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US 6,245,500 B1Granted
Method for gelling a photographic coating composition and an apparatus of the same
AssigneeKonica Corporation
InventorYasuo Nishi
Life of this patent
Estimating the term…
Abstract
A method of cooling a photographic coating composition in a sol state is disclosed. The composition that includes photographic emulsion, an emulsified material or gelatin solution, or comprising combinations thereof is continuously cooled by employing heat exchanger, and after being transformed into a gel state, the resulting product is placed into a storage vessel.
Claims23
A method for gelling a photographic coating composition comprising steps of;
- cooling continuously, by a transfer heat exchange system, a photographic coating composition in a sol state to a temperature not more than the sol-gel transforming point while the photographic coating composition flows, said coating composition containing a photographic emulsion, an emulsified material or gelatin solution, or containing combinations thereof into gel state, and
- receiving the photographic coating composition in a gel state in a storage vessel.
Dependencies are inferred from the claim text.