slackercruster
Getting Fingers Dirty
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Does the photo contain acid?
It is from 1940.
What caused this with a tipped in photo in a book
- Thread starter slackercruster
- Start date
Does the photo contain acid?
It is from 1940.
- Joined
- Dec 27, 2014
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No, that's not acid, some ingredient of the offset ink did not dry off quick enough or was not colorless as it migrated slowly into the next page. Such inks were and are oil based
https://www.prepressure.com/printing/processes/offset-ink
https://www.dod.uni-wuppertal.de/fileadmin/_migrated/content_uploads/Offset_Printing_Inks.pdf
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