Graphic Products-Block Printing Assortment Paper Pack By Black Ink Papers. These fine printmaking papers are a staple for any artist's paper collection. Made from 100% kozo (mulberry) fiber, these sheets are thin yet very strong, making it ideal for lino block printing, woodblock printing and silkscreen. Smooth on one side, lightly textured on the other. Experiment with each for optimal results. This package contains forty-five 12x9 inch block printing papers in seven different colors (five of each) and five sheets of bleached and unbleached whites. Imported.