The drawing on newsprint after 3 hours
Newsprint paper on top of a copper plate
coated with wet BIG grounds,
after the first 20 minute session with the model
Note the "bridge" -- made of a wooden ruler and poster putty at both ends -- this is positioned so that my hand does not touch the newsprint, which would pull the BIG grounds off the copper plate,
and ruin my drawing on the copper plate.
The "bridge"
under the drawing
After 3 hours, when I pulled the newsprint paper off the copper plate, the reverse side of the newsprint looked too dark. I believe that the soft BIG grounds was too wet, and therefore too easily transferred to the newsprint. I probably should let the wet BIG grounds dry for a day, in a dark place.
The drawing barely seen
on the reverse side of the newsprint paper,
which was touching the BIG grounds
Unfortunately I forgot to take a picture of the copper plate before etching. However, coated plate looked even worse than the newsprint paper above.
I decided to etch the plate the next day (Nov 30th), while the BIG ground was still wet. After 30 minutes in ferric chloride, most of the BIG ground came off. Good thing we etched the plate in a small flat tray, instead of submersing it in the larger ferric chloride vertical tanks at Remarque Print Workshop.
The wet soft BIG ground
came off in the ferric chloride bath
after 30 minutes
Washed plate after 30 minutes
in ferric chloride
The BIG ground that remained on the copper plate
after etching and washing
was still wet, and smeared easily
The plate turned yellow
after spraying a solution of soda ash on it
The cleaned plate
seemed to have etched,
but did not look like the drawing I did the night before
MORALE of the story: Harden the soft BIG grounds before etching in ferric chloride.
I could have cooked and hardened the wet BIG grounds with a hot plate, like I did with this plate I drew on earlier, but etched a hour after this plate.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.