Investigating Liquid CO2 to Clean Textiles and Basketry
AbstractThis presentation illustrates the use of micron-sized snow particles to transfer and displace particles of surface soiling on delicate textile and basketry surfaces. Liquid CO2 from a tank (with syphon) connected to a valve and a nozzle expands without exchanging heat, thus becoming a mixture of gaseous CO2 and dry ice that surrounds the soil particles with a gas envelope which slides over the object surface, and then the CO2 volatilizes into the air. This momentum transfer and displacement system is dry, non-conductive, nonabrasive, and non-toxic. Our process of testing this technique is described.
Click on Video link on the right to view presentation.
How to Cite
ODEGAARD, Nancy. Investigating Liquid CO2 to Clean Textiles and Basketry. Selected Proceedings of Advances in Conservation, [S.l.], nov. 2017. Available at: <http://epubs.sandbox.lib.utah.edu/index.php/waac/article/view/4018>. Date accessed: 29 feb. 2020.