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  • Hart of the Wudpraxeology
    Apr 9, 2026, 7:16 PM

    @zeitkunst Interesting question. I think historically they used raw linseed oil not the boiled kind (which usually has added modern chemical siccatives). But I guess I assumed that even in an era when textiles were more expensive, rags would not be so valuable that they would need to be reused. Perhaps the dried, stiff oil rags were used to make paper or some other recycled product. I know that was a major use for rags up to the end of the 19th century in many regions.

    I'm curious what you find out!

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Replies

  • Adriana Knoufzeitkunst
    Apr 10, 2026, 12:55 PM

    @praxeology interesting thoughts. I've seen some people make BLO without additives by heating it up to just below the flash point. Not sure if they did that in the past?

    Also, I imagine oil soaked rags would need a lot of processing before being made into paper...I think the oil would mess up with the hydrogen bonding needed for paper making, but maybe they just used a lot of harsh chemicals to clean the fibers before processing for papermaking? Those factories were quite toxic....

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  • Hart of the Wudpraxeology
    Apr 10, 2026, 3:14 PM

    @zeitkunst I think rag paper was usually scoured with soda ash or some kind of classical detergent to remove other stains and oils before being pulped. Surely some bad stuff in there but I think the really terrible stuff came with industrial wood pulp paper. But I'm honestly pretty ignorant about the details, especially the chemistry.

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