NedL
Subscriber
The tannins come out of a leaf in different ways... sometimes it leaches through the surface, which makes something like a dye, more diffuse. Sometimes it comes from inside the cells directly, which makes a dark ink, more defined. This one was a big dried sycamore leaf, and it's mostly leaching, but the leaf had a crack in it on the lower right where the inside was exposed and it made black ink there. Done in the microwave oven.
~9x10 inches, strathmore 200 CP watercolor paper:
I made this one with no heat or water. I painted acetone on the leaf, put the folded paper between two pieces of cellophane to keep it from evaporating, and then put it under a stack of books for about 5 minutes. Then I painted AFC onto it and immediately washed the extra AFC off. It was fun to see the image darken when painting on the AFC. So it was quick and got tannins out of the leaf without steam, but you can see it is diffuse...the tannin leached out more in certain places....
~5x11 inch canson marker paper:
This is postcard sized, done in microwave, zapped it multiple time then left to sit overnight...
~4.5x7 inches, strathmore 400 printmaking paper:
~9x10 inches, strathmore 200 CP watercolor paper:
I made this one with no heat or water. I painted acetone on the leaf, put the folded paper between two pieces of cellophane to keep it from evaporating, and then put it under a stack of books for about 5 minutes. Then I painted AFC onto it and immediately washed the extra AFC off. It was fun to see the image darken when painting on the AFC. So it was quick and got tannins out of the leaf without steam, but you can see it is diffuse...the tannin leached out more in certain places....
~5x11 inch canson marker paper:
This is postcard sized, done in microwave, zapped it multiple time then left to sit overnight...
~4.5x7 inches, strathmore 400 printmaking paper: