THE EFFECT OF SOME PHOTOGRAPHIC ADDITIVES ON THE GEL STRENGTH OF GELATIN

doi:10.7517/j.issn.1674-0475.1989.03.65

Imaging Science and Photochemistry ›› 1989, Vol. 7 ›› Issue (3): 65-67.DOI: 10.7517/j.issn.1674-0475.1989.03.65

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THE EFFECT OF SOME PHOTOGRAPHIC ADDITIVES ON THE GEL STRENGTH OF GELATIN

XIONG LIANG-WEN, PENG BI-XIAN

Institute of Photographic Chemistry, Academia Sinica, Beijing 100012, P. R. China

Received:1987-12-23 Revised:1989-04-24 Online:1989-08-20 Published:1989-08-20

Abstract

Abstract: In present paper the effect of potassium thiocyanate, ammonium thiocyanate, thiourea and urea on gel strength of photographic gelatins was investigated. It is found that with the increase of amount of above-mentioned additives the monotonous and linear decrease of the gel strength of gelatin was observed. Gel strength is one of the key physicomechanical behaviour parameters of photographic gelatin. The discovery implies that in order to improve the physio-mechanical property of gelatin and (or) gelatin-silver halide emulsion layer it is of great importance to properly and reasonably apply above-mentioned additives in emulsion-making or explore the new type of additives without harmful influence on the gel strength of photographic gelatins.

Key words: Gel strength, potassium thiocyanate, Ammonium thiocyanate, thiourea, Gelatin

XIONG LIANG-WEN, PENG BI-XIAN. THE EFFECT OF SOME PHOTOGRAPHIC ADDITIVES ON THE GEL STRENGTH OF GELATIN[J]. Imaging Science and Photochemistry, 1989, 7(3): 65-67.

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THE EFFECT OF SOME PHOTOGRAPHIC ADDITIVES ON THE GEL STRENGTH OF GELATIN

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