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Related Experiment Video

Updated: Feb 12, 2026

Enhanced Oil Recovery using a Combination of Biosurfactants
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Oil on Paper: A Collaborative Conservation Challenge.

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Summary

Oil-based leather dressings, once common in libraries, damaged collections. A new protocol effectively removes oil from library materials using alkaline washing and solvent applications, preserving valuable artifacts.

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Area of Science:

  • Library Science
  • Conservation Science
  • Material Science

Background:

  • Historically, oil-based leather dressings like neatsfoot oil and lanolin were used on library bindings.
  • These dressings saturated leather, migrating into pastedowns, end sheets, gutters, and text blocks, causing long-term damage.
  • The National Library of Medicine (NLM) documented extensive oil application on its leather-bound volumes.

Purpose of the Study:

  • To develop an effective treatment protocol for removing oil saturation from library collection materials.
  • To investigate and devise a method for oil removal from historical documents.
  • To explore the benefits of interdisciplinary collaboration in conservation efforts.

Main Methods:

  • A collaborative approach involving library, paintings, objects, and art-on-paper conservators was employed.
  • The developed protocol includes washing with an alkaline solution.
  • Alternating applications of petroleum ether and acetone, using suction or immersion, solubilize and remove oil components.

Main Results:

  • The protocol effectively removes oil from saturated paper and binding materials.
  • Subsequent washing with alkaline water addresses any remaining water-soluble discoloration.
  • The method proved successful in treating oil-damaged collections at the National Institutes of Health (NIH).

Conclusions:

  • Cross-disciplinary collaboration is crucial for developing innovative conservation solutions.
  • The devised treatment protocol offers an effective method for oil removal from library materials.
  • This approach helps mitigate the long-term consequences of historical conservation practices.