Experimental study on vacuum deacidification and vacuum freeze-drying for acid-processed paper relics
Acid paper relics were selected as the research subject . Develop a device which could be used for removing acid in the paper relics under vacuum , pre-freezing at low temperature and drying under vacuum . And use the device to make experiment on vacuum freeze-drying for acid-processed paper relics . The process and related data were considered . Analyze the datas before and after the test . The results indicate that the speed and validity have been improved as removing acid in the paper relics under vacuum than traditional methods . Paper relics do not appear shrinkage , adhesion and deformation after vacuum freeze-drying , and the ink handwriting are intact . Research results show that this method conforms to the large scale paper relicing acid removing and its drying requirements .
vacuum deacidificationvacuum freeze-dryingpaper relicstechnical study
NETL
NSTL
万方数据
维普
