I will follow the previously discovered steps in applying an aquatint to create an spitbite. I will make sure the plate is entirely degreased. The aquatint will be applied in 15 passes. Careful considerations will be made to make sure I do not overspray the ground.
Date: June 23, 2010
Researcher’s Name: Olya Alekseeva
Plate Material: .032 Copper
Plate Size: 4 in x 6 in
Room Temperature: 82°
The plate was 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. A basic airbrush sprayed aquatint was applied to each test plate in 15 rounds (see Basic Ground Applications). The airbrush was opened only a small amount to allow for the finest spray possible, and the plate was sprayed from a distance of 16-18 inches away.
Applied Ferric Chloride from the studio’s premixed bottle.
Timed Application of Mordant
See diagram for application times.
Removal of Grounds
The ground was effectively removed using a stripper bath of Arm & Hammer Washing Soda and water (100 grams/1 liter). The plate was rinsed in water and de-oxidized in a brightener bath made of distilled white vinegar and salt (1 gallon/1 cup). Immediately following the brightener bath the plate was dried with a clean rag and blow dryer.
After Bath Evaluation
The plate looks properly etched.
The ink used was a mixture of 50% Graphic Chemical Bone Black and 50% Charbonnel RSR, plus ½ teaspoon of #3 plate oil (to about 2 tablespoons ink). Ink was carded onto the copper plate with mat board scraps, wiped with used tarlatan, and then palm wiped.
Paper Type: Hahnemule Copperplate
Paper Soaking Time: 30 Minutes
Press Blanket Setup: Sizing catcher and pusher, 11.5 pressure, Small Takach Press
By keeping close attention to the amount of aquatint I sprayed the print was a success.