Bleaching of Recycled Pulp
Hydrogen peroxide and sodium dithionite are used to increase the brightess of deinked pulp. The bleaching methods are similar for mechanical pulp in which the goal is to make the fibers brighter.
Read more about this topic: Bleaching Of Wood Pulp
Famous quotes containing the words bleaching and/or pulp:
“Worn down by the hoofs of millions of half-wild Texas cattle driven along it to the railheads in Kansas, the trail was a bare, brown, dusty strip hundreds of miles long, lined with the bleaching bones of longhorns and cow ponies. Here and there a broken-down chuck wagon or a small mound marking the grave of some cowhand buried by his partners “on the lone prairie” gave evidence to the hardships of the journey.”
—For the State of Kansas, U.S. public relief program (1935-1943)
“He wrote me sad Mother’s Day stories. He’d always kill me in the stories and tell me how bad he felt about it. It was enough to bring a tear to a mother’s eye.”
—Connie Zastoupil, U.S. mother of Quentin Tarantino, director of film Pulp Fiction. Rolling Stone, p. 76 (December 29, 1994)