see my comic book products are www.immaculatecomics.com
An introduction to foxing in comic books and a demostration of the simplest fungus removal. (Absorene after a steaming and heat press). I always try to remove it by alternating freezing and heat pressing the book first then I apply a solution to it. I use several. One is 5% EDTA and 5% CaOH2 in water using a makeup pad to wipe on the book.
In this particular case freezing once then heat pressing once was enough to release the black stuff. Always try that first.
Warning: wet-cleaning books is risky. You WILL ruin the first few books your try with this method. It’s virtually guaranteed to make the book into trash the first time so be careful and practice on cheap books first. You must kill the critters first and then they are much easier to remove.
Another (more aggressive) method is to apply hydrogen peroxide to the book then add some bleach. usually with a q-tip or a transfer pipette. this will bubble up and release oxygen gas, removing the dark particles via the following reaction mechanism:
H2O2 + NaClO — NaCl + H2O + O2 (gas)
note that bleach is often 5.25% or 0.709 molar and peroxide is 3.0% or 0.88 molar.
This means to get them to cancel out exactly with no residue you need to add 1.25 times as much bleach by volume as you used peroxide. If theres any excess of anything you want an excess of peroxide because it will just dissociate into water and oxygen gas over time.
Also dont use old peroxide. Its never 3.0% over time.
I use the scott wall-safe tape to mask off areas that I do not want to treat.
I normally don’t like absorene but the erasers and rubber sponges aren’t as good at removing particles from between the fibers. repeated treatments will remove more of the fungus and other stuff.