Lyophilisation of Photographic Papers

článek v časopise - ostatní, Jost

angličtina

Many archive documents were inundated during the catastrophic flood in 2002 in the Bohemia, dominantly in many Prague central institutions and archives. The documents were frozen in huge packets just after the water receded and at present they are saved in freezing storages at the temperature under -30 ?C. The frozen materials usually contain various kinds of documents, dominantly on paper with written of printed information. A significant part of the material is photographic materials, both negatives and positives. The vacuum sublimation called lyophilisation is the most effective process. This work presents the first results obtained during the study of positive photographic materials lyophilisation.

Lyophilization, photgraphic fiber paper, RC paper, paper properties

KRČMA, F., BUREŠOVÁ, H.

2005

20. 9. 2005

AV ČR

Praha

0009-2770

Chemické listy

99

S

Česká republika

S549

S551

3