Color image forming dye bleach process
AssigneeFuji Photo Film Co., Ltd.
InventorsKoichi Nakamura, Isao Shimamura, Yukio Maekawa, Koichi Koyama, Shigeki Yokoyama
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AssigneeFuji Photo Film Co., Ltd.
InventorsKoichi Nakamura, Isao Shimamura, Yukio Maekawa, Koichi Koyama, Shigeki Yokoyama
Estimating the term…
A color image forming process which comprises processing a photographic light-sensitive element comprising a support having thereon a layer containing imagewise distributed silver therein with an aqueous alkaline solution containing a stannous ion and in the presence of a dye and a bispyridinium compound represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a lower aliphatic hydrocarbon group or R.sub.1 and R.sub.2 are bonded each other to form a ring; n represents 0 or 1; and X.sup.- represents an anion; to bleach the dye in an imagewise manner. By the process of the present invention, color images which are stable to light, heat and moisture are formed using light-sensitive elements containing a reduced amount of silver salt and without using chemicals causing environmental pollution problems for the processing.
A process for forming color images which comprises processing a photographic light-sensitive element containing imagewise distributed silver therein with an aqueous alkaline solution having a pH of about 10 or more containing a stannous ion and in the presence of a dye and a bispyridinium compound represented by the following general formula (I):
A process of forming color positive images which comprises developing an imagewise exposed photographic element comprising a support having thereon at least one layer containing a silver halide emulsion and a dye to form an image pattern of developed silver, fixing the photographic element with a fixing solution containing a bispyridinium compound represented by the following general formula (I):
Dependencies are inferred from the claim text.