Multi-solution photographic processing method using multi-compon

Details Multi-solution photographic processing method using multi-compon Multi-solution photographic processing method using multi-compon

1974-12-23

1977-06-14

Kelley, Mary F.

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

96 66R, G03C 530, G03C 538

Patent

active

040295109

ABSTRACT:
An improved silver halide film, multi-solution photographic processing method and compositions having an increased speed of processing while producing good quality images including use of a developer solution having at least two, and preferably three, different developing agents and a fixing solution which is a combination of at least two different fixing agents. The process and compositions are particularly suitable for convenient processing of x-ray film and microfilm under ordinary room temperature conditions and also for processing in small machines. Following processing, a wash in an archival quality promoting solution is beneficial for microfilm. The x-ray film processing compositions find advantageous utility in the processing of dental x-rays and may conveniently be provided in powder form, for packaging and shipping, with dissolution by the end user.

REFERENCES:
patent: 2834676 (1958-05-01), Stanley et al.
patent: 2891861 (1959-06-01), Welliver
patent: 3545971 (1970-12-01), Barnes et al.
patent: 3647459 (1972-03-01), Taber et al.
patent: 3674491 (1972-07-01), Iijima et al.
patent: 3687669 (1972-08-01), Iijima et al.
patent: 3715214 (1973-02-01), Kane
patent: 3806344 (1974-04-01), Speers
Mason, Photographic Processing Chemistry, 1966 pp. 136-141.

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