When making cyanotypes, I sometimes haven't had the time to develop/wash my prints immediately after exposure.
I then of course keep the exposed print in darkness until I can wash it - so far I've tried waiting a day or two between exposure and washing.
But I wonder, is this a problem? Should I just wash the print right away?
And if it's not a problem, does anybody have a guess as to how long an exposed print can wait before washing?
I haven't experienced any problems so far, however I have noticed that the exposed areas of my unwashed prints turn darker and more blue the longer I wait to develop them, which worries me a bit. After washing though, I don't seem to see any difference when comparing to prints I've washed immediately...
Thanks,
/Ane