventors
- 👤 I Olivares
- 👤 F Bean
- 👤 G Haist
Bibliographic Details
Claims Analysis
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