Processing radiographic films with low developer replenishment u

Details Processing radiographic films with low developer replenishment u Processing radiographic films with low developer replenishment u

1996-04-26

1997-07-29

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Regenerating image processing composition

430399, 430445, 430448, 430487, G03C 531

Patent

active

056520867

ABSTRACT:
Radiographic films can be processed using conventional developing agents, either in the films or in solution. The films also include from about 0.02 to about 1 mg/dm.sup.2 of thialkylene bis(ammonium salt). The solution used for development is replenished at a low rate with a chemical base as the sole developer replenishing agent. The chemical base maintains developer composition pH at from about 9 to about 11 and enables processing of films without the use of conventional developer replenishing solutions or replenishment rates.

REFERENCES:
patent: 5229248 (1993-07-01), Sanpei et al.
patent: 5382496 (1995-01-01), Sakai et al.
patent: 5474879 (1995-12-01), Fitterman et al.
patent: 5578414 (1996-11-01), Yamamoto et al.

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