Method of photographic processing with solution replenishment

Details Method of photographic processing with solution replenishment Method of photographic processing with solution replenishment

1996-06-20

1997-11-18

Rutledge, D.

Photography

Fluid-treating apparatus

Having fluid-circulating means

430376, G03D 302

Patent

active

056897537

ABSTRACT:
A method of redox amplification processing of a photographic color material in which the image-forming step takes place in a developer-amplifier solution containing both a photographic color developing agent and an oxidant contained in a processing tank of comparatively small volume (the processing tank). A developer-amplifier replenisher solution which is stable over an idle period of 48 hours, is provided from a tank of comparatively large volume (the reservoir) holding sufficient for replenishment over a predetermined extended period of time at a rate which is greater than 160 ml/m.sup.2 of material processed. The overflow from the processing tank is returned to the reservoir where additions are made in a predetermined manner from water and/or one or more of four solutions comprising color developing agent concentrate, oxidant concentrate, buffer concentrate and anti-oxidant concentrate.

REFERENCES:
patent: 2605684 (1952-08-01), Nagels et al.
patent: 3674490 (1972-07-01), Matejec et al.
patent: 3943541 (1976-03-01), Hirafuji
patent: 4613223 (1986-09-01), Cherry et al.
patent: 5179404 (1993-01-01), Bartell et al.
patent: 5252451 (1993-10-01), Bell
patent: 5270762 (1993-12-01), Rosenburgh et al.
patent: 5294956 (1994-03-01), Earle
patent: 5298932 (1994-03-01), Twist
patent: 5324624 (1994-06-01), Twist
patent: 5387499 (1995-02-01), Earle et al.
RD, Dec. 1989, No. 308119, pp. 993-1015, "Photographic Silver Halide Emulsions, Preparations, Addenda, Processing and Systems".

Affiliated with

Also associated with

Rating

Method of photographic processing with solution replenishment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of photographic processing with solution replenishment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of photographic processing with solution replenishment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1574372