Photographic developers containing a developing agent of the asc

Details Photographic developers containing a developing agent of the asc Photographic developers containing a developing agent of the asc

1997-09-25

1998-11-17

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430440, 430446, 430483, 430487, G03C 530

Patent

active

058374345

ABSTRACT:
The invention concerns a developer solution for processing silver halide photographic products. This developer solution contains an ascorbic acid developing agent, a auxiliary developing agent which is a substituted phenidone and a development accelerator which is a thioether having an ammonium group, a triazolium thiolate or a substituted thioalkane.

REFERENCES:
patent: 4266002 (1981-05-01), McCreary et al.
patent: 5474879 (1995-12-01), Fitterman et al.

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