Claims
- 1. In a process for forming a color image of an image on a photographic X-ray element having coated on opposite surfaces of a support monochromatically photosensitive silver halide emulsion layers including the steps of subjecting the X-ray image-wise exposed element to color development in the presence of a color coupler with a developer solution containing a p-phenylene diamine developing agent whereby said color coupler couples with the oxidation product of said developing agent to form a color image in said element and fixing said color image in said element, the improvement comprising omitting desilverization from said color development and said developer solution additionally containing 1-phenyl-3-pyrazolidone.
- 2. The process as claimed in claim 1, wherein said color coupler is present in said silver halide emulsion.
- 3. The process as claimed in claim 1, wherein said color coupler is present in said developer solution.
- 4. The process as claimed in claim 1, wherein said developer solution additionally contains 6-nitrobenzimidazole nitrate.
- 5. The process as claimed in claim 1, wherein said developer solution additionally contains a poly(oxyethylene)glycol or a cationic, nonionic or anionic derivative thereof, said poly-(oxyethylene)glycol being soluble in water or swelled by water.
- 6. The process as claimed in claim 5, wherein said developer solution additionally contains 6-nitrobenzimidazole nitrate.
- 7. The process as claimed in claim 5, wherein said poly-(oxyethylene)glycol or derivative thereof has a molecular weight ranging from about 400 to 4000.
- 8. The process as claimed in claim 7, wherein said poly(oxyethylene)glycol or derivative thereof is a poly(oxyethylene)glycol methylphenyl ether, a poly(oxyethylene) alkyl ether, a poly(oxyethylene) nonylphenyl ether, a poly(oxyethylene) sorbitan ester, a poly(oxyethylene)-(oxypropylene) block copolymer, a poly(oxyethylene) alkyl ester, a poly(oxyethylene)-bis(pyridinium methane sulfonate) or a polyethoxy-ethyl-bis-sulfuric acid.
- 9. The process as claimed in claim 7, wherein said poly(oxyethylene)glycol or derivative thereof is poly(oxyethylene) glycol.
- 10. The process as claimed in claim 6, wherein said 1-phenyl-3-pyrazolidone, said poly(oxyethylene)glycol or derivative thereof, and said 6-nitrobenzimidazole nitrate are present at a level of from about 0.05 to 0.5 g, about 0.5 to 5 g and about 5 to 150 mg, respectively, per liter of developer solution.
Priority Claims (1)
Number |
Date |
Country |
Kind |
46-20190 |
Apr 1971 |
JA |
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CROSS-REFERENCE TO RELATED APPLICATION
This application claims the benefit under 35 USC 120 of copending application Ser. No. 240,484, filed Apr. 3, 1972, now abandoned, of which this application is a continuation-in-part.
US Referenced Citations (7)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
240484 |
Apr 1972 |
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