国立研究開発法人 国際農林水産業研究センター | JIRCAS

Chlorine-Free Bleaching of Kraft Pulp from Oil Palm Empty Fruit Bunches

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Chlorine-free bleaching was carried out on kraft pulp from oil palm empty fruit bunches (EFB) with an oxygen (O2) - acid (H2SO4) - ozone (O3) - hydrogen peroxide (H2O2) bleaching sequence. The κ-number (= an indicator of lignin content) of the pulp was reduced considerably after these processes indicating that most of the lignin present in the pulp can be removed using this chlorine-free sequence. Handsheets of both bleached and unbleached EFB pulp were prepared and their paper properties were determined. Brightness, a measure of the whiteness of paper, was achieved to ca. 75% for the bleached EFB pulp, showing a possibility of achieving 80% of brightness by chlorine-free bleaching. Paper strengths as indicated by tensile, tear and burst indices as well as stretch did not show significant differences between before and after bleaching. It is notable that these results were obtained despite a large decrease in viscosity by the bleaching process. Moreover, the EFB bleached pulp showed comparable strengths to hardwood pulps, indicating that EFB has the potential as a raw material for chemical pulp production using chlorine-free bleaching sequences.

刊行年月2004-10-01
作成者TANAKA RyoheiWAN ROSLI W. D.MAGARA KengoIKEDA TsutomuHOSOYA Shuji
著者キーワード

EFB

oxygen

ozone

brightness

paper strengths

公開者Japan International Research Center for Agricultural Sciences
データ作成日2004-10-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
38
4
開始ページ275
終了ページ279
DOI10.6090/jarq.38.275
権利Japan International Research Center for Agricultural Sciences
言語eng