I suppose this is a pretty basic question: what should one use to bleach
the color of a 100% rag paper, prior to coating with a sensitive emulsion
and which will not interfere with the chemical process? For example, if I
wanted to lighten a gray rag paper for brighter highlights prior to making
a cyanotype? How about stable dyes as well? For example, if I to lightly
dye a white rag paper lightly rose or lavender prior to making a
cyanotype?
Thanks,
Alan Greene