Whatman paper – white fine paper without a pronounced texture, dense, with a surface sizing. It is distinguished by high resistance to abrasion. It belongs to a type of drawing paper (used to draw with the Italian pencil or watercolor).
It was first made in the mid 1750's by England manufacturer James Whatman senior (born James Whatman), who introduced a new paper form, allowing you to receive sheets without traces of net. Whatman named his invention wove paper (that is, vellum, or literally, "tissue paper"). In Russian, the name stuck in honor of the inventor (to call sheets A1 as whatman us incorrectly, whatman paper is a technology of production, and not the size of the page).