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US 5,843,630 AGranted
Concentrated solution and kit for making a photographic color developer
AssigneeEastman Kodak Company
InventorJean Pierre Masson
Life of this patent
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Abstract
A photographic concentrate for preparing a color developer comprises benzyl alcohol, water and organic solvents. This concentrate can be part of a kit for preparing a color developer along with 2 other concentrated solutions. The noted concentrated solution comprises benzyl alcohol at between 25 and 35%, water at between 3 and 8%, ethylene glycol at between 10 and 20% and diethylene glycol at between 35 and 60%.
Claims10
A concentrated solution free of color developing agent for the preparation of a color photographic developer, comprising:
- benzyl alcohol, water, ethylene glycol and diethylene glycol, characterized in that the quantity of benzyl alcohol is between 25 and 35%, the quantity of water is between 3 and 8%, the quantity of ethylene glycol is between 10 and 20% and the quantity of diethylene glycol is between 35 and 60% ;
- the percentages being based on the total weight of the concentrated solution, and the sum of the percentages not exceeding 100%.
Dependencies are inferred from the claim text.