Abstract
AbstractA new type of thermally processed chemipholographic imaging element is described In which images are formed by electrical exposures of an electrothermographic Co-C-Fax CET composition comprising a Co(III)-diamine complex, a colour developer, and a colour coupler. Negative cyan, magenta, and yellow images are formed using p-aminophenols and sulphonylhydrazones as developers in combination with conventional Couplers. A cathodic mechanism of latent image formation involving reduction of the Co(III)-diamine complex has been proposed, and colour discrimination based on polarity effects associated with this mechanism has been demonstrated.
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