Ashori, A., Raverty, W.D., & Jalaluddin, H.

Tropical Forest Science 17 (3): 462–473.

2005

Effects of TCF and ECF sequences on whole stem kenaf(Hibiscus cannabinus) pulp characteristics. Totally Chlorine Free (TCF) and Elemental Chlorine Free (ECF) single- and multi-stage sequences were used to bleach whole stem kenaf pulp. The results indicated that in contrast to unbleached kraft wood pulps, kraft kenaf pulps could be easily bleached to a brightness of 91.4% using a four-stage TCF [Q1(PO)Q2P] bleaching sequence. The ECF bleached pulps had slightly higher selectivity and yield than those of TCF bleached pulps. The strength properties of the TCF [Q1(PO)Q2P] and ECF (D1ED2EP) bleached pulps were comparable, with the exception that tear index were slightly higher and tensile index slightly lower for TCF pulps.

Iranian Research Organization for Science and Technology
Department of Chemical Technologies
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