Adobe Gallery Blog

This image, which Charles Loloma labeled "Medicine Man," was executed as a stone lithograph. which is a process by which an artist draws an image with a crayon on a large flat stone that has a smooth surface.  Rosin and talc are then brushed on the image to protect and prepare it for the etching process.  An acidified gum Arabic solution is then spread over the image.  It reacts with the crayon to produce a "grease reservoir" which will accept the ink in the printing process.  In the surface areas where there is no crayon, the solution leaves a water absorbent gum jacket which resists ink.  After processing, the printer washes out the crayon with a solvent and rolls printing ink over the image. 

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