R.L.M. Satrio Ari Wibowo1), Sri Sumarni1), Ambar Pertiwiningrum2), Suharjono Triatmojo2)
One of the results of marine fauna in Indonesia is Pufferfish fish. Pufferfish fish is unique in its body surface covered with spikes and a fish species that are toxic, that the fish utilization is not maximized. On the other hand, the skin can be used as alternative raw materials for the tanning industry given the limitations of raw leather raw material land animals. The aim of this study was to process puffer fish skin which are avoided as toxic to be useful to society, test technical methods of environmental friendly tanning, examines the factors of the results of physical tests of Tensile Strength, Power Stretch and Resilience of Tear, and examine the structure of the specification from pufferfish skin with histological structure of the skin in a light microscope. This study was using skin of Pufferfish were 100 pieces of puffer fish skin taken from Rembang, Central Java of tanned using environmentally friendly tanning materials covering mimosa, quebracho and tare up into crust skin of Pufferfish. Treatment was using variations in the concentration of environmentally-friendly tanning materials used were 16%, 18% and 20%. The use of tanning mimosa 16% shows the value of Tensile Strength and the highest Tear Strength is 1902,873 N / cm2 and 509,812 N / cm and elongation values and the lowest enervation is amounting to 92 407% and 2.84mm. Quebracho tanning material use was 16% showed the highest tensile strength that is equal to 1859,952 N / cm2 and elongation values and the lowest enervation is 103.12% and 2.44mm, the use of tanning quebracho 20% shows the highest value of tear strength equal to 402 299 N / cm. The use of tanning Tara 18% shows the highest value of tensile strength and tear strength is 1354,193 N / cm2 and 262,392 N / cm, the use of tanning tara 16% showed the lowest enervation value equal to 3.4mm and the use of tanning tara 20 % indicate elongation value equal to 65.06%.
Keywords: green chemical; puffer fish; physical test