Misha, What a good idea to save fibers from the dryer! No I did not bleach the paper, you can see that the first one is yellowish, and it had been in a dark place, I assume that it woul be more yellow if I let i be "out" The grapic paper, on which you make etchings is white for decades...it's a guarantie. Well Jordy, try the mangle and tell us then how it worked :-)