Photographic developing composition containing anti-sludging age

Details Photographic developing composition containing anti-sludging age Photographic developing composition containing anti-sludging age

1997-08-26

1998-11-03

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430264, 430446, G03C 5305

Patent

active

058306269

ABSTRACT:
A processing composition includes a combination of two different mercapto-substituted anti-sludging agents. The first compound is a conventional mercapto-substituted compound, and the second compound is a mercapto thiadiazole glycerol propoxylate having the formula I: ##STR1## This processing composition can be used to provide black-and-white development of both color reversal and black-and-white photographic elements, and particularly in high contrast graphic arts films.

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patent: 5725998 (1998-03-01), Sanpei

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