Effects of Grain Size and Content of AgBr on Sensitivity of PTG Materials Using PVA as a Hydrophilic Binder

doi:10.7517/j.issn.1674-0475.2005.01.6

Abstract

Abstract: The effects of different sizes and contents of the cubic AgBr grains on the sensitivity of PTG materials were studied, in which hydrophilic polyvinyl alcohol (PVA) was used as a binder and the cubic AgBr emulsions were obtained from an ex-situ preparation. The results showed that the sensitivity of PTG reached a maximum when AgBr grain sizes were about 100—200 nm or in the ratio of 4 to 10 AgBr mol/AgSt mol. In addition, it was shown that a little gelatin introduced from the AgBr emulsion would not bring about any significant effect on the sensitivity of PTG system.

Key words: photothermographic materials, light-sensitivity, silver halide, thermochemistry

CLC Number:

TQ57

CAO Jing, LIN Hai-li, YAO Lin-hui, ZHI Xin, LI Jin-pei, XIA Pei-jie. Effects of Grain Size and Content of AgBr on Sensitivity of PTG Materials Using PVA as a Hydrophilic Binder[J]. Imaging Science and Photochemistry, 2005, 23(1): 6-13.

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Effects of Grain Size and Content of AgBr on Sensitivity of PTG Materials Using PVA as a Hydrophilic Binder

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