Investigation into xylanase boosting bleaching of wood pulp
FU Ying-juan
Abstract
FU Ying-juan
Abstract
The effects of xylanase boosting bleaching of wood pulp and wheat straw pulp are investigated in this paper.The results show that the wood pulp pretreated with xylanase can reduce chlorine charge by 20% with the similar brightness as that of control,while the wheat straw pulp can reduce chlorine charge by 12%~25%.Compared with the control respectively,the strength of wood pulp pretreated with xylanase has no clear change but the breaking length of wheat straw pulp decreases,while the burst index increases.
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The effects of xylanase boosting bleaching of wood pulp and wheat straw pulp are investigated in this paper.The results show that the wood pulp pretreated with xylanase can reduce chlorine charge by 20% with the similar brightness as that of control,while the wheat straw pulp can reduce chlorine charge by 12%~25%.Compared with the control respectively,the strength of wood pulp pretreated with xylanase has no clear change but the breaking length of wheat straw pulp decreases,while the burst index increases.
Key concepts: Xylanase, Pulp (tooth), Straw, Pulp and paper industry, Chemistry, Chlorine dioxide, Chlorine, Kappa number