EVALUATION OF KRAFT PULP PROPERTIES FROM KENAF BAST FIBERS

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RESALATI H.; NASERI N.; GHASEMIAN A.; KOUHANDEL A.; MORTEZAEI FRIZHENDI GH.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2008 | Volume:15 | Issue:2 Page(s): 21-30

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Title

EVALUATION OF KRAFT PULP PROPERTIES FROM KENAF BAST FIBERS

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Keywords

BAST FIBERQ3

KRAFT PULPQ3

PULP YIELDQ3

KAPPA NUMBERQ3

PULP FREENESSQ3

Abstract

The kenaf samples at the present research were prepared from a digitated leaf variety 7635 (Hibiscus cannabinus), in Varamin Cotton Investigations Center. Kenaf BAST FIBERs have been separated from woody cores of whole kenaf plants and were cut to 4-5 centimeter pieces after washing with tap water, air dried and consequently used for making KRAFT PULP. Under different cooking conditions (Sulfidity 25%, Cooking temperature 170oC, Liquor to chips ratio 7:1, active alkali of 14, 16 and 18% and cooking times of 30, 50 and 75 min), several pulps in the PULP YIELD ranges of 50 to 60 % and KAPPA NUMBER of 17 to 30, were obtained. The results of kenaf pulp evaluations have shown that, the independent effects of active alkali and cooking times on KAPPA NUMBER and PULP YIELD were significant at 99% confidence, but their corresponding effects were significant for KAPPA NUMBER and insignificant for PULP YIELD at both 95 and 99% confidence levels. Based on the relations between PULP YIELD and KAPPA NUMBER, three different treatments in the KAPPA NUMBER ranges of 20, 25 and 30 were selected. In order to determine the appropriate KAPPA NUMBER and refined PULP FREENESS in terms of optimum paper properties, hand sheets of kenaf BAST FIBER KRAFT PULPs at different levels of KAPPA NUMBER and PULP FREENESS of 400, 450 and 500 ml, CSF, have been evaluated. The results have shown that, kenaf BAST FIBER KRAFT PULP at KAPPA NUMBER of 25 and PULP FREENESS of 400 had better quality in case of overall paper properties.

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APA: Copy

RESALATI, H., NASERI, N., GHASEMIAN, A., KOUHANDEL, A., & MORTEZAEI FRIZHENDI, GH.. (2008). EVALUATION OF KRAFT PULP PROPERTIES FROM KENAF BAST FIBERS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 15(2), 21-30. SID. https://sid.ir/paper/9654/en

Vancouver: Copy

RESALATI H., NASERI N., GHASEMIAN A., KOUHANDEL A., MORTEZAEI FRIZHENDI GH.. EVALUATION OF KRAFT PULP PROPERTIES FROM KENAF BAST FIBERS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;15(2):21-30. Available from: https://sid.ir/paper/9654/en

IEEE: Copy

H. RESALATI, N. NASERI, A. GHASEMIAN, A. KOUHANDEL, and GH. MORTEZAEI FRIZHENDI, “EVALUATION OF KRAFT PULP PROPERTIES FROM KENAF BAST FIBERS,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 15, no. 2, pp. 21–30, 2008, [Online]. Available: https://sid.ir/paper/9654/en

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