First attempt with the full image using the scanned and imported aquatint screen as the filter. We decided to try one plate with no adjustments to the settings besides using the Aquatint screen as a filter. We attempted this because of the promising image magnified under a loop. Adjustments to the other image made in color balancing due to the results of our previous test.
Date: May 28, 2013
Researcher’s Name: Liz Bannish and Stephanie Gaumond
Plate Material: .032 Copper
Plate Size: 4 x 5.25″
Room Temperature: 68 Degrees F slightly humid
The plates were beveled, backed, and in an attempt to capture the whitest whites we mirror finished the plates before degreasing with putz pomade and felt. We hope to see a lightening the plate tone that appears. Soy sauce used to degrease.
Plate A: Using the Aquatint Screen filter we scanned over it, we printed the image on a white sheet of paper and viewed the image with a loop without any changes made by us. We decided to try one at “factory settings” because of the promising image magnified. In Photoshop: Image resized to 300 dpi.
Inserted aquatint screen filter in a new adjustment layer. Kept the scaling at 104 and relief at 23 with no alteration. In channel mixer checked monochrome. left all setting at 100%, then inverted the image. The curves were kept at White: 255 and Black: 0 (unchanged) the color balance was kept at 0 for all.
Plate B: Resized the image to 300 dpi.
Inserted aquatint screen filter in a new adjustment layer. Kept the scaling=104 relief= 23.
In Channel Mixer: Highlights: Cyan -31, Magenta 0, Yellow -26 Shadows: Cyan 0, Magenta 0, Yellow +22
Then the Monochrome box was checked and we inverted the image.
We kept the same curves as our last trial – White: 240 Black: 40 Output.
Printer settings: Photoshop chooses colors, Rendering Intent: Perceptual and “Press-n-Peel settings (Plain paper & 600 resolution)
41 degrees Baume
Timed Application of Mordant
Removal of Grounds
Removed with Soy Solv industrial cleaner. A bit of soaking and rubbing required. Effectively removed all ground.
After Bath Evaluation
Image etched well.
Graphic Chemical Etching Ink in Bone Black
Paper Type: Hahnemuhle Copperplate
Paper Soaking Time: 10 Minutes
Press Blanket Setup: Press: Praga Pressure: 2 Blankets: 2 sizing catchers
Both prints are very course and spotty. The film gives the appearance of a wide tonal range however the prints themselves are fairly muddy still. Greater efforts to get whiter whites must be taken. The biggest issue is thought to be that the aquatint screen we imported to use as the filter was not scanned at a high enough resolution to get a quality image. The screen needed to be scanned at 720 ppi. Small transfer issues. We will use the tacking iron to adhere the image and first and the large iron after to heat the whole surface.