Preservation

Comparison of Drying Methods

Rolled items present special challenges because  little space may be available to unroll long items for drying. We were curious to see how well rolled items could dry in their existing format. Depending on the length and thickness of paper, most rolled items in our study successfully dried within their rolled formats.

Slide 40
Comparison of Drying Methods
Kaplan/Ludwig 2003

We do not know if the creases and physical damage seen in the patented vacuum freeze-dry process dried items resulted from the process itself, or from the thawing and shipment of the items.  Though the equipment used to compress materials into shape by the patented process may be ultimately inappropriate for unique archival holdings of disparate sizes or formats, we believe that the process holds great promise for published uniformly bound structures in circulating collections. 

Slide 41
Comparison of Drying Methods
Kaplan/Ludwig 2003

Preservation >

The U.S. National Archives and Records Administration
1-86-NARA-NARA or 1-866-272-6272