Alternative to Solvents in Monotype: Oil-Based Ink Test 2

October 27, 2015
Researchers: Kristina Key
Room Temperature: 68 degrees F
Humidity: low /dry
Materials: 6″x9″ PETG plate, Graphic Chemical 514 Bone Black oil-based ink, vinegar, baking soda
Abstract: Finding a replacement for solvents used in monotype to create fluid textures, reticulated tones, and marks. This test is testing the reaction Baking Soda and Vinegar have on the ink and if it will react in a similar way to a solvent, like mineral spirits. We decided to try Baking Soda and Vinegar because of the visible reaction the two create on their own. We tested this by modifying the ink with the Baking Soda and then applying the vinegar to the inked plate.

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Plate 1
Modified Ink:
Mixed about a 1:1 ratio of baking soda and ink together.

Procedure:
I began by cleaning the plate with soapy water and drying it. I mixed the ink and baking soda using a palette knife and then rolled it out with a brayer. The ink rolled on very easily with the baking soda in it.

Mixing the ink and rolling out

Mixing the ink and rolling out

The plate was then sprayed with vinegar and let sit for about ten minutes. Then I blow dried the remaining moisture off the plate before printing.

 

Printing Info:
Paper: Arnham
Soaking time: 20 minutes
Press: 2 sizing catchers, Takach etching press at 7.5 pressure

Plate 1 printed

Plate 1 printed

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PLATE 2
Modified Ink:

About a 2:1 ratio of baking soda to ink.

Procedure:
I did another test using more baking soda in the ink because I did not see any reaction on the plate or in the print. I was hoping more baking soda would create the visible reaction we were looking for. When it didn’t, I sprinkled some of the Baking Soda onto a puddle of vinegar and that fizzed but did not interact strongly with the ink.

Plate 2, when baking soda was added directly into vinegar on plate

Plate 2, when baking soda was added directly into vinegar on plate

Plate 2, dried before printing

Plate 2, dried before printing

Printing Info:
Paper: Arnham
Soaking time: 20 minutes
Press: 2 sizing catchers, Takach etching press at 7.5 pressure

Plate 2 printed

Plate 2 printed

Residue left on plate after printed

Residue left on plate after printed

Conclusion:
Both plates had very little reaction before and after printing. The area where I added baking soda directly into vinegar on the plate appears to have slightly eaten through the ink.

Alternative to Solvents in Monotype: Test 3 Oil-Based Ink >