Blanket wash is a solvent used to clean the blankets in a printing press. Press operators also use it to clean out the ink fountain and the ink roller train when they shut down for the day or do a color change. Blanket washes come in a bit of a variety in strength and toxicity. You can order them in single gallon or give gallon pails.
There are a variety of formulas and types of blanket wash solvents. The main property of solvent is the strength but some washes are water miscible or compliant with specific regulations. Read more about each product and find the best solvent for your application.