From Wikipedia, the free encyclopedia. Harry Potter and the Deathly Hallows is the 2010/2011 two-part finale of the Harry Potter film series. Both Part 1 and Part 2 were directed by David Yates, written by Steve Kloves, and form the screen adaptation of the novel of the same name by J. K. Rowling.
Acetate fibers are molded from solutions of cellulose acetate in organic solvents (triacetate cellulose in a mixture of methylene chloride and alcohol, secondary cellulose acetate in acetone), usually by the so-called dry method.By this method filaments, the so-called acetate silk, are obtained.ater acetate fiber production decreased after the appearance of new types of valuable synthetic fibers. In 1967 the world output of acetate fibers was 397,000 tons, 6.4 percent of the total production of chemical fibers. Rogovin, Z. A. Osnovy khimii i tekhnologii proizvodstva khimicheskikh volokon, vol. 1, 3rd ed.
Man-made fibres are to be distinguished from natural fibres such as silk, cotton, and wool. Natural fibres also consist of polymers (in this case, biologically produced compounds such as cellulose and protein), but they emerge from the textile manufacturing process in a relatively unaltered state. Some man-made fibres, too, are derived from naturally occurring polymers.