THE PROPERTIES OF SOME COLOR-SHIFTED DYES FOR SILVER-DYE-BLEACH PHOTOGRAPHY

doi:10.7517/j.issn.1674-0475.1992.03.259

Imaging Science and Photochemistry ›› 1992, Vol. 10 ›› Issue (3): 259-265.DOI: 10.7517/j.issn.1674-0475.1992.03.259

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THE PROPERTIES OF SOME COLOR-SHIFTED DYES FOR SILVER-DYE-BLEACH PHOTOGRAPHY

PENG XIAO-JUN, YANG JIN-ZONG, YAO ZHENG-YANG

Department of Fine Chemicals, Dalian University of Technology, Dalian 116012, P. R. China

Received:1991-09-02 Revised:1991-12-02 Online:1992-08-20 Published:1992-08-20

Abstract

Abstract: Color shifting and returning of diazo dyes used in silver dye bleach (SDB) photography were studied, focusing on the relationship between the properties and their molecular structure. The results showed that the dyes with coupling moieties of N-benzoyl J-acid, G-acid or chro-motropic acid could shift and return easily by benzoylation and debenzoylation, but those with coupling moieties of R-acid or N-acyl H-acid were difficult. Using the shifted dyes M-16 and C-20 in SDB photography, the sensitivity increased 3.8 and 6.3 times, respectively.

Key words: silver dye bleach photography, photosensitivity, color shifted dye

PENG XIAO-JUN, YANG JIN-ZONG, YAO ZHENG-YANG. THE PROPERTIES OF SOME COLOR-SHIFTED DYES FOR SILVER-DYE-BLEACH PHOTOGRAPHY[J]. Imaging Science and Photochemistry, 1992, 10(3): 259-265.

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THE PROPERTIES OF SOME COLOR-SHIFTED DYES FOR SILVER-DYE-BLEACH PHOTOGRAPHY

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