I'm trying to find any readily available chemical/substance (i.e. household, hardware store etc.) or combination of such that breaks down paper/cellulose.
I'm a home electronics hobbyist and am using my laser printer to print circuit board layouts. I place the paper on the blank copper board and run it through a laminate machine (high temp & pressure) to 'melt' the laser toner to the copper. I then soak the board and paper in water to try and slush the paper free of the toner, after which I can put the board in acid and remove the exposed copper and leave my circuit pattern.
This actually works pretty well except that releasing the paper from the toner is maybe only 95% efficient/reliable. Sometimes the toner gets pulled off the copper and/or fibers/slag from the paper remain on the board.
From doing a little research on the internet, it would seem that dissolving/breaking down cellulose is not an easy process and is quite involved for commercial applications. However, for my purposes I don't think I need some 'perfect' solution. If I can just get the paper to soften, or partially break down or just change its properties a bit so that it will let go of the toner more efficiently, then that would probably be sufficient for my needs.