| 摘要 |
A process is disclosed of forming a reversal dye image. This is accomplished by developing an imagewise exposed photographic element with a black-and-white developer and poisoning the developed silver as a redox amplification catalyst for a peroxide oxidizing agent. The undeveloped silver is then rendered developable to form a silver catalyst image pattern. This latter silver image pattern is then used to catalyze the redox reaction of a peroxide oxidizing agent and a dye-image-generating reducing agent, such as a color-developing agent, or a redox dye-releaser.
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