Method for preparing a fogged typed direct positive silver halid

Details Method for preparing a fogged typed direct positive silver halid Method for preparing a fogged typed direct positive silver halid

1993-04-07

1994-05-24

Baxter, Janet C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430596, 430598, 430940, G03C 1015

Patent

active

053147995

ABSTRACT:
There is disclosed a method for preparing a direct reversal type silver halide light-sensitive emulsion which is used for a black-and-white light-sensitive material and has the improved photographic performances of a high sensitivity and a high contrast. The method comprises:
A method for preparing a fogging type direct positive silver halide emulsion comprising the steps of:

REFERENCES:
patent: 3501307 (1970-03-01), Illingsworth
patent: 3600167 (1971-08-01), Judd et al.
patent: 3941602 (1976-03-01), Depoorter et al.
patent: 3957518 (1976-05-01), Vanassche et al.
patent: 4259439 (1981-03-01), Tanaka et al.
patent: 4311786 (1982-01-01), Steiger et al.

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