Re: Clearing cyanotypes, minimizing bleeding into highlights
What light source are you using? If UV, your light exposures seem short.
You could test a print out with quadruple the exposure and see if it bleeds
into highlights--if not, then it may be exposure that is the issue.
Disregard if you are not using UV but some higher powered device.
I quit using acid in the water--it made my highlights blue (and remember,
Sam, it mordanted cyanotype to my bathtub?)
----- Original Message ----- From: "Liam Lawless" <firstname.lastname@example.org>
Sent: Friday, January 04, 2008 9:38 PM
Subject: RE: Clearing cyanotypes, minimizing bleeding into highlights
Brian, If you still get trouble after following Sam's advice, I suggest that a Hake may be coating the paper too heavily, putting down more sensitiser than the paper can hold. If that sounds likely, try coating with your paper on a slightly inclined surface (or incline the paper after coating on a flat surface) so that excess sensitiser runs down to the bottom of the coated area. Pick up the excess with the tip of a dry brush (preferably before it runs into the margins!) You can also use blotting paper. Liam