UTILIZATION OF SIWALAN (BORASSUS FLABELLIFER L.) PLANTATION WASTE FOR KRAFT PAPER PRODUCTION

Azmi Alvian Gabriel, Yunita Siti Mardhiyyah

Borassus flabellifer L., one of the palm-based commodities in Indonesia grows in dry areas especially around the north coast of Java Island. An abundant waste of this plant is a leaf midrib and fruit fiber have an opportunity as a source of lignocellulose for the paper industry. In this study, Kraft paper production was conducted to know the influence of the proportion of Borassus flabellifer L. leaf midrib pulp and the fruit fiber pulp, and the concentration of Polyvinyl Acetate (PVAc) adhesives on the sensory and physical quality of kraft paper. The research method used was Randomized Block Design (RBD) with two factors. The Friedman test was used to determine the sensory quality of kraft paper. The physical quality of kraft paper was used ANOVA analysis. The results showed that the treatments of raw material proportion and PVAc adhesive concentration had significant effects on color, surface texture, yield, and tensile resistance, but not significantly different between treatment of gramature and tear resistance. The best treatment of sensory tests was kraft paper with proportion of leaf midrib pulp 50% and fruit fiber pulp 50% and a 7.5% PVAc adhesive concentration. It has a yield value 72.11%, gramature 162.80 g/m2, tensile strength 1.70 %, and tear resistance 197.6 gf.

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