Abstract
The production of bottled tea beverages generates a large amount of black tea waste, which may cause serious environmental problems without proper handling. Black tea waste has potential as natural batik dyes due to the tannin contains. In this study, the potential of black tea waste to dye batik on cotton and silk has been investigated. Black tea waste was extracted using water as the solvent with ratio 1:5 of material to solvent for an hour at 100 °C. The dyeing performance of the extracts was evaluated by measuring the K/S value and the chromatic values CIELab. The fastness properties of the dyed samples and the effect of different mordant type on dyeing quality were also studied. The fastness properties of the samples were in the range of good to excellent. The results show that there is a strong possibility to utilize black tea waste as natural batik dyes on cotton and silk.
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