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Home > Slideshow >

Book Restoration: Moisture Content

Recovered Books: Checking Moisture Content in Paper

At each critical stage of the recovery process, we carefully test for any excess moisture content. In cases of particularly thick or heavy books, additional drying may be required to insure that all destructive moisture is removed.

Introduction
Flood Aftermath
Fire Damage
Wet Books
Document Reprocessors
Experience & Credentials
Document Recovery Plan
First Contact
Arrival on Site
Pre-Packout Inspection
Begin Packout
Orderly Packout
Ready to Ship
Organization
Moving and Rollout
Shrink Wrapping
Loading for Transport
Arrival and Unloading
Refrigeration
In Cold Storage
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Recovery Phase
Thermaline
Drying Process
Vacuum Drying
Cleaning
Book Restoration
Moisture Tests
Document Integrity
Cataloging
Copying
Packing for Shipment
Shipping Labels
Ready to Ship
Relocation
Back on Site
Replacement
Restored Books
Job Completed
Disaster Plan
Conclusion
Testing for moisture content in books after freeze drying
Testing for moisture content in books after freeze drying
Watch the full Document Reprocessors Video
Watch the Video

Removing Moisture from Vacuum Freeze Dried Books

Moisture content after freeze-drying is a critical aspect of wet book recovery and restoration. For example, early work done by Document Reprocessors at the Los Angeles Public Library disaster involving vellum-bound volumes and a modified vacuum freeze-drying chamber demonstrated considerable success in drying the items. However, the distortion issue with leather and vellum was not totally resolved at that time. Our new cryogenic drying process, dubbed "Cryo-Drying," employs a large temperature differential between a collector plate and the book in order to considerably slow down the rate of water loss from the text block and the binding material. Thus, careful monitoring of moisture content is crucial to a successful recovery.

Quality Control Insures Successful Restoration

There are many other procedures we follow and we are constantly updating and improving our techniques. We invite you to contact Document Reprocessors if you'd like to find out more about our book cleaning and restoration methods.

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