Processing of radiographic materials having emulsion grains rich

Details Processing of radiographic materials having emulsion grains rich Processing of radiographic materials having emulsion grains rich

1999-05-03

2000-05-23

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Developing

430446, G03C 526

Patent

active

06066441&

ABSTRACT:
A method is disclosed of processing an exposed black-and-white light-sensitive silver halide photographic material having silver halide, coated in an amount, expressed as an equivalent amount of silver nitrate of less than 6 g/m.sup.2 comprising the steps of developing, fixing, rinsing and drying, making use in the developing step of an ascorbic acid type developer and of an equivalent developer replenisher providing a regeneration amount of less than 150 ml/m.sup.2, characterized in that the said material has a buffering capacity of less than 6 mmole/m.sup.2, wherein said buffering capacity is defined as the amount of alkali, expressed in mmole/square meter, required to bridge across pH differences between the material and the developer.

REFERENCES:
patent: 5618661 (1997-04-01), Sampei
patent: 5648205 (1997-07-01), Okutsu
patent: 5766832 (1998-06-01), Nishio
patent: 5780209 (1998-07-01), Yamashita

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