Posted by Andrew (76.193.17.40) on July 04, 2011 at 12:08:35:
In Reply to: Re: Toyokuni I - bust portrait in pr posted by Guy on July 03, 2011 at 21:16:12:
"I've had good success with floating seriously fauxed prints in 25% hydrogen peroxide solution, though I've had a couple of dramatic failures as well."
Geo ...
About the fauxed / foxed prints -
Is the "25 percent hydrogen peroxide" a typo as well (over-the-counter H202 is about 2.5%)
25 percent would destroy many of the colors of this print immediately. In the early 1800's they were all-natural plant-derived colors, some of which are sensitive. Anyway, this particular print should not be immersed in any kind of solution, because some of the colors are water-soluble, also the mica might float off the surface of the paper. Don't do it...
There might be a way to locally reduce the spots in the background in the left. It would be interesting to hear the verdict of a professional conservator.