PERBANDINGAN ZAT PEWARNA EKSTRAK DAUN DAN SERASAH TENGKAWANG (Shorea macrophylla Ashton) YANG TERFIKSASI TERHADAP KAYU SENGON (Paraserianthes falcataria (L.) Nielsen)

Utin Icha Wahyuni, Farah Diba, Ari Widiyantoro

Abstract


Wood was used as main component of raw material for sculpture and souvenir in West Kalimantan. High demand of this product made the artisan used wood with low quality, such as Sengon wood which has low densities and unsuitable color. Therefore to overcome the problem they used natural dye from leave of several woods. But the color still not performs well and easy to leach when the wood has expose to the light. This research aimed to made a natural dye from leaves and herbs of Tengkawang wood (Shorea macrophylla Ashton) with fixation materials were CaCO3; FeSO4 an (Kal(SO4)2.12H2O). Evaluation the durability of color was conducted according ASTM D 870-02-2002 and ASTM D 1308-02-2013 standard. The result showed that fixation material increased the color and durability of natural dye from leaves and herbs. Their values were fulfilling the standard. Extract from leaves was good from leaching in hot water process but not so good in cold water and detergen process. Vice versa with the result from extract of herbs, the value was good on durability from leaching in cold water and detergen process and not good on hot water process. The natural extract from leaves and herbs of Tengkawang with fixation process can be used for natural dye to product of sculpture and souvenir from wood in West Kalimantan.Keywords: fixation, natural dye, Paraserianthes falcataria, sculpture, Shorea macrophylla.

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