# In Situ Studies of Tidelines on Paper

Rachel Obbard discusses Tidelines, or staining produced by wetting, mar the appearance of and weaken paper, which predisposes the paper to further damage. This talk highlighted findings from research that utilizes existing technologies to improve our understanding of tidelines on historical documents, books, and artworks on paper. This collaboration of Dartmouth College, the Library of Congress and the Metropolitan Museum of Art is part of an effort to identify non-invasive techniques to study tidelines that will inform treatment methodologies for artifacts damaged by water ingress. Research funded by the National Center for Preservation Technology and Training (NCPTT).

- Kind: Talk
- Year: 2017
- By: Library Of Congress
- Genres: Science, History
- Archive: [Library of Congress](https://www.loc.gov/item/2021690702/)
- Licence or status: Rights statement at the Library of Congress (as the archive states it)
- Credit: Library of Congress
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/loc/2021690702?play=1)