The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench)
This study investigated the potency of sweet sorghum (Sorghum bicolor) bagasse as raw material for pulp and paper using kraft pulping. The effects of alkali and sulfidity loading on kraft pulp and paper properties were also investigated. The pulping condition of the kraft pulp consisted of three lev...
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doaj-6155e4edcecd4e9cab378f1d5f0e55f22020-11-25T03:32:36ZengITB Journal PublisherJournal of Engineering and Technological Sciences2337-57792338-55022015-05-0147214915910.5614/j.eng.technol.sci.2015.47.2.4The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench)Widya Fatriasari0Supriyanto1Apri Heri Iswanto2Research Center for Biomaterials LIPI, Cibinong, Bogor, Indonesia SEAMEO BIOTROP, Bogor, IndonesiaForestry Department, Forestry Faculty, North Sumatera University, Medan, IndonesiaThis study investigated the potency of sweet sorghum (Sorghum bicolor) bagasse as raw material for pulp and paper using kraft pulping. The effects of alkali and sulfidity loading on kraft pulp and paper properties were also investigated. The pulping condition of the kraft pulp consisted of three levels of alkali loading (17, 19 and 22%) and sulfidity loading (20, 22 and 24%). The maximum cooking temperature was 170°C for 4 h with a liquid to wood ratio of 10:1. Kraft pulping of this Numbu bagasse produced good pulp indicated by high screen yield and delignification selectivity with a low Kappa number (< 10). The unbleached pulp sheet produced a superior brightness level and a high burst index. The increase of active alkali loading tended to produce a negative effect on the pulp yield, Kappa number and paper sheet properties. Therefore, it is suggested to use a lower active alkaline concentration.http://journals.itb.ac.id/index.php/jets/article/view/1455/902alkali and sulfidity loadingkraft pulpingpulp and paper propertiessweet sorghum bagasse |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Widya Fatriasari Supriyanto Apri Heri Iswanto |
spellingShingle |
Widya Fatriasari Supriyanto Apri Heri Iswanto The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) Journal of Engineering and Technological Sciences alkali and sulfidity loading kraft pulping pulp and paper properties sweet sorghum bagasse |
author_facet |
Widya Fatriasari Supriyanto Apri Heri Iswanto |
author_sort |
Widya Fatriasari |
title |
The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) |
title_short |
The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) |
title_full |
The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) |
title_fullStr |
The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) |
title_full_unstemmed |
The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) |
title_sort |
kraft pulp and paper properties of sweet sorghum bagasse (sorghum bicolor l moench) |
publisher |
ITB Journal Publisher |
series |
Journal of Engineering and Technological Sciences |
issn |
2337-5779 2338-5502 |
publishDate |
2015-05-01 |
description |
This study investigated the potency of sweet sorghum (Sorghum bicolor) bagasse as raw material for pulp and paper using kraft pulping. The effects of alkali and sulfidity loading on kraft pulp and paper properties were also investigated. The pulping condition of the kraft pulp consisted of three levels of alkali loading (17, 19 and 22%) and sulfidity loading (20, 22 and 24%). The maximum cooking temperature was 170°C for 4 h with a liquid to wood ratio of 10:1. Kraft pulping of this Numbu bagasse produced good pulp indicated by high screen yield and delignification selectivity with a low Kappa number (< 10). The unbleached pulp sheet produced a superior brightness level and a high burst index. The increase of active alkali loading tended to produce a negative effect on the pulp yield, Kappa number and paper sheet properties. Therefore, it is suggested to use a lower active alkaline concentration. |
topic |
alkali and sulfidity loading kraft pulping pulp and paper properties sweet sorghum bagasse |
url |
http://journals.itb.ac.id/index.php/jets/article/view/1455/902 |
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