Method for Manufacturing a Kraft Fiber comprising oxygen and deslignificar Digest with a Softwood Pulp Kappa number to between 6 and 14, bleaching the Pulp bleaching process using a multiple stages and meant oxidising it during at least one stage of the bleaching process With multiple stages, and a Peroxide Catalyst under acid conditions (Divisional no. 3005 - 11)

摘要

a. The method for manufacturing Kraft fiber includes: adsorbing cellulose fiber to kappa number of 6-14 and separating it with oxygen; bleaching cellulose with a polygonal bleaching process; The Kraft fiber was oxidized by peroxide and catalyst at least for one stage. In this stage, the mixed bleaching process includes at least one bleaching stage, and then the oxidation stage.