Effects of Ca2+ and Ba2+ Ions on Sensitometric Properties and Stability of Photothermographic Material

doi:10.7517/j.issn.1674-0475.2005.05.367

Abstract

Abstract: The effects of Ca²⁺, Ba²⁺ ion on sensitometric properties and aging stability of PTG materials, using AgSt as silver sources, ex-situ formed AgBr as photosensitive component, and PVA as binder, were investigated. The results showed that the sensitivity and the fog of PTG materials were all decreased at different degrees when adding Ca²⁺ or Ba²⁺ to system before coating, and sensitivity was debased quickly with the increase of percentage of Ca²⁺ or Ba²⁺. In addition, the changing trend of the sensitivity and the fog of PTG materials which contained Ca²⁺ was not consistent with that of Ba²⁺ as the aging time went on.

Key words: photothermographic materials, Ca²⁺, Ba²⁺, sensitometric property, stability

CLC Number:

TQ57

LIN Hai-li, CAO Jing, YAO Lin-hui, XIA Pei-jie, LI Jin-pei. Effects of Ca²⁺ and Ba²⁺ Ions on Sensitometric Properties and Stability of Photothermographic Material[J]. Imaging Science and Photochemistry, 2005, 23(5): 367-373.

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Effects of Ca²⁺ and Ba²⁺ Ions on Sensitometric Properties and Stability of Photothermographic Material

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