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US 6,440,651 B1Granted
Concentrated photographic fixer additive and fixing compositions and method of photographic processing
AssigneeEastman Kodak Company
InventorsJean M. Buongiorne, Mary E. Craver, Ramanuj Goswami
Life of this patent
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Abstract
Concentrated aqueous photographic fixing compositions include a photographic fixing agent and a compound represented by Structure I wherein R is carboxy or sulfo, m is an integer of from 0 to 7 and n is an integer of from 2 to 5. This compound is provided in a concentrated aqueous fixer additive composition. These compositions can be used to provide images in color photographic materials, and particularly in color reversal films, with reduced residual sensitizing dye stain.
Claims5
A concentrated fixer additive composition consisting essentially of:
- a) from about 0.01 to about 0.5 mol/l of a compound of having Structure I
- wherein R is carboxy or sulfo, m is an integer of from 0 to 5 and n is an integer of from 2to 7, and
- b) water.
Dependencies are inferred from the claim text.