amuderick
Member
- Joined
- Jan 13, 2007
- Messages
- 279
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- Large Format
I have been refining my cyanotype technique and am having a problem. I bleach the image with Sodium Carbonate and then redevelop in Gallic Acid. The image looks great until it starts to dry. Then it is obvious that the 'ink'/color is bleeding into neighboring fibers destroying contrast, sharpness, etc. I also get light spots which mottle the entire image. I don't have this problem when I tone with Tannic Acid.
I tried an acid final bath. I also tried an alkaline final bath. No dice.
I really like the color of the Gallic Acid. But, I need to solve this problem. Ideas?
I am using Arches Aquarelle Bright White paper, 140lb.
Thanks for any tips
I tried an acid final bath. I also tried an alkaline final bath. No dice.
I really like the color of the Gallic Acid. But, I need to solve this problem. Ideas?
I am using Arches Aquarelle Bright White paper, 140lb.
Thanks for any tips