I am testing a soft ground mixture that consists of 3 parts refrigerated Graphic Chemical Water based Block Printing Ink Peacock Blue, 2 parts Golden Acrylic Silkscreen Medium, and 1/2 part Golden GAC 200. I am using newsprint as the transfer paper and a #2 pencil for drawing.
Date: February 18, 2009
Researcher’s Name: Amelia Vottero
Plate Material: .032 Copper
Plate Size: 5 in x 3 in
Room Temperature: 78° F
I degreased the plate with Bon-Ami and water made into a paste. The paste was rubbed onto the plate surface and rinsed away with water. The copper plate was blow dried and finished with a clean towel. The ground mix is refrigerated so that it does not dry out in the open air. I allowed the mix to return to room temperature before I applied it to the degreased copper plate. I rolled a thin amount of the ground across the plate’s surface just enough so that I could not see the copper sparkle through the ground. I placed the newsprint gently across the copper plate’s surface and drew for over an hour. I used a #2 hard pencil and held it as perpendicular as possible to the plate to achieve a suitable transfer. After I completed my image I placed the copper plate on the hot plate until it was dry to the touch.
The plate was etched in a vertical etching tank filled with 35° Baume Ferric Chloride.
Timed Application of Mordant
20 Minutes/Rinse/10 Minutes/Rinse/15 Minutes/Rinse
Removal of Grounds
The ground was removed using a stripper bath of Arm & Hammer Washing Soda and water (100 grams/1 liter). I rinsed the plate under warm water after soaking it in the stripper bath for 10 minutes.
After Bath Evaluation
Marks appear to be etched successfully.
The plate was inked with unmodified 50% Graphic Chemical Bone Black and 50% Graphic Chemical Stiff Black. The ink was carded on with a orange plastic scraper, wiped with used tarlatan, and hand wiped.
Paper Type: Hahnemule Copperplate
Paper Soaking Time: 15 Minutes
Press Blanket Setup: Small Takach, 2 Blankets, 8.0 pressure