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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Combination treatment of kenaf bast fiber for high viscosity pulp

Journal of Wood Science volume 46, pages 364–370 (2000)Cite this article

Abstract

The viscosity of kenaf bast fiber has been found to be highly sensitive and variable with different pulping methods; therefore, it is important to choose proper chemicals and conditions for pulping and bleaching of kenaf bast fiber. From several pulping experiments, a nonconventional pulping method with a combination of ammonium oxalate pretreatment followed by soda pulping at normal pressure and then acidic chlorite delignification was developed to obtain high-viscosity pulp (162 centipoise). The optimum level of alkali dosage of soda pulping for high-viscosity pulp was found to be 15% (on pulp as NaOH). Pulps showed linear relations between viscosity and xylose or glucose contents, but the combination pulping method gave extremely high pulp viscosity, beyond the relations. The highest viscosity pulp from kenaf bast fiber demonstrated a tear index about twofold and a folding endurance 6.2-fold higher than those of Manila hemp pulp with comparable tensile and burst indexes. The high-viscosity pulp could be used in the production of high-quality currency paper or longevity paper for special uses.

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Authors and Affiliations

  1. Wood Chemistry Laboratory, Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Kochi, Japan

    Bibhuti B. Mazumder, Yoshito Ohtani, Zhou Cheng & Kazuhiko Sameshima

Authors
  1. Bibhuti B. Mazumder
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  2. Yoshito Ohtani
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  3. Zhou Cheng
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  4. Kazuhiko Sameshima
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Correspondence to Kazuhiko Sameshima.

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Mazumder, B.B., Ohtani, Y., Cheng, Z. et al. Combination treatment of kenaf bast fiber for high viscosity pulp. J Wood Sci 46, 364–370 (2000). https://doi.org/10.1007/BF00776397

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  • DOI: https://doi.org/10.1007/BF00776397

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