I mixed a small amount of the Edinburgh lift and decided not to dry the ground on the hot plate. I allowed the copper plate to dry in the open air so the lift does not become baked onto the plate.
Date: October 7, 2009
Researcher’s Name: Elena Betke Brunswick
Plate Material: .032 Copper
Plate Size: 5in x 7in
Room Temperature: 66° Overcast
I degreased with soy sauce that was rubbed onto the copper plate using a piece of rolled felt, rinsed and then dried with a clean rag and blow dryer. The degreasing was done two times. I mixed half the normal amount of Edinburgh Lift (1 teaspoon masking fluid, 2 eraser tips gouache, and one quarter teaspoon water.) I painted the lift ground unto the copper plate for 30 minutes using a variety of different diameter brushes and allowed the plate to air dry for 40 minutes. I poured the Z-Acryl hard-ground emulsion across the copper plate and caught it in a water tray. I stood the plate up vertically and allowed it to dry in the open air for 5 minutes. I placed the copper plate in the hotbox for 30 minutes to harden the Z-Acryl. After the hardening I placed the copper plate in a bath of warm water. The ground came off quickly and easily by rubbing it with gloved hands. I applied an aquatint in five passes to the plate with a Paashce airbrush set at it’s finest setting. The aquatint was air dried for 5 minutes and placed in the hotbox for 20 minutes.
Application of Edinburgh mixture
Each plate was etched in a vertical etching tank of Ferric Chloride at 38° Baume.
Timed Application of Mordant
Removal of Grounds
The ground was removed using a stripper bath of Arm & Hammer Washing Soda and water (100 grams/1 liter). The ground came off easily after 10 minutes in the stripper.
After Bath Evaluation
The plate is evenly etched.
The plates were inked with unmodified Graphic Chemical & Ink Co. Bone Black Etching Ink #514. The ink was carded on with mat board scraps and wiped with used tarlatan.
Paper Type: Pescia
Paper Soaking Time: 25 Minutes
Press Blanket Setup: Baby Takach, 2 Blankets, 8.5 Pressure
The print looks great and the Edinburgh lift came off easily.