Hmm.
Interesting cleaning problem.
An artist's kneaded eraser? A 'Mr. Clean Magic Eraser' perhaps?
I'd research paper-cleaning techniques to try to come up with the solution.
http://www.carrmclean.ca/CategoryGroupBrowser.aspx?CategoryID=233&GroupN...
Soap Flakes
The Moller seats are the same type of papercord as Wegner seats. Use soap flakes in water, wipe it on, let it dry. Repeat every couple of weeks.
I was able to clean up a Wegner rocking chair seat this way. I also lifted most of a coffee stain out of another paper-cord seat.
Recipe on soap-flakes.com below.
http://www.soap-flakes.com/recipes.html
Yes, I've cleaned paper
thousands of times, usually by means of an eraser; kneaded-artists erasers being the most effective.
I've removed gooey sticker residue from paper (books) using lighter fluid.
Perhaps some sort of dry-cleaning solvent would work for paper cord?
These are just guesses, of course; try them at your own risk.
This cleaning-problem captured my imagination because I had a set of these paper-corded chairs with a stray food stain or two. I always meant to tackle those stains, but sold them before I had the chance.
like the soap flake hint.
You could also drop an e-mail to Richard, the WickerGuru...
He is very generous with his knowledge.
His restoration videos here, http://www.youtube.com/wickerguru
And a direct link to the website here,
http://wickerworks.weebly.com/cane-raw-materials.html
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