Abstract:
This independent study was purposed to prepare natural blotting paper containing coconut husk. Coconut husk extracted with NaOH solution and bleached with H2O2 to give soften and lighter color cellulose at an extractive yield of 66.91"±" 9.61%. FTIR analysis exhibited hydroxyl (-OH) at 3,346 cm-1, methyl (-CH2) at 2,926 cm-1, carbon-carbon (C-C) at 1,603 cm-1 and glycoside at 1,061 cm-1 which is (C-O-C) in the bleached coconut husk cellulose. On the means time, carboxyl (C=O) at 1,734 cm-1 and aromatic benzene 1,510 cm-1 that are of lignin were found in the unbleached one. The bleached cellulose (50 g) was prepared into paper with color of L* = 77.00 "± " 1.75, a* = 3.15"±" 0.67 and b*= 19.14 "± " 1.65. The paper (7"×" 7 cm) weighed 0.69"±" 0.08 g with a thickness of 0.40 "± " 0.03 mm was transparence (at visible light range) at 0.06%, while and the oil wetted paper was 0.72%. This blotting paper had oil capacity of 133.99 ± 8.42% with the oil absorption rate of 1.77 "± " 0.86 mm/s.