Wood pulp paper is wood pulp made entirely of natural wood, no other fibers are added, and the fibers are purely woody.
Cotton pulp paper uses cotton linters as raw materials, with relatively pure cellulose, slender and elastic fibers, toughness and bending resistance, and good absorbency. The finished paper is fine and soft, has a high degree of opacity, and can be stored for a long time.
All our watercolor sketchbook are made of 100% cotton paper, Acid-free watercolor paper