Korean paper or hanji (Korean: 한지/韓紙) is the name of traditional handmade paper from Korea. Hanji is made from the inner bark of Broussonetia papyrifera known colloquially as paper mulberry, a tree native to Korea that grows well on its rocky mountainsides, known in Korean as dak. The formation aid crucial to making hanji is the mucilage that oozes from the roots of Hibiscus manihot. This substance helps suspend the individual fibers in water.
Traditional hanji is made in laminated sheets using the we bal method (a sheet formation technique), which allows for multi-directional grain The process of creating hanji also employs dochim, a method of pounding finished sheets to compact fibers and lessen ink bleed.
Hanji paper is famous across Asia for its white color and extreme durability, and was a high import to China in tribute missions.