Bleaching of wood pulp is the chemical processing carried out on various types of wood pulp to decrease the color of the pulp, so that it becomes whiter. The main use of wood pulp is to make paper where whiteness (similar to but not exactly the same as "brightness") is an important characteristic. The processes and chemistry described in this article are also applicable to the bleaching of non-wood pulps, such as those made from bamboo or kenaf.
Read more about Bleaching Of Wood Pulp: Paper Brightness, Bleaching Mechanical Pulps, Bleaching of Recycled Pulp, Bleaching Chemical Pulps, Environmental Considerations
Famous quotes containing the words bleaching, wood 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)
“It is remarkable what a value is still put upon wood even in this age and in this new country, a value more permanent and universal than that of gold. After all our discoveries and inventions no man will go by a pile of wood. It is as precious to us as it was to our Saxon and Norman ancestors. If they made their bows of it, we make our gun-stocks of it.”
—Henry David Thoreau (1817–1862)
“Tell me, how many hands have palpated the pulp that has grown so generously around your hard, bitter little soul?”
—Vladimir Nabokov (1899–1977)