Method and device for processing a photographic film

Details Method and device for processing a photographic film Method and device for processing a photographic film

1996-07-19

1997-10-14

Rutledge, D.

Photography

Fluid-treating apparatus

Having fluid filter

396626, G03D 302

Patent

active

056781121

ABSTRACT:
The invention concerns a method and a device for processing a photographic film.
The process comprises the following steps: a) circulating the film (2) in a series of processing baths (5, 6, 7, 8), each of the baths having a rinsing zone (53, 62, 73, 82) including one or more tanks; b) recovering and treating the waste water coming from all the rinsing zones in a single nanofiltration device (100), common to all the processing baths; and c) recycling the permeate (106) from the nanofiltration device (100) in each of the rinsing zones (43, 62, 73, 82) of each of the processing baths (5, 6, 7, 8).
Application to the processing of photographic films.

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patent: 4987438 (1991-01-01), Goto et al.
patent: 5164092 (1992-11-01), Munch
patent: 5502534 (1996-03-01), Lynch et al.

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