PROCESS OF CHEMICAL-PHOTOGRAPHIC PROCESSING OF COLOR CONVERTIBLE HALOGEN-CARRYING PHOTOGRAPHIC MATERIALS Russian patent published in 1998 - IPC

FIELD: photographic chemistry, formation of positive color images. SUBSTANCE: process includes black-and-white development of material in solution containing 1•10^-6-1•10^-2 g-mole/l composition of formulas I or II, where R¹,R²= H,OH, C₁-C₅-alkyl, n=1-5, conversion, color development in solution containing 1•10^-6-1•10^-2g-mole/l composition of formula I or II, rinsing, removal of silver and silver halogenide from developed material by its processing in bleaching-fixing solution containing 1•10^-4-1•10^-2g-mole/l composition of formula III, where R³,R⁴-H, C₁-C₅ alkyl, M-H, alkali metal, NH₄, rinsing and stabilization of formed image in compliance with formulas I H₂O₃P-[C(R¹)(R²)]_n-PO₃H₂,, , . Presence of compositions of formulas I or II in black-and-white and color developing solutions in combination with composition of formula III in bleaching-fixing solution makes it possible to improve quality of images thanks to achievement of uniform low density of fog diminished 1.8-2.0 times as compared with prototype with keeping or raising sensitivity level thanks to prevention of formation of spots of silver complexes, to simplify processing technology, to expand assortment of processes of chemical- photographic processing of color convertible photographic materials and processing solutions. EFFECT: improved quality of images. 5 tbl